| 单词 | pestis |
| 例句 | Scientists identified three cases of Yersinia pestis, the bacteria causing the plague, in human remains - two in a mass burial in Somerset, and one in a ring cairn monument in Cumbria. Researchers find oldest evidence of the plague in Britain 2023-05-31T04:00:00Z We see this with the occasional bubonic plague outbreak, which is caused by the bacteria Yersinia pestis and lives in wild rodents like groundhogs. COVID is spreading from humans to animals and back again 2023-01-24T05:00:00Z In October, they reported in Nature that survivors were much more likely to carry gene variants that boosted their immune response to Yersinia pestis, the flea-borne bacterium that causes the plague. Science’s 2022 Breakthrough of the Year: A telescope’s golden eye sees the universe anew 2022-12-14T05:00:00Z The dramatic decline of the European population during the Black Death in the 1300s was a direct consequence of crowded and unsanitary living conditions that facilitated the spread of Yersenia pestis, or plague. Population growth, climate change create an ‘Anthropocene engine' that's changing the planet 2022-11-16T05:00:00Z The results were confirmed in modern day experiments using the plague bacterium - Yersinia pestis. Black Death 700 years ago affects your health now 2022-10-19T04:00:00Z The team took small skeletal samples from 34 individuals looking for the presence of Yersinia pestis in teeth. Researchers find oldest evidence of the plague in Britain 2023-05-31T04:00:00Z The team confirmed it also can suppress Y. pestis bacteria by measuring how the genes of cultured human immune cells responded to the pathogen. Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z Bubonic plague is caused by Yersinia pestis, a species of bacteria spread by fleas. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z An ancestral strain of Yersinia pestis—the bacterium responsible for the Black Death—was sequenced from the teeth of two 14th-century women buried eight years before the plague spread across Europe. News Briefs from around the World: September 2022 2022-09-17T04:00:00Z Pneumonic plague caused by Yersinia pestis was a pandemic that occurred in the 14th century. Biology for AP Courses 2022-06-09T00:00:00Z "We see that this Yersinia pestis lineage, including genomes from this study, loses genes over time, a pattern that has emerged with later epidemics caused by the same pathogen." Researchers find oldest evidence of the plague in Britain 2023-05-31T04:00:00Z And they have led him to wonder whether genetic shifts—and not better pest control or improved cleanliness—explain why Y. pestis is less dangerous today than it was in the 14th century. Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z The research team were able to find the plague bacterium, Yersinia pestis, in three of them. Plague: Ancient teeth reveal where Black Death began, researchers say 2022-06-15T04:00:00Z They found genetic fingerprints of the bacterium Yersinia pestis in individuals who had been buried with tombstones referring to a “pestilence” at the site by Lake Issyk Kul, in what is now Kyrgyzstan. Black Death’s ancient origins traced to lake in Central Asia 2022-06-15T04:00:00Z Bubonic plague caused by Yersinia pestis was a pandemic that occurred in the 14th century. Biology for AP Courses 2022-06-09T00:00:00Z The researchers also analysed the DNA and identified three cases of Yersinia pestis in two children, thought to be 10 to 12 years old when they died, and one woman aged between 35 and 45. Researchers find oldest evidence of the plague in Britain 2023-05-31T04:00:00Z Now, Slavin is senior author of a new study of ancient DNA from the “pestilence” victims showing they were indeed infected with the bacterium, Yersinia pestis, that caused the Black Death. 800-year-old graves pinpoint where the Black Death began 2022-06-15T04:00:00Z What was known as the Black Death — named after black spots that appeared on victims’ bodies — is caused by a bacterium, Yersinia pestis, that is carried by fleas that live on rodents. Where Did the Black Death Begin? DNA Detectives Find a Key Clue. 2022-06-15T04:00:00Z The researchers extracted Y. pestis DNA from tissues inside two of the women’s teeth and sequenced the genomes of those pathogens, which were found to be identical. Ancient Women’s Teeth Reveal Origins of 14-Century Black Death 2022-06-15T04:00:00Z Bubonic plague caused by Yersinia pestis was a pandemic that occurred in the 14th century. Biology for AP Courses 2022-06-09T00:00:00Z Black rats carried fleas that were infested with a bacillus called Yersinia pestis. World History: Patterns of Interaction 2012-01-01T00:00:00Z That strain “fell exactly on the origin point of that big bang event” in the evolution of Y. pestis, Spyrou says. 800-year-old graves pinpoint where the Black Death began 2022-06-15T04:00:00Z The 14th-century plague was actually the second large Y. pestis epidemic — the first was the Plague of Justinian in the sixth century, said Mary Fissell, a medical historian at Johns Hopkins University. Where Did the Black Death Begin? DNA Detectives Find a Key Clue. 2022-06-15T04:00:00Z Next, the scientists compared the recovered Y. pestis strain with 203 modern and 47 historical genomes of the species. Ancient Women’s Teeth Reveal Origins of 14-Century Black Death 2022-06-15T04:00:00Z The Plague of Athens was a disease caused by Yersinia pestis that killed one-quarter of Athenian troops in 430 BC. Biology for AP Courses 2022-06-09T00:00:00Z Monica Green, an independent historian based in Phoenix, speculated that the Black Death might have been caused by two strains of the bacteria Yersinia pestis, which could have caused different levels of devastation. Did the ‘Black Death’ Really Kill Half of Europe? New Research Says No. 2022-02-10T05:00:00Z The Soviets also weaponized and mass-produced a number of dangerous naturally occurring viruses, including the anthrax and smallpox viruses, as well as the plague-causing Yersinia pestis bacterium. Bioweapons research is banned by an international treaty — but nobody is checking for violations 2021-08-05T04:00:00Z It and other researchers reported that the tree had a trunk and then, all at once, seemed to explode into four branches of Y. pestis strains whose descendants are found today in rodents. Where Did the Black Death Begin? DNA Detectives Find a Key Clue. 2022-06-15T04:00:00Z He notes that Y. pestis strains are “notoriously clonal,” or nearly identical, and slow to evolve. Ancient Women’s Teeth Reveal Origins of 14-Century Black Death 2022-06-15T04:00:00Z The Plague of Athens was a disease caused by Yersinia pestis that killed one-quarter of Athenian troops in 430 BC. Biology for AP Courses 2022-06-09T00:00:00Z Genetic analysis suggests the Y. pestis strain that infected the man emerged about 7,100 years ago, researchers reported online June 29 in Cell Reports. Ancient human bones reveal the oldest known strain of the plague 2021-07-16T04:00:00Z They were surprised to find one hunter-gatherer - a man in his twenties - was infected with an ancient strain of plague, caused by the bacterium, Yersinia pestis. 5,000-year-old man was 'oldest plague victim' 2021-06-29T04:00:00Z Marmots in that area today have fleas that carry a type of Y. pestis that appears to be derived directly from the ancestral strain. Where Did the Black Death Begin? DNA Detectives Find a Key Clue. 2022-06-15T04:00:00Z Among those samples, DNA from Yersinia pestis, the bacterium that causes plague, was found in two ancient Siberians, the researchers report in this month’s Science Advances. Plague may have caused die-offs of ancient Siberians 2021-01-08T05:00:00Z It uses a purified protein from Yersinia pestis, the bacterium that causes the disease. Endangered ferrets get experimental COVID-19 in Colorado 2020-12-25T05:00:00Z The man was carefully buried, and the team didn’t find mass graves or Y. pestis infection in other individuals’ DNA, suggesting people in the area weren’t facing an epidemic. Ancient human bones reveal the oldest known strain of the plague 2021-07-16T04:00:00Z More specifically, the organism Yersinia pestis causes the disease. Bubonic plague infects boy, 3, in China: report 2020-09-29T04:00:00Z But nothing poses a greater existential threat than the bacteria Yersinia pestis – otherwise known as plague. An invisible enemy: the battle to save black-footed ferrets from the plague 2020-09-07T04:00:00Z The new data coincide with evidence reported in June in Cell of Y. pestis DNA in two ancient individuals from eastern Siberia’s Lake Baikal region, dating to about 4,500 years ago. Plague may have caused die-offs of ancient Siberians 2021-01-08T05:00:00Z In 2011, scientists published the first such genome7, of Y. pestis, gathered from four skeletons in a London graveyard where thousands of Black Death victims were buried in the fourteenth century. Smallpox and other viruses plagued humans much earlier than suspected 2020-07-22T04:00:00Z Although this Y. pestis is the oldest strain ever found, it ultimately went extinct, being replaced by other, more virulent versions — a common fate in the evolutionary history of both bacteria and viruses. Ancient human bones reveal the oldest known strain of the plague 2021-07-16T04:00:00Z It wasn’t until 1894 that Swiss scientist Alexandre Yersin discovered the bacillus that caused the plague: Yersinia pestis, named in his honor. Bingeing on doom: Expert on world's 14th century pandemic attracts a cult following 2020-07-21T04:00:00Z Yersinia pestis, which killed millions of people across Europe in the middle ages, is the ferrets’ biggest biological enemy, says Livieri, who founded the conservation nonprofit Prairie Wildlife Research in 2001. An invisible enemy: the battle to save black-footed ferrets from the plague 2020-09-07T04:00:00Z But it’s possible that the ancient Siberians were infected with a version of Y. pestis that wasn’t virulent. Plague may have caused die-offs of ancient Siberians 2021-01-08T05:00:00Z Plague is a potentially lethal infectious disease that is caused by bacteria called Yersinia pestis that live in some animals - mainly rodents - and their fleas. What is bubonic plague? 2020-07-06T04:00:00Z In anticipation of collection’s 100th anniversary, Ms. Dumitriu created the raw-silk “Plague Dress,” impregnated with killed Yersinia pestis bacteria, which she extracted from the collection’s samples with Dr. Alexander’s help. A Living Library Filled With Killer Bacteria 2020-06-08T04:00:00Z The disease is caused by a strain of bacteria, Yersinia pestis, that lives on fleas that live on rats. How Pandemics End 2020-05-10T04:00:00Z Centuries later, scientists concluded that the disease was caused by the bacillus Yersina pestis, which spread through touch, through the air and through the bite of infected fleas and rats. This champion academic decathlon team studied pandemics. Now, they're living one 2020-03-26T04:00:00Z Genetic data from only two individuals provides too little evidence to confirm that they possessed a virulent strain of Y. pestis, Poinar says. Plague may have caused die-offs of ancient Siberians 2021-01-08T05:00:00Z Like so many visitors to Galveston, the bubonic v bacterium Yersinia pestis, likely entered through the port, where ships from around the world carried not only goods but rats, Summerly said. Galveston marks 100 years since deadly plague outbreak 2020-01-18T05:00:00Z The Justinianic outbreak was caused by the bacterium Yersinia pestis, which scholars believe originated in Central Asia, and primarily afflicted the Eastern Roman Empire. Ancient bubonic plague outbreak might have been exaggerated, study shows 2019-12-03T05:00:00Z The plague is usually contracted after being bitten by a rodent flea carrying the Yersinia pestis bacterium or by handling an infected animal, according to the CDC. 2 patients diagnosed in China with pneumonic plague 2019-11-13T05:00:00Z "These findings indicate a single entry of Y. pestis into Europe through the east," archaeogeneticist Maria Spyrou, from the Max Planck Institute for the Science of Human History, said in a statement. Ancient DNA puts Black Death's origin in Russian region 2019-10-03T04:00:00Z Plague – sometimes called the “black plague,” according to Healthline – is a potentially deadly infection that is caused by a strain of bacteria known as Yersinia pestis. Plague-infected prairie dogs in Colorado pose health risk to humans, areas of wildlife refuge remain closed 2019-08-20T04:00:00Z Plague — sometimes called the “black plague,” according to Healthline — is a potentially deadly infection caused by a strain of bacteria known as Yersinia pestis. Plague kills off Colorado prairie dog colony, state officials say 2019-08-16T04:00:00Z The rodent is a known carrier of Yersinia pestis, the bacterium commonly associated with the highly contagious bubonic plague. Mongolian couple die of bubonic plague after eating marmot, triggering quarantine 2019-05-07T04:00:00Z The bacterium that causes plague, Yersinia pestis, had been identified in 1894, but little was known about transmission, treatment or prevention. Plague in San Francisco: rats, racism and reform 2019-04-23T04:00:00Z "The silver bullet I dream of," Chouin says, is ancient Y. pestis DNA from human remains in sub-Saharan Africa. The Black Death may have transformed medieval societies in sub-Saharan Africa 2019-03-06T05:00:00Z Plague — sometimes called the “black plague,” according to Healthline — is a potentially deadly bacterial infection that is caused by a strain of bacteria known as Yersinia pestis. Plague infects third Wyoming cat in 6 months, health officials say 2019-01-08T05:00:00Z All forms of the plague are caused by the bacterium Yersinia pestis, but the strain from Gökhem bore the genetic hallmarks of pneumonic plague. Earliest plague strain found in Sweden holds clue to stone age migration from east 2018-12-06T05:00:00Z The Y. pestis sequences are as old as any known plague strain — and they sit closer than any other to the base of the deadly pathogen’s evolutionary tree. Plague linked to the mysterious decline of Europe’s first farmers 2018-12-05T05:00:00Z The sample is one of the oldest ever found, and it belongs to a previously unknown branch of the Y. pestis evolutionary tree. Did a new form of plague destroy Europe’s Stone Age societies? 2018-12-06T05:00:00Z Although the region's heat and humidity quickly degrade DNA, Stone hopes researchers will begin to look for DNA in human teeth, where Y. pestis DNA is most likely to be preserved. The Black Death may have transformed medieval societies in sub-Saharan Africa 2019-03-06T05:00:00Z A cause of the disease was the bacterium Yersinia pestis, but lacking microscopes, many at the time turned a keen eye on the Jews and killed them by the thousands. Opinion | Young leaders aren’t the solution. They’re wreaking havoc on the world. 2018-12-03T05:00:00Z “I said to my wife, ‘Gee, I took the pestis,’ ” he recalled. Do Proteins Hold the Key to the Past? 2018-11-19T05:00:00Z Rasmussen’s team identified Y. pestis sequences in publicly available data from previous studies that examined the genetics of the region’s human inhabitants. Plague linked to the mysterious decline of Europe’s first farmers 2018-12-05T05:00:00Z Prior to the publication of this paper, scientists thought that the variety of Yersinia pestis that caused the Black Plague emerged around 1,000 BCE. Ancient Teeth Unlock Plague Secrets 2018-06-08T04:00:00Z In 2015, Dr. Willerslev and his colleagues discovered DNA of the bacteria Yersinia pestis, which causes bubonic plague, in seven Bronze Age skeletons unearthed in Europe and Asia. In Ancient Skeletons, Scientists Discover a Modern Foe: Hepatitis B 2018-05-09T04:00:00Z Early divergent strains of Yersinia pestis in Eurasia 5,000 years ago. Ancient hepatitis B viruses from the Bronze Age to the Medieval period 2018-05-08T04:00:00Z They extracted more than six hundred proteins from the plague records, including seventeen from the family of Yersinia pestis. Do Proteins Hold the Key to the Past? 2018-11-19T05:00:00Z The pandemic, one of the worst in human history, killed tens of millions. Up to 60 percent of the population succumbed to the bacteria called Yersinia pestis during outbreaks that recurred for 500 years. The classic explanation for the Black Death plague is wrong, scientists say 2018-01-16T05:00:00Z Because of rats’ role in modern plagues, as well as genetic evidence that medieval plague victims died of Y. pestis, many experts think that rats also spread plague during the Second Pandemic. Maybe Rats Aren't to Blame for the Black Death 2018-01-15T05:00:00Z Plague is an infectious disease caused by the bacteria “Y. pestis,” which is spread by small mammals and their fleas. WHO: Plague outbreak in Madagascar is slowing 2017-11-27T05:00:00Z Dr Herbig said this supports "the view that Y. pestis was possibly introduced to Europe from the steppe around 4,800 years ago, where it established a local reservoir before moving back towards Central Eurasia". Plague reached Europe by Stone Age 2017-11-22T05:00:00Z Plague is caused by the bacterium Yersinia pestis. Fearsome Plague Epidemic Strikes Madagascar 2017-10-06T04:00:00Z Plague is an infectious disease caused by the Yersinia pestis bacteria. The Plague Is Killing Dozens of People in Madagscar 2017-10-06T04:00:00Z Plague is an infectious disease that is caused by the Yersinia pestis bacteria. People Are Still Getting the Plague. Here's What to Know 2017-06-28T04:00:00Z Plague is caused by the bacterium Yersinia pestis, which humans get when they are bitten by rodent-riding fleas. Plague Is Found in New Mexico. Again. 2017-06-27T04:00:00Z Analysis of the ancient plague DNA shows that Y. pestis genomes from the Neolithic and Bronze Age were all fairly closely related. Plague reached Europe by Stone Age 2017-11-22T05:00:00Z The Black Death, which killed tens of millions in the 14th century, was zoonotic — a result of the bacterium Yersinia pestis that was transmitted to humans via fleas that lived on rats. Study: The next pandemic may come from bats 2017-06-27T04:00:00Z The tests revealed the presence of Yersinia pestis, the bacterium responsible for the plague. Thornton Abbey Black Death plague pit excavated - BBC News 2016-11-29T05:00:00Z That illness, an infection with the bacterium Yersinia pestis, is very hard to spread even from person to person, unless there is direct contact with liquid bodily secretions. Is the Plague Still Alive in Musty 14th-Century Tomes? 2016-11-07T05:00:00Z It is a significant find and is the first time that DNA evidence has supported the identification of Yersinia pestis as an agent in the Great Plague of 1665. The Great Plague of 1665: Case Closed? 2016-09-14T04:00:00Z However, it's certainly possible that these early Y. pestis bacteria were already capable of causing large-scale epidemics. Plague reached Europe by Stone Age 2017-11-22T05:00:00Z Scientists hope to be able to sequence the DNA from the 1665 outbreak and compare it with Yersinia pestis DNA recovered from a 14th century plague pit elsewhere in London. DNA in London Grave May Help Solve Mysteries of the Great Plague 2016-09-08T04:00:00Z They found Y. pestis in sixth-century skeletons from Altenerding, an ancient burial site near Munich, and created the first high-quality genome -- the full set of genes -- of that strain of Y. pestis. 6th-Century Skeletons Shed Light on Deadly Plague Outbreaks 2016-09-02T04:00:00Z Researchers are eager to create a plague family tree in order to understand the movements and impact of different varieties of Y. pestis across time and space. How Europe exported the Black Death 2016-04-26T04:00:00Z The discovery of Yersinia pestis deaths in the 17th century is progressive: the first biomedical evidence that confirms that Yersinia pestis played a role in London’s early modern epidemics. The Great Plague of 1665: Case Closed? 2016-09-14T04:00:00Z Rat-infested steamships sailing from affected areas brought the disease, which is caused by Yersinia pestis bacteria found in rodents and their fleas. Researchers ID Areas of Western U.S. With Risk of Plague 2015-12-31T05:00:00Z He turned to several ancestral strains of Y. pestis that continue to circulate in rodents in the highlands of China and Central Asia, likely the ancestral home of the bacterium. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z "Our research confirms that the Justinianic plague reached far beyond the historically documented affected region and provides new insights into the evolutionary history of Yersinia pestis," researcher Michal Feldman said in a journal news release. 6th-Century Skeletons Shed Light on Deadly Plague Outbreaks 2016-09-02T04:00:00Z They determined that the victims all died of a highly similar strain of Yersinia pestis, the plague bacterium, which mutated in Europe and then traveled eastward in the decade following the Black Death. How Europe exported the Black Death 2016-04-26T04:00:00Z An early Iron Age skeleton from Armenia dated to around 1000 BC was infected with Y. pestis that harboured ymt as well as another mutation linked to flea-aided transmission. Bronze Age Skeletons Were Earliest Plague Victims 2015-10-23T04:00:00Z The teeth of seven of them, from across western Europe and central Asia, contained evidence of Yersinia pestis infection - the killer bacterium that causes plague. Plague traced back to Bronze Age - BBC News 2015-10-22T04:00:00Z This protein is present in Y. pseudotuberculosis, but a genetic mutation stops the Y. pestis bacterium from creating it. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z The discoveries offer new insights about the evolution of Y. pestis since the Justinian plague. 6th-Century Skeletons Shed Light on Deadly Plague Outbreaks 2016-09-02T04:00:00Z Using DNA from the teeth of five individuals who died in 1722, the group found that the Y. pestis strain in Marseille likely evolved from the Black Death. How Europe exported the Black Death 2016-04-26T04:00:00Z The six oldest Bronze Age strains lacked a gene called ymt that helps Y. pestis to colonize the guts of fleas, which serve as an important intermediary. Bronze Age Skeletons Were Earliest Plague Victims 2015-10-23T04:00:00Z They found Yersinia pestis with this mutation in a person who died in Armenia in about 951 BC, the most recent of the 101 studied. 'Black Death' germ has afflicted humankind longer than suspected 2015-10-22T04:00:00Z These strains provided an intermediate version between Y. pseudotuberculosis and modern Y. pestis. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z Until now, the first clear evidence of Yersinia pestis infection was the Plague of Justinian in the 6th century, which severely weakened the Byzantine Empire. In Ancient DNA, Evidence of Plague Much Earlier Than Previously Known 2015-10-22T04:00:00Z DNA sequencing from all three places revealed the same strain of Y. pestis. How Europe exported the Black Death 2016-04-26T04:00:00Z Yet some historians suspect that Y. pestis was also responsible for earlier outbreaks such as the Plague of Athens, which struck the city-state in the fifth century BC, at the height of the Peloponnesian War. Bronze Age Skeletons Were Earliest Plague Victims 2015-10-23T04:00:00Z Yet some historians suspect that Y. pestis was also responsible for earlier outbreaks such as the Plague of Athens, which struck the city-state in the fifth century bc, at the height of the Peloponnesian War. Bronze Age skeletons were earliest plague victims 2015-10-21T04:00:00Z And when they removed pla from modern strains of Y. pestis, the bacteria lost their ability to cause pneumonia. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z They decided to look for traces of Yersinia pestis, even though the earliest evidence of the infection dates to thousands of years later. In Ancient DNA, Evidence of Plague Much Earlier Than Previously Known 2015-10-22T04:00:00Z In a separate statement, the Army said the CDC raised questions about a particular organism that causes plague — known as Yersinia pestis — during an Aug. 17 inspection at Edgewood. Probe of military labs expands to include handling of plague, encephalitis samples 2015-09-10T04:00:00Z In a separate statement, the Army said the CDC raised questions about a particular organism that causes plague - known as Yersinia pestis - during an Aug. 17 inspection at Edgewood. Probe of military labs expands to plague, encephalitis 2015-09-10T04:00:00Z They shared nearly all of the ‘virulence genes’ that distinguish Y. pestis from a related, although much less deadly, bacterium that infects the intestines. Bronze Age skeletons were earliest plague victims 2015-10-21T04:00:00Z Y. pestis didn’t just acquire pla; the bacterium also changed it. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z In the 14th century, a microbe called Yersinia pestis caused an epidemic of plague known as the Black Death that killed off a third or more of the population of Europe. In Ancient DNA, Evidence of Plague Much Earlier Than Previously Known 2015-10-22T04:00:00Z The bacterium that cause plague, Yersinia pestis, can cause several types of potentially fatal illnesses: bubonic plague, pneumonic plague and septicemic plague. Military lab mislabeled, shipped samples of plague, report says 2015-09-10T04:00:00Z Between Monday and Friday, the National Park Service will dust the Yosemite campground with a powdered insecticide to kill the fleas that transmit the plague-causing bacteria, Yersinia pestis. Plague Warning Closes Campground in Yosemite 2015-08-18T04:00:00Z The six oldest Bronze Age strains lacked a gene called ymt that helps Y. pestis to colonize the guts of fleas, which serve as an important intermediary. Bronze Age skeletons were earliest plague victims 2015-10-21T04:00:00Z When they compared it to Y. pestis, they found that most of the differences between the two were so-called neutral mutations, changes that did not alter the traits of Y. pestis. The Mutant Genes Behind the Black Death 2015-11-04T05:00:00Z Of 101 Bronze Age individuals, the researchers found Yersinia pestis DNA in seven. In Ancient DNA, Evidence of Plague Much Earlier Than Previously Known 2015-10-22T04:00:00Z Y. pestis evolved from an ancestor, Yersinia pseudotuberculosis, that still circulates in European rodents but causes only mild intestinal illness in humans. Study Shows Diseases Like Plague Can Perilously Evolve 2015-07-06T04:00:00Z The addition of the gene long ago transformed Yersinia pestis from a pathogen that caused a mild gastrointestinal infection to one that caused the fatal respiratory disease called pneumonic plague. Minor changes turned Black Death germ from mild to murderous 2015-06-30T04:00:00Z An early Iron Age skeleton from Armenia dated to around 1000 bc was infected with Y. pestis that harboured ymt as well as another mutation linked to flea-aided transmission. Bronze Age skeletons were earliest plague victims 2015-10-21T04:00:00Z As expected, the mutated strain became more deadly and was able to cause respiratory infections as serious as modern-day strains of Y. pestis. Did One Gene Mutation Launch the Black Death? 2015-06-30T04:00:00Z The plague was caused by Yersinia pestis, a bacterium that lives in fleas. Reservoir rats 2015-05-18T04:00:00Z The plague was caused by a bacterium, Yersinia pestis, which lives inside fleas. Of mice and mouse clicks 2015-05-18T04:00:00Z All wound up testing positive for Yersinia pestis, the bacterium that causes plague. Colorado Dog Key to U.S. Plague Outbreak, Study Confirms 2015-04-30T04:00:00Z The disease is transmitted by bites from fleas infected with the bacterium Yersinia pestis. Human Price of Forest Destruction Paid in Plague 2015-03-04T05:00:00Z Centers for Disease Control and Prevention provides more information on the Yersinia pestis, the bacterium that causes plague. Did One Gene Mutation Launch the Black Death? 2015-06-30T04:00:00Z The prevailing theory is—or was—that bacteria responsible for the plague, Yersinia pestis, lived on Europe’s black-rat population. Of Rats, Gerbils, and Men 2015-02-27T05:00:00Z Though less deadly than Ebola or other epidemics, plague – caused by the bacterium Yersinia pestis is fatal in more than 30 percent of cases if left untreated, the study said. Africa's expanding farms attract more plague-infested rats 2015-02-23T05:00:00Z What the researchers probably found, he said, was bacteria from an unknown species or from organisms that happened to share some gene sequences with the plague bacterium, Yersinia pestis, or Y. pestis for short. Bubonic Plague in the Subway System? Don’t Worry About It 2015-02-06T05:00:00Z The three forms of plague are caused by the same bacterium, Yersinia pestis. In China, a single plague death means an entire city quarantined 2014-07-25T04:00:00Z Yersinia pestis, the bacterium that causes plague, has been traced to fleas in the area. John Tull, Lawyer Whose Illness Created a Bioterrorism Scare, Dies at 65 2014-06-26T04:00:00Z Y. pestis strains still cause bubonic plague today, though not at the pandemic levels seen in the Middle Ages. Black Death Survivors and Their Descendants Went On to Live Longer 2014-05-08T20:41:00Z Tc toxin complexes are virulence factors of many bacteria such as the plague pathogen Yersinia pestis and the insect pathogen Photorhabdus luminescens. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z It’s not conclusively known how Y. pestis first entered the City by the Bay. How politics and an earthquake led to prairie dog plague 2013-02-18T14:45:00.227Z Called Yersinia pestis, the bacteria are considered a potential bioterrorism agent. FDA approves antibiotic to treat, prevent plague 2012-04-28T23:01:06Z Figure 3: Phylogenetic placement and historical context for the East Smithfield strain. a, Median network of ancient and modern Y. pestis based on 1,694 variant positions in modern genomes. A draft genome of Yersinia pestis from victims of the Black Death 2011-10-26T17:21:57.317Z This month, geneticists reported that they have reconstructed the genome of Yersinia pestis, the bacterium that causes bubonic plague, recovered from remains at East Smithfield. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Hence, our data lay a strong foundation for understanding the function of other pathogens, including human pathogenic bacteria such as Y. pestis and Y. pseudotuberculosis. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z It was already known in Asia that other rodent species—such as marmots—could host Y. pestis. How politics and an earthquake led to prairie dog plague 2013-02-18T14:45:00.227Z But Dr. Achtman disagreed with one issue in Dr. Krause’s findings, that of whether Yersinia pestis also caused the outbreak in the sixth century known as the Justinian plague. Scientists Sequence Genome of Ancient Plague Bacterium 2011-10-13T19:30:12Z Genetic architecture and phylogenetic analysis indicate that the ancient organism is ancestral to most extant strains and sits very close to the ancestral node of all Y. pestis commonly associated with human infection. A draft genome of Yersinia pestis from victims of the Black Death 2011-10-26T17:21:57.317Z When Alexandre Yersin linked Y. pestis to bubonic plague in 1894, many scientists surmised that the pathogen was behind not only the Black Death, but also a spate of earlier mass die-offs. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Yersinia pestis is known for rapidly shuffling its genes around, but it is not known how this gene order could affect its deadliness and capacity to cause disease. Reports of the Black Death's death have been greatly exaggerated 2011-10-16T16:15:00.250Z The financial strains, the lack of public hygiene and sanitation, and an already weakened population made for ripe ground for a contagious and pathogenic bug like Y. pestis to flourish. The Black Death, Resurrected: Scientists Decode Infamous DNA 2011-10-13T17:35:44Z So even if a strain of Y. pestis were to acquire a new batch of mutations, it would still likely be no match for contemporary antibiotics. How Black Death Kept Its Genes but Lost Its Killing Power [Video] 2011-10-12T19:15:08.907Z Figure 3: Phylogenetic placement and historical context for the East Smithfield strain. a, Median network of ancient and modern Y. pestis based on 1,694 variant positions in modern genomes. A draft genome of Yersinia pestis from victims of the Black Death 2011-10-26T17:21:57.317Z The two considered drilling into teeth and bones to find Y. pestis DNA, but Poinar wasn't satisfied with the available detection tools, which were still based on PCR. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Targeted enrichment of ancient pathogens yielding the pPCP1 plasmid of Yersinia pestis from victims of the Black Death. Reports of the Black Death's death have been greatly exaggerated 2011-10-16T16:15:00.250Z But Dr. Achtman disagreed with one conclusion of Dr. Krause’s team: the question of whether Yersinia pestis also caused the outbreak in the sixth century known as the Justinian plague. Scientists Sequence Genome of Ancient Plague Bacterium 2011-10-12T17:58:42Z This medieval plague was caused by the bacterium Yersinia pestis, which still circulates among humans. How Black Death Kept Its Genes but Lost Its Killing Power [Video] 2011-10-12T19:15:08.907Z Genome architecture is known to vary widely among extant Y. pestis strains. A draft genome of Yersinia pestis from victims of the Black Death 2011-10-26T17:21:57.317Z Historical descriptions of the Black Death have helped link Yersinia pestis with the disease. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z A draft genome of Yersinia pestis from victims of the Black Death. Reports of the Black Death's death have been greatly exaggerated 2011-10-16T16:15:00.250Z Linking the 1349 to 1350 dates of the skeletal remains to the genetic data allowed the researchers to calculate the age of the ancestor of Y. pestis that caused the mediaeval plague. Scientists crack Black Death's genetic code 2011-10-12T17:16:28Z Until this study, some scientists were uncertain about whether Yersinia pestis was the true cause, but Bramanti’s research should settle that question once and for all. The Black Death is dead (thanks to evolution) 2011-09-02T17:26:57Z The Yersinia pestis chromosome is 4,653,728 units of DNA in length, but the bits of DNA from the cemetery are no more than 50 to 60 units long. Sequencing the Microbe That Causes Bubonic Plague 2011-08-29T20:56:26Z Their results, along with a paper published last year that found Y. pestis sequences in different Black Death bone samples, have convinced most scientists that bubonic plague was involved in the Black Death. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z The identity of the disease in rats with that affecting man was established by the discovery in 1894 of Y. pestis by Yersin and Kitasato. Rats and Plague, from a 1911 issue of Scientific American 2011-01-21T13:45:00.430Z The evidence from many sources and from many experiments may be briefly summed up as follows: The disease is caused by the presence in the system of minute bacteria, Bacillus pestis. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases Using the latest DNA sequencing methods, they identified Yersinia pestis DNA in 20 of the 109 victims. The Black Death is dead (thanks to evolution) 2011-09-02T17:26:57Z The agent of the Black Death is assumed to be Yersinia pestis, the microbe that causes bubonic plague today. Sequencing the Microbe That Causes Bubonic Plague 2011-08-29T20:56:26Z This indicates that the Black Death strain spawned many of the forms of Y. pestis that infect humans today. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Prevention.—Prolonged isolation, disinfection of the discharges, cremation of plague victims, destruction of rats, and preventive inoculation of healthy persons with sterilized cultures of the bacillus pestis. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Another hath the picture of a ship at sea sinking in a storm, and a house on fire; the motto "Tertia pestis abest"; meaning a wife. The Natural History of Wiltshire Both studies collected enough DNA to show that the strain of Yersinia pestis from 1350 C.E. is unlike any modern strain. The Black Death is dead (thanks to evolution) 2011-09-02T17:26:57Z If Yersinia pestis was indeed the cause of the Black Death, why were the microbe’s effects so different in medieval times? Sequencing the Microbe That Causes Bubonic Plague 2011-08-29T20:56:26Z It suggests, the authors argue, that earlier plagues were caused by either a now-extinct strain of Y. pestis or by an entirely different pathogen. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z To better understand how the plague worked, researchers could try to resurrect the Black Death pathogen by modifying the genomes of contemporary Y. pestis strains. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Achtman says that it is possible that Black Death was not spread by rat-dwelling fleas, as Y. pestis is today, but by other animals, which could have enhanced transmission. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Last year, Barbara Bramanti and colleagues collected DNA from mass graves dating to the Black Death, and showed conclusively that the victims were infected with Yersinia pestis. The Black Death is dead (thanks to evolution) 2011-09-02T17:26:57Z But some modern historians and scientists came to doubt that Y. pestis caused these ancient outbreaks. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Just as puzzling, however, is that Y. pestis seems to have changed very little over the past 660 years. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z The PCR might instead have amplified DNA from modern Y. pestis used previously in the lab, or possibly the sequences from a closely related soil-dwelling bacterium. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z Still, those who were already sceptical of the suggestion that Y. pestis caused the Black Death latched on to Gilbert's study. Plague genome: The Black Death decoded 2011-10-26T17:20:52.043Z |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。