They calibrate our immune systems, ward off pathogenic bacteria, even affect our weight.

它们帮助我们调整免疫系统、抵御病原菌、甚至还会影响到我们的体重。

A microorganism can be pathogenic, or not.

微生物可以是致病的，也可以不是。

It's the rare, pathogenic strains that can cause bloody diarrhea, kidney disease, or death.

导致出血性腹泻、肾病或死亡的是极少数致病株。

YURKEVICH: The highly pathogenic avian influenza, or avian flu, is largely to blame.

高致病性禽流行性感冒（禽流感）很大程度上来讲是罪魁祸首。

They also grew a batch of pathogenic E. coli bacteria, the kind that cause traveler's diarrhea.

他们还培养了一批致病性大肠杆菌，这是导致旅行者腹泻的一种细菌。

If as scientists have said it has only changed the pathogenic genes of AIDS without changing other genes.

如果说就像科学家说的，它只改变了艾滋病的致病基因，而没有改变其他基因。

The 1918 virus instead could proliferate even in the absence of trypsin, making it more pathogenic than other viruses.

1918年的病毒甚至在没有胰蛋白酶的情况下也能增殖，这使得它比其他病毒更具致病性。

After that they all got a dose of pathogenic E. coli — the strain behind last year's spinach outbreak.

再然后，所有老鼠都注射了致病性大肠杆菌——去年毒菠菜事件后的菌株。

First is the PZ, or pathogenic zombies.

首先是 PZ， 即致病僵尸。

These kinds of cells need to go crawling around in our bodies in order to find invaders like pathogenic bacteria.

这些细胞在我们身体里四处爬行，以便发现诸如病菌这样的入侵者。

To study how a pathogenic strain of E. coli behaves in this entire system, researchers had to build a replica.

为了研究大肠杆菌致病菌株在整个系统的行为，研究人员不得不复制了系统。

For example, you may have heard of pathogenic bacteria like staph evolving antibiotic resistance.

例如，您可能听说过葡萄球菌等致病菌会产生抗生素耐药性。

With pathogenic fungi becoming ever more resistant to existing anti-fungals, dung beetles have never looked more attractive.

随着致病真菌对现有抗真菌药物的抵抗力越来越强，蜣螂变得前所未有的有吸引力。

When pathogenic factors attack the body, healthy qi in the body naturally fights against them.

当致病因素攻击身体时，体内的正气会与它们作斗争。

But you should keep in mind that far less than one percent of microbial diversity is actually pathogenic to humans.

但你应该记住，只有不到百分之一的微生物多样性实际上对人类是致病的。

These changes may increase pathogenic organisms or their activity causing a series of oral infectious diseases such as dental caries or periodontal diseases.

这些改变可能会增加致病微生物的数量或提高其活性，从而导致诸如龋齿、牙周疾病等一系列口腔感染性疾病。

Working with a team of colleagues, he then exposed them to nine strains of pathogenic fungi that cause serious problems in agriculture.

随后，他与一个同事团队合作，让他们接触了九种会给农业带来严重问题的致病真菌。

About 330,000 birds in poultry farms have been killed in Kazakhstan due to the highly pathogenic H5N8 bird flu in seven regions across the country.

由于H5N8高致病性禽流感在哈萨克斯坦七个地区蔓延，家禽饲养场约33万只家禽感染死亡。

Studies such as this are good news, promising an unprecedented rapid route towards novel treatment options for some of the scariest pathogenic threats we currently face.

诸如此类的研究是好消息，有望为我们目前面临的一些最可怕的致病威胁提供前所未有的快速治疗方案。

Beyond their printed dates, ready-to-eat salads, deli meats, and unpasteurized cheeses are more likely to carry pathogenic bacteria that can slip past a smell or taste test.

除了印刷的日期之外，即食色拉、熟食肉类和未经巴氏消毒的奶酪较有可能携带无法在嗅觉或味觉测试中被发现的病原细菌。