An estimated 2.5 billion people live in areas where Plasmodium vivax is common.

估计有 25 亿人生活在间日疟原虫常见的地区。

Without it, vivax parasites cannot enter the blood cells.

没有它，间日寄生虫就无法进入血细胞。

One of the most famous and nasty parasites out there is Plasmodium vivax, carried by mosquitoes, it's responsible for millions of cases of malaria a year.

其中最臭名昭著的寄生虫就是蚊子身上携带的间日疟原虫，它导致一年有数百万例的疟疾病例。

They are seeing an increase in infections from the plasmodium vivax parasite. An estimated 2.5 billion people live in areas where plasmodium vivax is common.

他们看到间日疟原虫寄生虫感染增加。估计有 25 亿人生活在间日疟原虫常见的地区。