Then, when that mosquito bites another human, the sporozoites are injected too, and travel to the liver to hunker down, grow, and multiply.

然后， 当这只蚊子个人类时， 子子也会被注入，并前往肝脏潜伏、生长和繁殖。

They infected mosquitoes with the genetically-engineered sporozoites and let them snack on the volunteers’ forearms. And none of the people in the trial developed malaria, so that’s good!

他们让蚊子感染了基因工程改造过子子，并让蚊子叮志愿者前臂。试验没有人患上疟疾，这很好！

Knocking out just three of the 5000 genes in the P. falciparum genome can prevent sporozoites from maturing and reproducing, so they can’t infect the bloodstream.

敲除恶性疟原虫基因组5000个基因三个，就可以阻止子子成熟和繁殖，从而无法感染血液。

Each sporozoite produces as many as 30,000 mature parasite cells called merozoites, which spread through the bloodstream, burrow into red blood cells, and cause a full-blown infection.

每个子子可以产生多达30000个成熟寄生虫细胞， 称为裂殖子，这些裂殖子会通过血液扩散， 钻入红血细胞， 并引发全面感染。

These combine and grow to become the immature form of the parasite, called a sporozoite.

这些结合并生长成为寄生虫未成熟形式，称为子子。