The cocci either lays dormant in their lungs or the infection kills them.

球孢子菌要么潜伏在它们的肺部，要么使它们被感染致死。

And so maybe that's cocci's strategy.

也许这就是球孢子菌的策略。

This doesn't happen with urease negative Gram-positive cocci, like Streptococcus pneumoniae or Enterococcus faecalis.

这一现象在脲酶阴性的革兰氏阳性细菌中就不会发生，如肺炎链球菌或粪肠球菌。

The infection caused by cocci goes by many names.

由球孢子菌引起的感染有很多名字。

Fun fact, this is what cocci is doing to people with severe valley fever. While they're alive.

有趣的是，这就是球菌对严重谷热患者所做的事——在他们还活着的时候。

We can use this to differentiate Staph saprophyticus from other gram positive cocci, like streptococci and enterococci, which are catalase negative.

我们可以利用这一特性来区分腐生葡萄球菌和其他革兰氏阳性球菌，如链球菌和肠球菌这一类过氧化氢酶阴性的细菌。

Let's start with some bizarre features of cocci itself.

让我们从球孢子菌本身的一些奇怪的特征开始。

A kangaroo rat or some other desert rodent inhales cocci while digging its burrow.

袋鼠鼠或其他一些沙漠啮齿动物在挖洞时吸入了球孢子菌。

When they die, cocci spread right back into the soil and the system starts again.

当它们死亡时，球孢子菌会传播回土壤中，这个感染系统就又开始了。

And finding cocci in the soil at all has proven difficult.

事实证明，在土壤中找到球孢子菌是很困难的。