He was infected with a latent infection.

他被感染了一种潜伏性的传染病。

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Isoniazid preventive therapy is recommended as a health-preserving measure for HIV-infected persons at risk of TB, as well as for those with latent TB infection.

对于有感染结核病风险的HIV病毒感染者和潜在的结核病感染者，通常建议使用异烟肼预防治疗法，以保护健康。

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Thanks to the urbanization of cats (and their feces), almost a third of the human population now has a chronic, latent, and seemingly innocuous Toxo infection.

由于猫科动物的城市化（和它们的排泄物），几乎三分之一的人类已经有慢性的潜在的，但似乎无伤大雅的弓形虫感染。

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