Note: Initial infection with HIV may produce no symptoms.

注意：HIV感染早期一般不会有症状。

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Following initial infection, approximately 80% of people do not exhibit any symptoms.

最初被感染后，大约80%的人并不会出现任何症状。

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The result showed there is the resistance to spread as well as to initial infection of Fusarium head blight in barley.

结果表明，大麦赤霉病抗性除了抗初侵染类型外还存在抗扩展类型。

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The arrests themselves, in Mr Drucker's telling, represent an initial infection of sorts.

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The virus is thought to have originated in bats, but how the initial infection gets passed to humans remains a mystery.

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Initial infection is with a drive-by download on an otherwise innocent site.

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