This may have important significance for protection in the early period of infection.

在感染早期可能具有重要的抗结核保护作用。

youdao

Method Tympanoplasty was operated on 32 chronic suppurative otitis media patients in the period of infection.

方法对32例慢性中耳炎患者行鼓室探查和鼓室成形术。

youdao

This early period of infection represents the time of greatest infectivity but transmission can occur during all stages of the infection.

这一最初感染期感染性最强，但在各感染期都可能会传播艾滋病毒。

youdao

In the same period of 2001 there were 79 confirmed cases of group C meningococcal infection and three deaths.

BBC: Syringe

So far in 2012 there've been 2, 398 cases of the bacterial infection in the UK, compared with just 272 in the same period last year.

BBC: Whooping cough makes a comeback