黄热病很难诊断，尤其是在病程初期。

Yellow fever is difficult to diagnose, especially during the early stages.

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初期感染经诊断使用青霉素治疗后可预防风湿热发作。

Penicillin given when the initial infection is diagnosed can prevent it.

youdao

初期感染经诊断使用青霉素治疗后可预防风湿热发作。

Penicillin given when the initial infection is diagnosed can prevent it.

youdao