皮肤接触感染可能是传染途径之一。

One channel of infection may be the skin contact.

youdao

限制接触感染源?。

Limit contact with infectious agents.

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然而，医院的官方员并不认为许多患者被接触感染。

However, hospital officials do not believe that that many patients were exposed.

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You would first get exposed in children-- in childhood and then at a point when you're susceptible to the disease.

在儿童期这个较容易受病毒感染时期,第一次接触该病毒,就会引起发病

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