Since 2006 all members of staff who deal with patients have had to undergo compulsory blood tests to check whether they have the virus.

自2006年以来，直接接触病人的所有医护人员都必须验血，检查是否感染HIV病毒。

youdao

Did you check for a virus on your system?

你对你的系统做了病毒检查吗？

youdao

Cyclic Redundancy Check, detects files that are corrupt or possibly infected by a virus.

循环冗余校验，侦测档案是舞弊或可能感染了病毒。

youdao

There's no known cure for hepatitis B, although the virus can be kept in check with anti-viral medicines.

VOA: standard.2010.07.26

The team's approach, which IAVI Vice President Wayne Koff calls very promising, makes use of a three-step process to teach the immune system to keep the HIV virus in check.

FORBES: Latest Hope For An AIDS Vaccine

It means some delay while they check and allow virus-free material to go through.

CNN: LKY On Asia Ahead

But a quick check of her records verified that five different tests had detected the virus in the days and weeks following her birth.

WSJ: Baby Cured of HIV for the First Time, Researchers Say