We wanted to avoid new infection sources.

我们希望不要出现新的感染源。

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Antibiotic medicines can cause diarrhea, which may be a sign of a new infection.

抗生素药物可能导致腹泻，这说明你有可能又受到了新的感染。

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Over half of the males reporting a new infection were under 25, as were two-thirds of females.

报告的男性新增病例中有一半以上是25岁以下的年轻人，在女性中这一比例是三分之二。

youdao

"We found that there's no real difference in device infection or device malfunction when you compare it to new pacemaker implantation."

VOA: special.2010.06.02

Papua New Guinea has one of the fastest growing HIV infection rates in the world.

VOA: standard.2009.04.04

"There may be either a new cause for gastric cancer in that population or perhaps some difference in their Helicobactor Pylori infection that's contributing to a new risk for gastric cancer."

VOA: standard.2010.05.12

The first is the idea of pre-exposure prophylaxis in other words, giving ARVs to uninfected people to clobber any new infection before it can get going.

ECONOMIST: The XVIIth International AIDS Conference

Today marks the a year since the last case of new polio infection in India a major step toward eliminating the virus there.

FORBES: Bill Gates On India's First Polio-Free Year

"Based on the incidence estimates released last month, we already know that African Americans overall accounted for 45 percent of new HIV infection in 2006, while representing only 12 percent of the U.S. population, " Wolitski said.

CNN: CDC: Blacks, gays at high risk for HIV infections