The infective test with the pathogenic virus of hemorrhage proved that the cell strain AHZC 88 was not infected with the hemorrhage virus.

经病原病毒的人工侵染等试验表明，AHZC 88细胞不受草鱼出血病病毒感染。

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This is the first reported incidence of this highly pathogenic virus on the continent, where people are already enduring the HIV/AIDS pandemic and other serious infectious diseases.

这是这种高致病性病毒在该大陆发生的首次报告，非洲大陆的人民已经在忍受着艾滋病毒/艾滋病的大流行和其它严重的传染病的肆虐。

youdao

For people in contact with live birds, the greatest concern relates to the risk of infection with highly pathogenic avian influenza (HPAI) virus in areas where the disease is endemic.

对于接触活禽的人群，在高致病性禽流感呈现地方性流行的地区最令人担忧的就是感染这种疫病的风险。

youdao

So maybe you could figure out how to use what we know about molecular biology, to engineer a new virus that's still immunogenic, but not pathogenic any longer.

也许你能指出如何使用,分子生物学的有关知识,来设计一个既能产生免疫性,但又不再有致病性的新病毒

耶鲁公开课 - 生物医学工程探索课程节选

It is circulating in poultry stocks, but is considered a "low pathogenic" virus that is not sickening birds.

NPR: Bird Flu 101: How Bad Is The New H7N9 Strain?

In this research the scientists created a synthetic viral shell, but lacking its pathogenic RNA interior - the genetic material the virus uses to replicate itself.

BBC: Synchrotron yields 'safer' vaccine