Conclusion The attenuated measles virus strain is different from strong virus strain.

结论麻疹病毒的减毒株与强毒株存在差异。

youdao

Finding this out might help us find a way of fighting the present H5N1 avian flu virus strain.

弄清这个问题将有助于我们寻找到一条途径去抗击目前的H5N1禽流感病毒株。

youdao

Further analysis established that they did have the same Russian virus strain, not commonly found in Australia.

进一步分析证明，她们有相同的俄罗斯病毒株，这种病毒株在澳大利亚很罕见。

youdao

Mexico has the highest number of deaths and infections of the flu, which is caused by a new strain of the influenza A H1N1 virus.

VOA: standard.2009.05.08

To slow the spread of the virus and relieve the strain on the country's health system, the government has set up a national pandemic flu service, where people who suspect they're infected can get a diagnosis and prescription for antiviral drugs over the phone or Internet.

VOA: standard.2009.07.31

Donaldson said scientists are yet to definitively trace the origins of the virus strain that Britain is currently battling to contain and eradicate.

CNN: Foot-and-mouth virus: A global dilemma

While the new virus strain in the recent outbreak has affected humans, Canadian officials said it has shown up at a pig farm in Alberta, Canada.

CNN: Confirmed cases of H1N1 virus approach 900

On Saturday, the virus strain was found in a herd of swine in Alberta, Canada, and the animals may have caught the flu from a farmer who recently returned from a trip to Mexico.

CNN: Hysteria over swine flu is the real danger, some say