Sentences with phrase «widely circulating strain»
These included the past two flu seasons in which vaccines offered only limited protection against the most widely circulating strain of influenza A.
https://www.sciencedaily.com/ Not exact matches
ST. JULIAN»S, MALTA — The most aggressive of the circulating human flu strains is fast becoming resistant to a widely used class of flu drugs, researchers reported here last week at the Second European Influenza Conference.