The phrase "circulating strains" refers to specific types or variations of viruses or bacteria that are currently spreading and causing infections within a specific population or community.
Sentences with «circulating strains»
Therefore it is incredibly important that people get vaccinated each year to protect against current circulating strains of the flu virus. (sciencemediacentre.org)
These factors, combined with the presence of some of these substitutions in circulating strains, make a virus evolving in nature a potentially serious threat. (science.sciencemag.org)
Today's flu vaccines make the immune system produce antibodies that recognise structures on the surface of the virus to prevent infection with the most prevalent circulating strains. (sciencedaily.com)