Sentences with phrase «dominant circulating strain»

The Food and Drug Administration chose the same vaccine formulation in 2017 and 2016, in part because the dominant circulating strain stayed the same.

«The original strain used as a reference for the vaccine was basically a perfect match to the dominant circulating strain, and the predicted efficacy would have been around 47 percent.

Not exact matches

Although the K13 C580Y strain is becoming dominant in parts of the region, the group said in a carefully worded report in March, that is not the case everywhere in the Greater Mekong, where several lineages are circulating more or less in equilibrium.

That's because multiple strains circulate every year, and it's difficult for scientists to predict perfectly which strains will be dominant.