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A Poorly Matched Flu Shot Could Mean a Bad Flu Season on Top of a Covid Surge – NBC New York

The present flu vaccines seem like a dangerous match for the dominant pressure to this point this influenza season, new analysis suggests, main specialists to warn that the United States might be in for a dangerous flu season, on prime of what’s already shaping as much as be one other devastating surge of Covid cases

Before every flu season, scientists should predict which strains would be the most typical, and design a flu shot to match these predictions. This 12 months’s flu shot contains 4 strains. 

But one, a model of the H3N2 pressure of influenza, is popping out to be a dangerous match for the model of H3N2, referred to as 2a2, that’s in broad circulation within the U.S., in response to a research from Scott Hensley, a professor of microbiology on the University of Pennsylvania.  Hensley’s research was posted Wednesday to a preprint server, which means it has not but been peer-reviewed. 


So far this season, the H3N2 pressure makes up for a minimum of 99 p.c of all flu instances within the U.S., according to the Centers for Disease Control and Prevention, although the company doesn’t specify what number of of these instances are attributable to the 2a2 model of the pressure.

The flu shot is never a perfect match for the influenza viruses that find yourself in broad circulation, besides, the vaccine nonetheless reduces a particular person’s threat of extreme sickness from the flu. 

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