What is influenza A, the type of flu making people so sick right now?
(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the start of ...
What is the difference between flu A and flu B? Experts on the symptoms
We're in the midst of flu season, and the U.S. is facing a wave that's straining hospitals and closing schools. But not all ...
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What is influenza A, the type making people so sick?
Influenza A is further divided into subtypes. You may have heard of H1N1 or H3N2 – those are the two dominant types of ...
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How Long Does It Take for the Flu Shot To Be Effective?
All flu vaccines in the United States are "quadrivalent" vaccines, which means they protect against four different flu viruses: an influenza A(H1N1) virus, an influenza A(H3N2) virus, and two ...
A February flu surge has arrived
Cases of the flu continue to rise nationwide and now appear to be higher than they've been in at least three decades, ...