This article breaks down the differences between influenza A and B, their symptoms, severity, and prevalence during the current flu season. It also discusses flu vaccines, prevention measures, and treatment options.
, flu cases and hospitalizations are ticking upwards. And the vast majority of the country is experiencing high, very high or moderate flu activity, according to the most recent estimates from the The current flu season is dominated by influenza A variants, Dr. Sean T. Liu, associate professor of medicine at the Icahn School of Medicine at Mount Sinai, tells TODAY.com.
Flu A is generally more severe, Ray says, and only influenza A has been known to cause pandemics — including the 1918 flu pandemic., influenza B only infects humans, he explains, “so it changes more slowly and it tends to be milder.” But on an individual level, influenza B infections have the potential to become just as severe.
In fact, experts sometimes use the term"flu-like illness" to refer to other diseases because"influenza is sort of the prototype" of a fever-causing respiratory illness, Ray explains.The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea and nausea, especially among children.
FLU INFLUENZA A INFLUENZA B VIRUS SYMPTOMS TREATMENT PREVENTION VACCINE
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