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The Flu Nearly Reached Epidemic Levels This Season

A specific strain of influenza A is especially prominent.
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The Flu Nearly Reached Epidemic Levels This Season

Cases of the flu were close to epidemic levels at the end of 2017, according to the Centers for Disease Control and Prevention.

Specifically, cases of H3N2, a strain of influenza A, are high. H3N2 is especially dangerous and can be harder to contain.

A CDC official told "Good Morning America" this flu season reached its peak about a month earlier than normal. He said recent weather conditions and holiday travel could be to blame.