Colorado doctors report strange spring flu season


AURORA, Colo. (KDVR) – Flu season in Colorado typically peaks between December and February, but this year it peaked in the spring.

“We actually saw a huge spike in cases in May, and that was influenza A,” said Dr. Michelle Barron, senior medical director of infection prevention at UCHealth. “There’s A and B. Usually we see B in the spring, not A, and it behaved much like what we normally see in December and January.”

Barron said there were three to four times more cases in April and May than in December and January – “which again is the opposite of what we normally see, which is why it was so striking,” she said.

There could be several reasons for the spring peak. Barron pointed out that many mask mandates have ended and people are back to work and school. Additionally, she said many people got their flu shots around September and any protection may be gone.

So if you’re feeling sick with a fever, body aches, or a cough, and you test negative for COVID-19, it could still be the flu.

“I think flu season is probably now officially over, but you generally know that after flu A we see flu B, so who knows. It will be an interesting summer to see if he decides to appear,” she said.


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