Flu cases are ticking up, what you need to know about influenza B

April 5, 2023

As fears of a “tripledemic” die down, health officials say they are seeing an uptick of a particular strain of the flu: influenza B.

According to data from the Centers for Disease Control and Prevention, the percentage of tests that are positive for influenza B has increased from 0.12% the week ending Jan. 7 to 0.36% the week ending March 25.

Meanwhile, over the same period, the percentage of tests positive for influenza A — the most common flu strain — has declined from 8.58% to 0.58%.

Meanwhile, states are showing similar trends. In New York, as of the week ending March 25, of the 2,013 samples subtyped, 64.16% were identified as influenza B,Ā state health department dataĀ shows.

Read more at ABC.

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