Flu season is from October to May. The Philadelphia Department of Public Health encourages you to keep vaccinating: continue offering the flu vaccine to your patients.

Keep vaccinating patients until flu season ends, or your flu vaccines expire.

The flu is most dangerous for elderly people, young children, and people with compromised immune systems – the most vulnerable people we know. Giving flu vaccines to healthy people helps protect unhealthy and vulnerable people.

From October through December, there have been 6,221 cases of the flu in Pennsylvania – and 6 deaths, including one in Philadelphia. You can find up-to-date data on the Health Information Portal and more information at the CDC’s Seasonal Influenza Health Advisory.

It’s too soon to tell if this is shaping up to be a severe, average, or mild flu season – but cases are rising. Flu cases usually peak in January or February, so it’s important to protect people now.