Flu Season Arrives Early in Chicago: Get Your Shot Now!

Flu season has made an early arrival in Chicago, with hospitals observing cases about a month sooner than typically expected. Medical professionals across the city are urging those who have not yet received a flu shot to do so promptly. Experts note that the vaccine requires two weeks to reach its maximum effectiveness.

Getting vaccinated now will provide protection throughout the majority of the winter months. While an early start doesn't necessarily predict a more severe season, it underscores the immediate need for protection. Factors such as weather and social interactions can influence the flu's onset. Current predictions suggest the flu shot should offer solid protection for the 2026-27 respiratory disease season, with expected peak hospitalizations for COVID-19, influenza, and RSV similar to last year.