Leslie Brown Simmons, 68, of Maywood, receives a Pfizer vaccine booster shot against COVID-19 at Cook County’s Forest Park in January. Unlike previous boosters, the new ones specifically target the now-common strains of the omicron variant. (Ashlee Rezin / Sun-Times)
The new COVID-19 booster shots that target the strains of the virus that are now most prevalent should be available around Chicago this week, after the U.S. Centers for Disease Control and Prevention gave them the green light.
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