How COVID-19 Vaccines and Infections Are Tweaking Our Immunity A study shows our immune systems may be getting better at protecting against new variants. TIME

Your immune system may be getting smarter every time you encounter COVID-19, a new study suggests. After getting vaccinated and infected, the immune system generates broader defenses against the virus, including against new variants.

After winter holidays, respiratory virus activity continues to build across the US | CNN The first look at trends following most of the winter holidays shows that seasonal virus activity remains elevated and continues to rise across the United States, according to data from the US Centers for Disease Control and Prevention. As infections and hospitalizations mount, the CDC continues to emphasize the importance of vaccination — and the value of treatment to avoid severe disease. Deidre McPhillips CNN

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