covid immunity

Immunity Americans acquired through vaccination or via prior infection with the SARS-CoV-2 virus may account for the lighter than expected COVID surge in the U.S. this winter, researchers say. David Ryder/Getty Images hide caption

Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2. KATERYNA KON/SCIENCE PHOTO LIBRA/Getty Images/Science Photo Libra hide caption

Getting vaccinated during pregnancy is one of the best ways to make sure your vulnerable newborn benefits from your antibodies to the coronavirus, doctors say. ©fitopardo/Getty Images hide caption

Testing your antibody levels to get a sense of your COVID-19 protection may be tempting, especially as you wait for a booster shot. But scientists say these widely available tests can't tell you the full story, at least not yet. Naveen Sharma/SOPA Images/LightRocket via Getty hide caption