Concept image of COVID-19 cells (variants Gamma, Delta, and Omicron). For a long time, scientists couldn't figure out where Omicron had come from. Now, studies appear to point to one specific group. Matt Anderson Photography/Getty Images hide caption
The FDA recently authorized the iHealth at-home test for the SARS-CoV2 virus and two strains of the flu virus. iHealth Labs, Inc hide caption
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
Gustavo Perez got his influenza vaccine from pharmacist Patricia Pernal in early September during an event hosted by the Chicago Department of Public Health at the city's Southwest Senior Center. This year's flu season may strike earlier and harder than usual, experts warn. A flu shot's your best protection. Scott Olson/ Getty Images hide caption
The new COVID boosters rolling out this month represent a shift in strategy, said White House COVID-19 Response Coordinator Dr. Ashish Jha during a press briefing. The goal now will likely be to roll out new boosters annually. Anna Moneymaker/Getty Images hide caption