The CDC is expected to ease its guidelines on masking in an announcement on Friday after a number of states this month have announced plans to lift indoor mask mandates.
(CNN) -- On the heels of concerning new lab and animal experiments suggesting that BA.2 may be capable of causing more severe disease than the original Omicron strain, two new studies are helping to show how well human immunity is defending against this strain in the real world.
(CNN) -- Plummeting COVID-19 case counts across the United States are leading to lifted mask mandates and more conversations about steps toward normalcy -- but more people are dying of the coronavirus now than during most points of the pandemic.
U.S. health officials are optimistic, albeit cautiously, the country has turned the corner on the unprecedented wave of infection caused by the omicron COVID variant as new cases plummet 90% from a pandemic record set just five weeks ago.