COVID-19 infections continue to rise, driven by new and more infectious omicron subvariants, waning immunity from both vaccines and previous infections and fewer people masking up, health officials said at a White House briefing Wednesday.
About a third of Americans now live in an area with medium or high COVID-19 rates, with reported cases up 26% from last week, said Dr. Rochelle Walensky, director of the Centers for Disease Control an Prevention.