News Snapshot:
MADISON (WKOW) -- Wisconsin's Department of Health Services said the BA2 Omicron subvariant is now responsible for the majority of new COVID-19 cases in the United States. Case levels are slowly increasing, but we haven't seen a major surge in the U.S. since January. China's largest city, Shanghai, is the epicenter of the latest Omicron surge and doctors report several factors have impacted this outbreak like vaccine type. China primarily uses Sinopharm and Sinovac vaccines. "They're not nearly as effective as the mRNA vaccines, and those are the ones that they've been exclusively using in China," said Dr. Ottenbaker, SSM...
