The new BA.5 is one of the “worst” subvariants circulating the country, infecting even those who have immunity from previous infections and vaccines.
Dr. Eric Topol, founder and director of Scripps Research Translational Institute, called the new subvariant “the worst version of the virus that we’ve seen” in an online post in June. He cited its advanced ability to escape immunity and high transmission, in contrast to the original omicron and its family variants, including BA.2 and BA.4.
California’s seven-day test positivity rate is at 16.1%, as of July 12, an increase from 4.3% on May 11, according to the state’s public health dashboard. Reported COVID case numbers have remained steady with 36.1 new cases per 100,000, but hospitalizations with confirmed cases have jumped from the last week — at more than 4,000.