According to the most recent CDC data, a subvariant of omicron called XBB.1.5 is responsible for 41% of cases in the country as we experience a spike in COVID-19 cases following the holiday season.
According to the most recent CDC data, a subvariant of omicron called XBB.1.5 is responsible for 41% of cases in the country as we experience a spike in COVID-19 cases following the holiday season.