What to know about the fast-spreading BA.4, BA.5 subvariants

The pair of omicron subvariants are now the dominant strains in the U.S.

By Claire Hyman, Stephanie Kim
COVID test
A patient undergoes a nasal swab to check for COVID-19 at a testing centre in Soweto, South Africa, Wednesday, May 11, 2022. Denis Farrell/Associated Press
COVID test
A patient undergoes a nasal swab to check for COVID-19 at a testing centre in Soweto, South Africa, Wednesday, May 11, 2022. Denis Farrell/Associated Press

What to know about the fast-spreading BA.4, BA.5 subvariants

The pair of omicron subvariants are now the dominant strains in the U.S.

By Claire Hyman, Stephanie Kim
WBEZ brings you fact-based news and information. Sign up for our newsletters to stay up to date on the stories that matter.

The BA.4 and BA.5 omicron subvariants were responsible for 70% of new COVID-19 cases in the U.S. last week, according to the Centers for Disease Control and Prevention. Plus, new data shows one in five American adults who had COVID-19 are experiencing long-haul symptoms.

Reset checks in with an infectious disease specialist for the latest on COVID-19 in our region.

GUEST: Dr. Mia Taormina, infectious disease specialist with Duly Health and Care