Scientists around the world are on the lookout for new COVID-19 variants, which are caused by mutations of the virus when its replication machinery makes an error. Experts say these mutations and the new variants are normal and to be expected.
In recent months, so-called variants of concern have been identified in the U.
– PUB DATE: 1/28/2021 12:00:00 AM – SOURCE: ABC News
Source: SEAFC National Fire News