TWO strains of the killer coronavirus are spreading, study claims

Researchers in Beijing and Shanghai found the more aggressive strain appeared to have evolved from the other but has become less common since early January, with the older version returning. Source: TWO strains of the killer coronavirus are spreading, study claims senior1938voice comment to readers: This is a long, very informative read, answers questions that … Continue reading TWO strains of the killer coronavirus are spreading, study claims