Brazil

Over 600 variants of COVID-19 cases identified in the US: CDC

Gout could reduce Covid hospital stays, new research finds World news

I’m worried that people will be re-infected with some of the new coronavirus strains

Astra Shot shows 82% efficacy with the two-dose range in the UK

Britain’s Covid Strain is becoming a mutation that raises concerns about the vaccine

The virus variant in the UK has developed with regard to the new mutation in a small number of cases

Dr. Fauci warns that previous COVID-19 infection may not protect you from new strains

Undetected mutant COVID variants are likely to run in the US, health officials say

What do we know about all the variants

Researchers in Brazil find people infected with two different strains of coronavirus