variants

South African virus variants can resist antibody products; Pfizer / BioNTech vaccine appears to work against UK variant

COVID SCIENCE-S. African virus variants can resist antibodies; Pfizer / BioNTech vaccine appears to work against UK variant

These coronavirus variants keep scientists awake at night

US catches up on genomic sequence to detect Covid variants

‘Memory’ immune cells last six months and can beat ‘super-covid’ variants, the study indicates

Vaccines raise alarm as covian variants multiply

Gottlieb expects new virus variants to dominate infections in the US over five weeks

Why are there new coronavirus variants in the US?

Why are there new coronavirus variants in the US?

Why are there new coronavirus variants in the US?

Anthony Fauci’s ad about covid-19 variants

Countries support the impact of more contagious virus variants.