Health officials and vaccine makers call for boosters after studies show Pfizer vaccine is less effective against Omicron, but data on breakthrough cases suggest the vaccine hasn’t been effective against other strains, either.
The number of new positive cases of COVID-19 reported in South Africa has continued its downward trend despite increased testing, according to South African National Institute of Communicable Diseases (NICD) data.
Epidemiologist compiles massive trove of research studies demonstrating "that Covid-19 lockdowns, shelter-in-place policies, masks, school closures, and mask mandates have failed in their purpose of curbing transmission or reducing deaths."