Professor Salim Abdool Karim, an adviser to the South Africa government, said on Monday that South Africa will start its immunization campaign with Johnson & Johnson's COVID-19 vaccine after data showed AstraZeneca's shot offered minimal protection against mild-to-moderate illness from the dominant local virus variant.
Pfizer Is Studying the Effects of a Third COVID-19 Vaccine Dose.
Two doses of Pfizer's COVID-19 vaccine
have proven to be..
CNN’s Nick Watt reports that winter storms have delayed delivery of coronavirus vaccines as experts express concern about the..
