The World Health Organization said Friday that the spread of Omicron was down to a combination of factors including the make-up of the Covid-19 variant and increased social mixing. Maria Van Kerkhove, the WHO’s Covid-19 ...

US health authorities on Monday approved Pfizer’s Covid-19 booster shot for children as young as 12, and reduced the wait time between initial vaccination and an extra dose from six months to five, for all ...

British pharmaceutical giant AstraZeneca said Thursday that a third, or “booster”, dose of its Covid-19 vaccine Vaxzevria “significantly” lifted antibody levels against the Omicron strain in a laboratory study. “Vaxzevria significantly boosted levels of antibodies ...

Online desk: New Zealand authorities on Monday said they had linked a 26-year-old man’s death to Pfizer Inc’s COVID-19 vaccine after the person suffered myocarditis, a rare inflammation of the heart muscle, after taking his ...