A new "double mutant" variant of the coronavirus has been detected from samples collected in India.
The European Union has warned it could ban exports of vaccines produced there, as it struggles to speed up its vaccination rollout.
Results from the long-awaited US trial of the Oxford-AstraZeneca Covid vaccine are out and confirm that the shot is both safe and highly effective.
The Indian city of Mumbai is to roll out mandatory coronavirus tests in crowded places as the country grapples with a rise in infections.
The NHS in England was ill-prepared for the seismic shock of the Covid pandemic, a hospital chief has said.
The disruption in healthcare services caused by Covid-19 may have led to an estimated 239,000 maternal and child deaths in South Asia, according to a new UN report.
UK experts say there will be a big increase in the number of people being offered Covid vaccinations in the coming days.
A powerful hallucinogenic drug known for its part in shamanic rituals is being trialled as a potential cure for depression for the first time.
A simple skin-swab test could be used to help diagnose the degenerative brain condition Parkinson's disease, UK scientists say.
UK scientists have discovered a key inflammatory protein that rises in the blood of patients with severe Covid-19.
