Just as it is for marathoners who’ve completed a 26-mile run, or shrubs that have gone without water in a heatwave—exhaustion is an unavoidable fact of life. Dogs get exhausted after herding sheep;...

India announced Tuesday it will open its vaccination drive to all over-45s from April 1 in a bid to boost its massive but flagging inoculation drive as infections rise. India has so far vaccinated nearly...

The United States’ Covid vaccination drive entered a new phase Thursday as thousands of pharmacies were scheduling shots, but a wave of optimism brought about by falling cases could soon be tested...

Despite a steady rise in coronavirus cases, Pakistan on Monday launched a five-day vaccination campaign against polio amid tight security, hoping to eradicate the crippling children’s disease this...

Nurses cheered on Tuesday as an elderly British grandmother became the first person in the Western world to receive an approved vaccine against COVID-19, at the start of a marathon campaign health officials...

Coronavirus tests that deliver results in 15-30 minutes are to be rolled out across the United States and in scores of poorer countries, as health authorities worldwide try to get a handle on a disease...