Health

A vaccine jointly developed by Pfizer and BioNTech was 90 percent effective in preventing Covid-19 infections in ongoing Phase 3 trials, the companies announced...

More than 120,000 coronavirus cases were reported in the US in the past 24 hours, smashing a daily record set the day before, according...

New Delhi, the capital city with the worst air quality worldwide, suffered its most toxic day in a year on Thursday, recording the concentration...

India raced ahead with work on its coronavirus vaccine while Britain's AstraZeneca said its deliveries were running "a little bit late" as countries around...

The United States set a one-day record for new coronavirus cases on Wednesday with at least 102,591 new infections and as hospitals in several...

Are children a major source of contagion for Covid-19? Ten months into a pandemic that has claimed 1.2 million lives experts are still divided...

The government on Monday attributed the surge in active COVID-19 cases in Delhi to the festive season, greater movement of people and laxity in...