Outbreaks

Covid-19 variants float across India, but no one knows how many

The Chinese economy grew by more than 18% in the first quarter

Annual Covid-19 vaccine booster shots likely to be needed, says Pfizer’s CEO

Blood clots are more likely after Covid-19 than after vaccination, research shows

Pfizer, Moderna vaccines can also cause ultra-rare blood clots, study claims

Unemployment claims hit a new pandemic low last week

CDC identifies a small group of Covid-19 infections in fully vaccinated patients

Fentanyl has spread west and overdose is increasing

Variants feed Covid-19 peak, but scientists are voting optimism for vaccines

Denmark will be the first country to permanently discontinue use of the AstraZeneca vaccine