German authorities are expected to extend lockdown measures again on Monday and possibly tighten some restrictions as they face a steady rise in new coronavirus infections.
AstraZeneca’s Covid-19 vaccine is 80 percent effective at preventing the disease in the elderly and does not increase the risk of blood clots, the biotech firm […]
Scientists at the University of Oxford have released pre-print data measuring the level of antibodies that can neutralize—or stop infection from—variants that are circulating in South […]