Two U.K. studies released Monday showed that COVID-19 vaccination programs are contributing to a sharp drop in hospitalizations, boosting hopes that the shots will work as […]
Portugal’s official daily number of new COVID-19 cases on Monday dropped below 1,000 for the first time since early October, amid a national lockdown and just […]
When you slip into sleep, it’s easy to imagine that your brain shuts down, but University of Michigan research suggests that groups of neurons activated during […]