An experimental vaccine given during pregnancy has shown early promise for protecting infants from a potentially severe respiratory infection. The vaccine, being developed by Pfizer, aims to protect babies from respiratory syncytial virus, or RSV. Most of the time, RSV causes nothing more than a cold. But it can lead to serious lung infections in…  read on >  read on >

COVID-19 death rates are significantly higher in U.S. counties that remain largely unvaccinated than in those where more people have gotten their shots, according to a new study. The findings add to evidence that vaccination among individuals can prevent infection and illness on a much larger scale, University of Oxford professor Christopher Dye wrote in…  read on >  read on >