Pfizer, AstraZeneca vaccines help prevent hospitalization, Scottish data shows

( - image credit) New data out of Scotland indicates that two COVID-19 vaccines have great efficacy even when the time between doses is stretched out. The Oxford AstraZeneca and the Pfizer-BioNTech vaccines were found to be more than 80 per cent effective at preventing hospitalizations after just one shot.DTV slug: adhopia-vaccine-effectiveness-022221