Study: B117 variant 45% more transmissible than wild-type COVID-19A study yesterday in Cell Reports Medicine shows the B117 variant, first identified in the United Kingdom in December, is 45% more transmissible than the original, wild-type COVID-19 virus, but Pfizer's mRNA vaccine protected elderly populations against infections caused by the variant.The study was based on cases documented in Israel from Dec 6, 2020, through Feb 10, 2021.
Within 3.5 weeks of detection, B117 was the dominant strain in Israel. But the nation took a three-pronged approach to controlling a spike in cases, including expanded polymerase chain reaction (PCR) testing, focused surveillance in nursing homes, and prioritized vaccination of those 60 years and older