British Prime Minister Boris Johnson said on Friday the new English variant of COVID-19 may be associated with a higher level of mortality although he said evidence showed that both vaccines being used in the country are effective against it. Johnson said that the impact of the new variant, which is already known to be more transmissible, was putting the health service under “intense pressure”. “We’ve been informed today that in addition to spreading more quickly, it also now appears that there is some evidence that the new variant – the variant that was first discovered in London and the southeast (of England) – may be associated with a higher degree of mortality,” he told a news briefing. Johnson said however that all the current evidence showed both vaccines remained effective against old and new variants. Chief Scientific Adviser Patrick Vallance said the evidence about mortality […]