Someone somewhere in England is infected with what is understood to be a more infectious variant of COVID-19, and they may not even know it yet. Among the most worrying factors is the potential for reinfection with the Brazilian variant among people who have already had COVID-19. “We don’t have the data yet, but by analogy with the South African variant, to which it has similarities, the vaccines aren’t as effective. Failing to do so could put Boris Johnson’s four-step roadmap for lifting lockdown – and reopening shops, restaurants, pubs and clubs – in jeopardy. Advertisement“The roadmap has four tests that must be met, and two of them are about reduced transmissions and the risk posed by variants,” Young says.