According to the Australian Health Protection Principal Committee’s most recent guidance, people may contract Covid-19 as soon as 28 days after getting over the virus. More than 12 weeks after the initial infection, a case was considered to be reinfection before. The committee said the Omicron subvariants BA.4 and BA.5 “are associated with increased immune escape and we are likely to see rates of reinfection rise among those who have previously been infected with an earlier Covid-19 variant, and those who are up to date with their vaccinations”. The BA.4 and BA.5 strains are starting to take over Australia as a whole, and they have already been established as dominant…