All school staff and students aged 12 and over are required to present a negative PCR test result not older than 96 hours to return to their campus in January after the winter break
As per new rules in Hong Kong, if four or more passengers are confirmed to have Covid-19 on arrival from the same place within seven days, that route will be suspended for 14 days
A third dose produced higher levels of neutralising antibodies than those found in individuals who had recovered naturally from the alpha, beta and delta strains of Covid-19