Omicron 'overtaking' Delta in S. Africa

At least 8 confirmed cases of omicron in the US, all mild so far

The Straits Times | What do you know about Covid-19 reinfections

Covid-19: Dr Noor Hisham explains on child infection, reinfection for recovered patients

No evidence that recovered Covid-19 patients are immune to re-infection, says Health DG

Covid-19: Antibodies of recovered patients cannot guarantee immunity

Recovered Covid-19 patients risk getting re-infected if they defy ministry's advice