UK braces itself for 'tidal wave of Omicron'

Free Covid-19 vaccines: We will not be safe until everyone is safe, says Khairy

Coronavirus gives five months immunity – UK study

The Straits Times | Singapore mum gives birth to baby with Covid-19 antibodies

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

Antibody-based test kits cannot be used to diagnose Covid-19, says Health DG

Madonna caught Covid-19 on tour

Covid-19: Antibodies of recovered patients cannot guarantee immunity