Health Ministry director-general Dr Noor Hisham said none of the 3,106 fully vaccinated medical officers who got infected with Covid-19 deteriorated to Category 5, which requires ventilator support.

He said most of the cases, or 99.8 percent, were either asymptomatic (32.6 percent - Category 1) or had only mild symptoms (67.2 percent - Category 2)...