In a tweet, he said the infectivity rate had increased again because the daily case rate had not declined.

“This means the daily case rate is getting flat and our concern is if it rises again,” he said.

Noor Hisham urged the public not to be complacent and for the vulnerable groups to get a booster dose immediately when an appointment is given.

As of yesterday, Malaysia’s Covid-19 infectivity (R0) rate stood at 0.99, with Putrajaya having the highest level of 1.06.

Kuala Lumpur and Selangor both recorded R0 levels of 1.03 and Kelantan 1.01.

Recently, health minister Khairy Jamaluddin said some 40% of those eligible for Covid-19 booster shots have not turned up for their appointments.

He said that if the booster take-up is low, especially among the elderly and those with comorbidities, hospitalisation numbers will go up.