A government adviser on the pandemic said on Monday that Hong Kong's current Covid wave is expected to peak in three or four weeks, as he called on vulnerable people to ensure their jabs are up to date.

Speaking on RTHK's Hong Kong Today programme, Professor Ivan Hung from the University of Hong Kong said that the SAR was seeing more than 10,000 new cases each day at the moment, though most are relatively mild.

However, he said the fact that about 220 patients were in a serious or criticial condition in hospital showed the importance of staying up to date with vaccines.

"I think what's most important is for those who are very elderly, those who have chronic illnesses, to make sure that they get the bivalent booster shot if they're already six months from the previous vaccine or the previous infection," he told RTHK's Janice Wong.

"And if they have got Covid, they need to go and seek medical help as soon as possible."