KUALA LUMPUR, July 19 -- The acceleration of the National Covid-19 Immunisation Programme has greatly reduced the number of serious cases among the elderly, according to Health director-general Tan Sri Dr Noor Hisham Abdullah.

He said today's data from Hospital Sungai Buloh showed a marked decrease in Category Four and Category Five cases among patients aged 60 and above.

He said this trend began in the 23rd Epidemiology Week and is in line with the start of the second phase of the national immunisation programme in early April when the government focused on injecting the elderly and others deemed at high risk with the Covid-19 vaccine.

Malaysia rolled out the immunisation programme in February and the first phase prioritised frontline...