Factors Contributing to Recent Increase in Influenza Cases

Mr Lee Hong Chuang asked the Coordinating Minister for Social Policies and Minister for Health (a) what are the primary factors contributing to the increase in influenza cases as reported by the Communicable Diseases Agency on 1 September 2026; (b) whether the delay in the availability of Northern Hemisphere influenza vaccines will affect the situation; and (c) what are the current trends in the demand of influenza vaccines among vulnerable groups.

Mr Ong Ye Kung: My response will also address a similar question raised by Mr Lee Hong Chuang filed for a subsequent Sitting. If the Member is satisfied with the response, he may wish to withdraw the question from that Sitting.

Influenza circulates throughout the year in Singapore, with higher activity typically observed from May to August and December to March. The timing of these increases may vary from year to year, influenced by factors, such as international travel, immunity levels and population mixing. The recent increase in Singapore has also occurred alongside higher influenza activity in the region.

The 2026/2027 Northern Hemisphere (NH) influenza vaccine has arrived in Singapore and is being progressively offered to the public.

Influenza vaccination uptake among residents aged 65 and above from June to August this year was broadly comparable to the same period last year. We will continue to monitor influenza activity and vaccine demand, particularly among seniors and other vulnerable groups, and encourage those who are recommended to receive influenza vaccination to do so.

Under Healthier SG, doctors remind their enrollees to receive timely vaccinations through personalised health plans. Influenza vaccination is fully subsidised for eligible Healthier SG enrollees, when vaccinated at their enrolled Healthier SG clinic. For the general population, influenza vaccination booking can be made through HealthHub for polyclinics, and the Health Appointment System for participating general practitioner clinics under the Community Heath Assist Scheme.