COVID-19 surges in East and Southeast Asia

COVID-19 cases are climbing across East and Southeast Asia, with notable increases in Thailand, China, Hong Kong and Singapore. Health authorities attribute the rise to new Omicron subvariants and waning immunity.

Thailand reported 33,030 new cases in the week ending May 17, more than doubling the 16,000 recorded the week before. Most infections were concentrated in Bangkok and nearby provinces. Health officials are urging high-risk groups to receive booster vaccinations and are monitoring hospital capacity.

In China, COVID-19 positivity rates rose from 7.5% to 16.2% between March 30 and May 10 — the highest in a year.

Singapore recorded approximately 14,200 new COVID-19 cases in the week ending May 3, marking a 28% increase from the previous period. Hospitalizations rose by about 30%. In response, the Ministry of Health resumed weekly updates after nearly a year.

In Hong Kong, the infection rate rose from 1.7% in mid-March to 11.4%, surpassing the August 2024 peak, according to the Centre for Health Protection. The city recorded 81 serious adult cases and 30 deaths over the past four weeks.

The current wave across the region is attributed to Omicron subvariants LF.7 and NB.1.8, both from the JN.1 lineage. These variants exhibit higher transmissibility and may partially evade prior immunity. Common symptoms include sore throat, mild cough, fatigue and fever.

In the Philippines, the Department of Health reported 1,774 COVID-19 cases as of May 3, down 87% from the same time last year. Weekly case numbers have slightly declined in recent weeks. Officials urge continued mask use in healthcare settings and early consultation for symptoms.

Vietnam has confirmed 148 cases across 27 provinces and cities since early 2025, with no fatalities. The health ministry has directed hospitals to update response plans and enforce infection control protocols.

India has expanded testing and surveillance amid rising regional cases. As of May 19, it reported 257 active cases nationwide with no significant rise in hospitalizations.

Health authorities across the region continue to promote preventive measures, including mask-wearing in crowded areas, hand hygiene and up-to-date vaccinations.