Surge in Flu, RSV, Dengue And COVID-19 Cases Across Thailand Sparks Health Warning
Nikhil Prasad Fact checked by:Thailand Medical News Team Sep 23, 2025 14 hours, 49 minutes ago
Thailand Medical: Rising Cases Across Thailand
Thailand’s Ministry of Public Health has issued a stark warning as Thailand experiences a worrying rise in multiple infectious diseases. New data shows a surge in influenza, respiratory syncytial virus (RSV), and dengue fever, while private hospitals are also reporting increased COVID-19 cases. Between September 7–13, more than 30,000 new influenza cases and over 3,000 RSV infections were logged through the Digital Disease Surveillance (DDS) system. This
Thailand Medical News report highlights that unpredictable weather patterns—with scorching afternoons followed by heavy evening rains—are making people more vulnerable to these illnesses, especially children, the elderly, and those with chronic conditions.
Surge in Flu, RSV, Dengue And COVID-19 Cases Across Thailand Sparks Health Warning
Influenza and RSV Trends
From January 1 to September 20, Thailand recorded a total of 555,074 influenza cases, leading to 59 deaths. Children aged 5–9 showed the highest infection rates at 2,874.8 cases per 100,000 population, followed by those aged 0–4 (2,395.0) and 10–14 (1,959.1). RSV infections also remain a major concern, with 16,145 cases and two reported deaths this year. The majority of RSV patients were children aged 0–4, with an incidence rate of 467.1 per 100,000.
Health officials warn that both influenza and RSV thrive during the rainy season, with outbreaks easily spreading in schools, daycare centers, and crowded community areas if preventive measures are not strictly followed.
The Dengue Fever Situation
Alongside respiratory illnesses, dengue fever continues to threaten public health during this year’s rainy season. So far, 43,587 dengue cases have been reported nationwide, with 36 fatalities. Health authorities are urging the public to reduce mosquito breeding sites, use repellents, and seek medical attention quickly if they develop fever, rashes, or joint pain. The overlapping burden of flu, RSV, and dengue is putting additional pressure on hospitals and clinics across the country.
COVID-19 Still Lingers
Adding to the concerns, several private hospitals are reporting a noticeable rise in COVID-19 admissions. Experts point to the spread of a newly detected variant known as XFG and its sublineages. This strain appears to be more infectious and more capable of evading immunity, triggering new outbreaks in different regions worldwide. While local Thai authorities have not officially commented on the domestic COVID-19 situation, doctors recommend the continued use of masks, especially in crowded or poorly ventilated areas, and emphasize extra caution for vulnerable groups.
Public Health Advice
The Department of Disease Control advises the public to adopt strong health practices, including frequent handwashing, mask-wearing in crowded areas, and avoiding close contact with infected individuals. Vaccinations for influenza remain a critical preventive measure, while maintaining mosquito contro
l remains vital in combating dengue. Officials warn that the convergence of multiple outbreaks this season could overwhelm healthcare facilities if communities do not remain vigilant.
Conclusion
The rise in influenza, RSV, dengue, and COVID-19 cases highlights the fragile balance of public health during Thailand’s rainy season. Children remain the most vulnerable group for flu and RSV, while dengue continues to cause severe complications and deaths. The reappearance of new COVID-19 strains adds another layer of risk, making preventive measures essential. If individuals and communities fail to take these warnings seriously, the nation could see further spikes in infections and fatalities in the coming months.
Reference:
https://www.ddc.moph.go.th/brc/news.php?news=55691&deptcode=brc&news_views=1032
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