Taiwan Detects 17th Local Dengue Case

The Taiwan Centers for Disease Control (TCDC) recently announced new cases of mosquito-transmitted Dengue fever this year.

As of the end of September 2025, there have been 17 confirmed local cases of Dengue, with residents in Kaohsiung City (12 cases), Taoyuan City (4 cases), and Yilan County (1 case).

The TCDC reminds that although autumn has arrived, temperatures remain relatively high, making them suitable for the growth of mosquitoes that carry the disease. The public is advised to implement a "patrol, empty, sweep, and brush" approach to eliminate breeding sources to reduce mosquito density. 

Additionally, the total number of imported cases this year is 181, the second-highest number in the same period over the past six years.

Most of the cases originated from Southeast Asian countries (92%), with Indonesia leading the way (56 cases), followed by Vietnam (42 cases), the Philippines (24 cases), and Thailand (20 cases).

Dengue cases have recently increased in neighboring Asian countries such as Bangladesh and China, with case numbers in Bangladesh, China, Vietnam, Sri Lanka, and Cambodia also exceeding the same period in 2024.

Taiwan medical institutions are also urged to heighten their vigilance and inquire more closely about patients' travel, occupational, contact, and social history.

They are also encouraged by the TCDC to use the dengue fever NS1 rapid screening test to assist in diagnosis and report cases early, enabling health authorities to implement preventive measures. 

As of October 2025, fewer travel-related Dengue cases had been reported in the United States. However, the State of Florida continues to report both travel-related and locally acquired cases in 2025.

While Dengue is a vaccine-preventable disease, the current second-generation vaccine is unavailable in the United States.