[REVISION HISTORY]

Vietnam dengue fever outbreaks expand across provinces

Updated 17 times since CLSTR started tracking revisions of this situation.

What changed

2026-09-15 03:10 UTC → 2026-09-27 08:23 UTC · added ~~removed~~

By ~~mid-September~~ late September 2026, dengue fever outbreaks continued to expand across Vietnam, driven by hot, humid weather and the rainy season. In Ho Chi Minh City, the situation remains severe, with over 31,000 cases recorded since the beginning of the year. Medical facilities, including the Hospital for Tropical Diseases, have treated critical cases involving shock, multi-organ failure, and respiratory distress, sometimes requiring expensive interventions such as VV-ECMO. In Dak Lak province, the Center for Disease Control reported 6,112 cases as of September 10, including two deaths. High-risk areas include several communes and wards within the province. This follows a period of rapid growth in the region, which previously saw a “207% increase compared to July” in August. In Hanoi, health authorities continue to warn of potential outbreaks due to unpredictable weather, high population density, and students returning for the new school year. Regional case counts also remain elevated in Dong Nai, which has recorded more than 9,000 cases and five deaths this year. As In Hanoi, the Hanoi CDC reported that more than 3,200 cases have been recorded across 118 wards and communes since the start of ~~mid-September,~~ 2026, with no deaths reported in the ~~National Hospital for Tropical Diseases has highlighted~~ capital to date. Medical experts, including Dr. Nguyen Thai Minh from Dong Da General Hospital, have issued warnings regarding the critical phase of the illness, which often coincides with the period when a patient’s fever begins to subside. This stage, typically occurring between the third and seventh day of symptoms, can lead to complications such as plasma leakage, hypotension, shock, low platelet counts, and hemorrhaging. Health authorities emphasize the danger of misdiagnosing the virus as a common flu due to overlapping symptoms like fever, headache, and fatigue. Medical professionals have reported cases where patients initially attempted self-treatment for colds, only to suffer severe headaches and bleeding gums. flu. Dr. Nguyen Thanh Binh, Deputy Head of the Virus and Parasite Department, has ~~specifically~~ advised against self-medicating with non-steroidal anti-inflammatory drugs (NSAIDs) ~~before dengue is ruled out, as these can increase~~ to avoid increasing bleeding risks. ~~Medical experts emphasize that there is no specific treatment for dengue fever. They warn that the disease can progress~~ Patients are urged to a monitor for warning signs, including severe ~~stage between~~ abdominal pain, continuous vomiting, lethargy, or bleeding from the ~~third~~ gums and ~~seventh day of symptoms.~~ nose, and to seek immediate professional care.

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