Dengue fever in Hanoi reduces cases but still appears severe cases
According to the Hanoi City Center for Disease Control (CDC), in the past week (from January 2 to 9), the whole city recorded 42 cases of dengue fever, a decrease of 49 cases compared to the previous week. Although the number of cases tends to decrease, the Hanoi health sector still maintains surveillance and epidemic prevention measures to prevent the risk of re-emergence.
Hanoi CDC said it has directed ward and commune health stations to strengthen monitoring and early detection of cases at decentralized health facilities, on the software system and in the community. At the same time, deploy measures to prevent and control winter-spring epidemics, especially respiratory-transmitting diseases such as flu, measles, whooping cough, chickenpox; focus on thoroughly handling outbreaks with many people infected.
Although the number of cases has decreased, there are still serious cases. The Intensive Care Center (National Hospital for Tropical Diseases) is treating a 51-year-old male patient in Hanoi suffering from severe Dengue hemorrhagic fever complications on the basis of many chronic diseases such as obesity, diabetes, hypertension, acute pancreatitis and glomerulonephritis.
After 5 days of continuous high fever, the patient was admitted to the hospital in a state of liver failure, severe platelet reduction (only 7 G/l), liver enzymes increased by over 3,000 units, abdominal distension and respiratory failure. Doctors applied many active resuscitation measures such as mechanical ventilation, continuous blood filtration, use of vasopressors and ECMO-VV intervention. However, according to MSc.BS Pham Van Phuc, Deputy Director of the Intensive Care Center, the patient's prognosis was very bad, with a high risk of death due to multiple organ failure.
Ho Chi Minh City dengue fever complicates developments
Meanwhile, in Ho Chi Minh City, the dengue fever situation is still complicated. Although the number of cases tends to decrease, the number of severe cases is still high, putting great pressure on treatment.
Faced with this situation, Deputy Director of the Department of Disease Prevention (Ministry of Health) Vo Hai Son signed and issued Official Dispatch No. 32/PB-BTN to the Director of the Ho Chi Minh City Department of Health, requesting to strengthen epidemic prevention and control measures to minimize the number of cases and deaths.
The Department of Disease Prevention requests the Ho Chi Minh City health sector to closely monitor epidemic developments, thoroughly handle circulating outbreaks, promptly detect and control new outbreaks; and strengthen monitoring at hotspots and high-risk areas.
The Ministry of Health also proposed to promote environmental sanitation campaigns, kill larvae; closely coordinate with the Education and Training sector to direct educational institutions, especially preschools, to ensure hygiene conditions, clean water, disinfect surfaces and toys daily. Teachers need to closely monitor children's health, promptly notify suspected infections to health agencies for early treatment.
In addition, localities need to organize training to improve disease surveillance capacity, disease outbreak handling, chemical spraying techniques, larvae killing and communication skills for preventive health workers; and at the same time ensure patient reception and treatment at medical examination and treatment facilities, minimizing severe complications and deaths.
According to the Ministry of Health, nationwide, the number of dengue fever cases tends to decrease in the last months of 2025 and early 2026. However, in some localities, including Ho Chi Minh City, many serious and critical cases are still recorded, causing difficulties for treatment and potential risks of long-term sequelae.
The main reason identified is that people are still subjective, arriving late at medical facilities when the disease has become severe. In addition, weather changes, rapid urbanization have caused the emergence of many larvae, along with low awareness of personal hygiene and environmental sanitation, which continue to be factors that increase the risk of outbreaks in the coming time.
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