Increase surveillance to detect early and thoroughly handle dengue fever outbreaks

Delegates attend the online conference to strengthen the prevention and control of dengue fever and infectious diseases by 2025 at the Dong Nai Department of Health bridge. Photo: Hai Yen

Delegates attend the online conference on strengthening the prevention and control of dengue fever and infectious diseases by 2025 at the Dong Nai Department of Health bridge. Photo: Hai Yen

According to the Department of Disease Prevention, in Vietnam, the cycle of dengue fever outbreaks between years tends to be shorter than before, from about 5 years to about 3-4 years in recent years. The most recent dengue fever outbreak was in 2022 with a high number of cases (370 thousand cases). Therefore, the risk of an outbreak in 2025 is very high if localities do not implement drastic measures to prevent the disease right from the beginning of the epidemic season.

Currently, our country has entered the peak season of dengue fever, with hot and humid weather and heavy rain, creating favorable conditions for mosquitoes to develop and transmit the disease. The number of cases has increased locally in some localities, especially in the Southern region (accounting for more than 70% of the total cases in the country).

Doctor examines a dengue fever patient being treated at Thong Nhat General Hospital. Photo courtesy of Contributor

As of week 23 of 2025, a number of provinces recorded a high increase in the number of cases compared to the same period in 2024, specifically: Ben Tre (old, up 346.5%), Tay Ninh (old, up 274.3%), Long An (old, up 208.6%), Dong Nai (old, up 191.7%), Ho Chi Minh City (up 151.4%). In the coming time, it is possible that the number of dengue fever cases will continue to increase in localities across the country due to the peak of the dengue fever epidemic.

To proactively prevent dengue fever, the Ministry of Health requires localities to focus on strengthening communication work; directing localities to actively deploy campaigns to eradicate mosquito larvae and larva at peak times in the last months of the year, maintaining them regularly and continuously; building and maintaining a team of collaborators and shock troops in disease prevention and control; monitoring, early detection and thoroughly handling outbreaks as soon as the first case is detected...

Staff from the Provincial Center for Disease Control inspect dengue fever prevention and control work in Dau Giay commune. Photo: Contributor

According to statistics from the Provincial Center for Disease Control, as of July 10 (week 28), the number of dengue fever cases in the province has increased and 1 death has been recorded (in Dong Phu commune). The Provincial Center for Disease Control assessed that the dengue fever epidemic situation is complicated, the weather is changing erratically compared to previous years, and it is currently the rainy season. In addition, people are still subjective in preventing and fighting dengue fever. Therefore, the risk of dengue fever outbreaks in localities in the province is very high.

The Provincial Center for Disease Control recommends that regional health centers closely monitor the local situation weekly, review communes/wards with outbreaks to develop timely epidemic suppression plans; strengthen communication work, monitor and promptly handle outbreaks, expand the scope of outbreak handling, and ensure that the outbreak does not spread and prolong...

Hai Yen

Source: https://baodongnai.com.vn/tin-moi/202507/tang-giam-sat-de-phat-hien-som-va-xu-ly-triet-de-cac-o-dich-sot-xuat-huyet-6e2018e/