The risk of a second dengue fever is greater, easily causing serious complications

Thanh Thanh |

HCMC - When dengue fever is reinfected, the immune system can react more strongly, leading to more serious illness than the first time, increasing the risk of serious complications.

Statistics from the Ho Chi Minh City Center for Disease Control show that since the beginning of the year, Ho Chi Minh City has had more than 7,600 cases of dengue fever, an increase of 134% over the same period in 2024. Of which, the number of severe cases accounts for 1.5% of the total number of cases.

According to the trend, the number of weekly cases in 2025 is higher than the same period in 2024. When the rainy season comes, the number of cases is forecast to increase.

According to the City Children's Hospital, the dengue fever season has arrived, often recording the highest number of cases from May to November every year. Currently, there is no specific medicine to treat this disease, so prevention plays a top priority role.

There are 4 types of Dengue virus that cause dengue fever, which means that each person can get the disease up to 4 times in a lifetime. When reinfected, the immune system can react more strongly, leading to more serious illnesses than the first time, increasing the risk of serious complications such as internal bleeding; multiple organ failure; hemorrhagic shock and if not treated promptly, it can be life-threatening.

The dengue fever vaccine combined with mosquito control measures is an effective way to protect health. After the second dose, the vaccine helps reduce the risk of disease by 80.2% in 12 months and the risk of hospitalization by 90.4% in 18 months.

HCDC calls on every citizen to proactively take dengue prevention measures right now to prevent outbreaks.

In particular, preventing mosquitoes from laying eggs by covering and covering domestic water containers with materials that do not fly in to lay eggs; changing water and rinsing water containers periodically at least once a week; flip the water container when not in use; remove scrap, collect waste that can contain water.

Prevent mosquito bites by sleeping on the stomach, using mosquito spray, electric mosquito fishing rackets... When you have a fever, you should go to a medical facility immediately for examination and treatment, do not self-treat at home.

When detecting a location at risk of lentils arising causing dengue fever, people should report the address to the online Health application for timely treatment.

Thanh Thanh
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