Recently, a number of Southeast Asian countries, including the Philippines, Singapore, Vietnam, Myanmar, and Malaysia, have reported dengue fever outbreaks.

The General Administration of Customs officially issued a reminder that dengue fever outbreaks have occurred in many countries recently, reminding the general public to be alert to the spread of dengue fever.

Dengue fever is an acute mosquito-borne infectious disease caused by the dengue virus, which is mainly transmitted by the bite of Aedes aegypti and Aedes albopictus. There is currently no effective drug, so we must be vigilant.

How is dengue fever transmitted?

Dengue virus is widely prevalent in tropical and subtropical regions, mostly in summer and autumn rainy seasons.

The population is generally susceptible. The currently known virus is divided into 4 serotypes, which can infect the human body and cause dengue fever or dengue hemorrhagic fever. Infection with type 2 virus can cause severe disease and fatality rates higher than other types of dengue.

After infection, the immunity to the same type of virus can be maintained for many years, but the immunity to the heterotype virus can be maintained for a short time and cannot form effective protection.

Generally speaking, the prognosis of dengue fever is good. During the epidemic period, patients with mild disease and latent infection are the main ones. Most of the death cases are severe. The main cause of death is central respiratory failure, and the case fatality rate is about 3/10,000.

Dengue hemorrhagic fever is a serious type of dengue fever. The onset is similar to that of typical dengue fever. After 2-5 days of fever, the condition suddenly worsens, with massive bleeding in multiple organs and shock. It has a high mortality rate and is more common in children.

What is the difference between dengue fever and influenza?

The typical manifestation of dengue fever is fever, accompanied by "three reds and three pains" ("three reds" are flushing, red eyes, and rash on the trunk and limbs; "three pains" are headache, orbital pain, and muscle and joint pain).

Infection with dengue fever and flu have symptoms similar to fever, runny nose, nasal congestion, sore throat, headache, fatigue, etc.;

Infection with dengue fever has typical symptoms such as flushing, red eyes, rash on the trunk and limbs, relatively mild respiratory symptoms, and relatively obvious muscle and joint pain.

If you have symptoms of suspected dengue fever, it is recommended to seek medical attention as soon as possible. If you have a history of activities in dengue endemic areas within half a month before the onset of the disease, please take the initiative to tell your doctor.

How to treat dengue virus infection?

There is no special treatment for dengue virus, and supportive and symptomatic treatment is mainly adopted.

Such as bed rest in the acute phase, liquid or semi-liquid diet, anti-mosquito isolation for more than 5 days and fever for more than 24 hours;

In severe cases, strengthen nursing, keep the mouth and skin clean and defecation unobstructed. Physical cooling is preferred in case of high fever. Analgesic and antipyretic drugs should be used with caution. Patients who sweat a lot, vomit or have diarrhea should take oral rehydration in time, and those with bleeding tendencies can choose hemostatic drugs. Wait.

How to prevent dengue infection?

Because there is no mature dengue virus vaccine on the market, the prevention and control of dengue fever still relies on the prevention and killing of the vector Aedes mosquito (commonly known as Aedes piebala).

In order to avoid infection, do not confront mosquitoes, try to avoid going to shade, grass and other shady places where common mosquitoes live. If you want to go, it is recommended to wear light-colored long-sleeved clothes and trousers to reduce bare skin, and use effective repellent according to the instructions. Mosquito products (containing DEET, DEET and other active ingredients)

In order to prevent mosquitoes from entering and leaving at will, it is recommended to install screen doors, screen windows or use mosquito nets and other anti-mosquito facilities;

In order to avoid swarms of mosquitoes, the unit or community property should standardize mosquito control, ensure the quality of mosquito control, and reduce the risk of dengue virus transmission. Individuals can always keep electric mosquito swatters or insecticides to eliminate adult mosquitoes around them at any time;

Mosquitoes mainly come from the stagnant water around us. In order to avoid mosquito breeding, it is recommended to completely remove the stagnant water around us.