Dengue fever is mainly prevalent in tropical and subtropical regions, especially in Indonesia, Singapore, Thailand, Vietnam, India, Bangladesh and other countries. The following is the knowledge of dengue fever prevention and control that I brought to you. Welcome to reading.

Understand that dengue fever is caused by dengue virus, which is an acute viral infectious disease with fever and joint muscle pain as the main manifestations, and a few severe patients can die.

According to the symptoms, dengue fever is also called joint fever, fracture fever and childe fever. ? Gordon? This word comes from Spanish, which means putting on airs. It is used to describe the gait instability caused by joint muscle pain at the time of onset, just like the posture of a dude walking.

According to the severity of clinical manifestations, it can be divided into three types: mild, typical and severe.

The epidemic area and characteristics of dengue fever mainly occur in southern China, and it is high at the peak of mosquito breeding.

Dengue fever is mainly prevalent in tropical and subtropical regions, especially in Indonesia, Singapore, Thailand, Vietnam, India, Bangladesh and other countries.

Guangdong, Guangxi, Hainan, Yunnan, Fujian, Zhejiang, Hongkong, Macau, Taiwan Province and other places are endemic areas of dengue fever. With the warming climate and convenient transportation, it tends to expand northward.

May-165438+ 10 is the high incidence period in China.

Dengue fever is transmitted only through the bite of Aedes mosquitoes, not directly from person to person, nor through air or contact.

Patients and recessive infected people are the main sources of infection.

Mosquitoes spread the virus by biting others after biting people with the virus.

People are generally susceptible.

Clinical manifestations of dengue fever The incubation period of dengue fever is 3- 15 days. The typical clinical manifestations of dengue fever are high fever, headache, eye pain, musculoskeletal pain, rash and bleeding.

Mild dengue fever patients have mild symptoms, mainly manifested as low fever, superficial lymphadenopathy, mild systemic pain, and generally no rash and bleeding; The course of disease is generally 1-4 days; Because the symptoms are mild, they are often ignored.

Typical symptoms of dengue fever include high fever, which can reach 39-40℃; Fever is accompanied by headache, eye pain and muscle joint pain; It may be accompanied by gastrointestinal symptoms such as loss of appetite, nausea, vomiting, abdominal pain and diarrhea. Patients will also have rashes and bleeding in different parts, such as nosebleeds, bloody stools, hematuria and subcutaneous bleeding. Most patients also have superficial lymphadenopathy.

Severe dengue fever patients may have severe headache, vomiting, disturbance of consciousness, stiff neck and other symptoms. Some cases may have gastrointestinal bleeding, hemorrhagic shock and central respiratory failure. Severe patients are rare, but the mortality rate is high.

Treatment and prognosis of dengue fever Most patients with dengue fever have a good prognosis after symptomatic treatment, and only a few severe patients will die.

There is no specific drug for the disease, and support and symptomatic treatment are generally given.

In the acute stage, stay in bed, give a liquid or semi-liquid diet and isolate mosquitoes until the fever is completely gone. It is not advisable to go to the fields too early to prevent the illness from getting worse.

Physical cooling is the main method of high fever. For patients with obvious bleeding symptoms, alcohol bath should not be used. Antipyretic and analgesic drugs have poor antipyretic effect and may cause serious complications, so use them with caution.

Patients with sweating or diarrhea should drink plenty of water and eat liquid food properly. Patients with frequent vomiting, eating difficulties or hypotension should be given intravenous infusion in time.

Prevention and control measures of dengue fever The prevention of dengue fever focuses on mosquito killing and prevention, and there is no effective vaccine at present.

Carry out environmental improvement, eliminate weeds, remove stagnant water and eliminate mosquito breeding grounds.

Spray pesticides in bamboo forests, Woods, garbage stations and other places where there are many mosquitoes, and spray non-toxic pesticides indoors to kill mosquitoes.

Use a covered trash can at home; Try to avoid breeding aquatic plants indoors; Vases and other containers should be cleaned and changed at least once a week, and there should be no water at the bottom of the flowerpot.

Try to wear long-sleeved clothes and trousers outdoors in dengue endemic areas, and spray insect repellent on exposed skin. It's best to spray insect repellent on clothes, too.

Avoid staying in cool outdoor places, such as shade, grass, gazebo and other places where mosquitoes often haunt.

Install mosquito nets to prevent mosquitoes.

Tip: Beware of mosquitoes that bite during the day.

Dengue fever is mainly transmitted by Aedes mosquitoes, which like to move during the day. Therefore, in order to prevent dengue fever, we should pay special attention to mosquitoes that bite during the day.

The rainy season is the breeding season of Aedes mosquitoes. Aedes mosquitoes like to lay their eggs in dirty water tanks, vases, discarded tires, bamboo joints, caves and other small stagnant water. More than 2.5 cm of accumulated water inside and outside the room is an ideal place for Aedes mosquitoes to lay eggs and hatch, so dumping accumulated water is a good anti-mosquito measure.

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