Dengue fever is about to enter a high incidence period! Pay attention to prevention!

　　Summer has come in Fuzhou. With the temperature rising and catching up with the rainy season, mosquitoes are becoming more and more rampant. May-November is the epidemic season of dengue fever in China every year, so we should always be vigilant. Dengue fever can be prevented and controlled, and the key lies in prevention. So what is dengue fever? Let’s get to know it together ~

01

dengue

　　Dengue fever (DF) is an acute insect-borne infectious disease caused by dengue virus. It is also called "bone fracture fever" because of its severe pain, and it belongs to Class B legal infectious disease in China. The high incidence season of dengue fever is summer and autumn, which generally increases gradually from May, and the peak period is from August to October. The incubation period is 3-15 days, usually 5-8 days, and the whole population is generally susceptible.

Dengue fever does not spread from person to person!

　　Dengue virus is mainly transmitted to humans through the bite of female Aedes aegypti (mainly Aedes aegypti and Aedes albopictus) carrying the virus, and generally does not spread directly from person to person. The perennial monitoring found that there was a vector of dengue fever in Fuzhou — — Aedes albopictus

02

clinical symptoms

　　[Sudden high fever] The body temperature rises to 39℃ ~ 40℃ within a day or two, and it often lasts for a week.

　　【 "Body Pain 】 I feel headache, eye socket pain, muscle joint and bone pain, and the whole person feels very tired.

　　["Redness"] The skin on the face, neck, chest and limbs is red, which seems to be "drunk", and even conjunctival congestion and superficial lymphadenopathy appear.

　　★ The incubation period of dengue fever is generally 3 ~ 15 days, and most of them are 5 ~ 8 days. Patients and recessive infected people are the main sources of infection. Patients are contagious from 1 day before onset to 5 days after onset.

　　★ After some people are infected with dengue virus, the virus exists in the blood but does not get sick, that is, recessive infection, but it can also transmit the virus to others through Aedes mosquitoes.

Special reminder

　　The symptoms of dengue fever are similar to those of colds and flu. Pay attention to the following three differences:

　　1. The fever caused by dengue fever is generally "high fever", and the body temperature can often reach 39℃ or even 40℃.

　　2. In addition to fever, patients with dengue fever are often accompanied by bone pain, headache, muscle pain, rash, bleeding spots, and some patients may also have gastrointestinal symptoms such as diarrhea and stomachache.

　　Besides fever, the symptoms caused by cold are often accompanied by symptoms such as stuffy nose, runny nose and cough.

　　If you have a history of living abroad or have fever or rash after returning to Rongrong in areas with epidemic situation in China, please be sure to go to a medical institution with a fever clinic (consultation room) as soon as possible, and actively inform the medical staff of mosquito bites or the history of living abroad in the past two weeks, and never take medicine by yourself or see a doctor in a small clinic.

03

What should I do if I am infected with dengue fever?

　　If you are accidentally infected with dengue virus, don’t be too alarmed. Dengue fever patients generally have a good prognosis, and can basically recover after timely treatment, but there are also reports of a few serious cases of death, so please take scientific precautions. Dengue fever patients should pay attention to the following points:

　　Pay attention to rest.

　　Use acetaminophen (such as paracetamol) to treat pain, and avoid using non-steroidal anti-inflammatory drugs (such as ibuprofen and aspirin).

　　When staying at home or in hospital, do a good job in mosquito isolation, including using mosquito nets and screen doors, wearing long-sleeved clothes, spraying mosquito repellent and other measures to reduce unnecessary outdoor activities.

　　If you find any serious symptoms, please contact a doctor as soon as possible!

　　The mortality rate of typical dengue fever is less than 1%, but if it is not treated in time, it will become severe and the mortality rate will exceed 20%.

　　Therefore, no matter the severity of the illness, seek medical advice in time! Seek medical attention in time! Seek medical attention in time! Is the best way to deal with it

04

How to prevent dengue fever?

　　At present, there is no approved and registered vaccine for dengue fever, and there is no specific antiviral drug. Mosquito control is the key to prevent dengue fever.

　　(1) Environmental governance

　　Clean up all kinds of stagnant water at home. Water bottles should be changed for aquatic plants every 5-7 days, and no stagnant water should be left on the flowerpot chassis. The terrace outside the building, outdoor potholes, tree holes, bamboo tubes and other accumulated water, should be regularly dredged, leveled and filled with potholes, rummaged pots and cans, and cleaned up waste tires and other measures. For stagnant water that cannot be removed for a long time, a corrosion inhibitor can be put in to kill larvae.

　　(2) Physical prevention and control

　　Use light, sound, electricity and other physical methods to kill, trap or drive away mosquitoes, such as optical traps and electric mosquito swatter.

　　(3) Chemical control

　　Use mosquito-repellent incense, repellent, aerosol insecticide and other commonly used chemicals to kill and repel mosquitoes.

　　(4) Biological control

　　Ornamental fish are stocked in ponds and lotus tanks, carp and grass carp are stocked in paddy fields and irrigation ditches, and mosquito larvae are eliminated by stocking fish.

　　(5) Personal protection

　　During the epidemic season in dengue endemic areas, screen doors and screens should be installed indoors, and mosquito nets should be used when sleeping. Try to minimize going out during the peak hours of mosquito activities. When going out, such as going to parks, green belts and other places, you should wear long-sleeved clothes and trousers, and apply mosquito repellent drugs to exposed skin and clothes. You should also avoid staying too long in places with more outdoor mosquitoes such as shade, grass and gazebo. Avoid traveling to Southeast Asia, Africa, America and other regions during the period of high incidence of mosquito-borne infectious diseases.