Preventive Measures for Dengue Fever

As we all know, Guangdong suffered the worst dengue fever in 20 years in 2014. According to the epidemic situation reported by the Guangdong Provincial Health and Family Planning Commission, as of zero o’clock on September 25, 2014, there were 8,273 confirmed cases in the province. Guangzhou has reported 6986 cases (84% of the province’s cases). A total of 3 deaths have been reported, all of which are over 70 years old and all suffer from basic diseases, while the vast majority of other cases are mainly mild diseases.

Typical symptoms of dengue fever

It mainly includes: sudden onset, rapid fever, body temperature up to 40 ℃ within 24 hours, accompanied by fear of cold, severe headache, orbital pain, muscle, joint and bone pain, fatigue, nausea, vomiting and other symptoms; Fever usually lasts for 2-7 days, Congestive rash or needle-like bleeding spots appeared on the 3rd to 6th of the course of the disease, Distributed on the trunk or head and face of limbs, More itchy, It lasts for 3-5 days. Notably, The symptoms of dengue fever vary from mild to severe, In the early days, Similar to colds and flu, It is easy to be misdiagnosed. A few patients will suddenly worsen within 3-5 days of onset, Severe symptoms such as severe headache, vomiting, mania, coma, convulsions, massive sweating, sudden drop in blood pressure, neck rigidity, pupil contraction, etc. may occur. Severe high-risk groups include the following four groups: A, patients with secondary infection (dengue virus has four serotypes of DENV-1, DENV-2DENV-3 and DENV-4, All four serotypes can infect people. After being infected by dengue virus, the human body can produce lasting immunity to the same type of virus, but cannot form effective protection against heterotype virus infection. If infected with heterotype or multiple different serotypes of virus again, the human body may have immune reaction, thus leading to severe clinical manifestations); B, accompanied by diabetes, hypertension, coronary heart disease, liver cirrhosis, peptic ulcer, asthma, COPD, chronic renal insufficiency and other basic diseases; C, the elderly, pregnant women, infants; D, obesity or severe malnutrition. Support and symptomatic treatment at present, there is no specific antiviral treatment drug, mainly support and symptomatic treatment measures. The treatment principles are early detection, early treatment and early mosquito prevention and isolation. General support treatment includes bed rest, light diet, mosquito prevention and isolation until fever reduction and symptom relief; Symptomatic treatment includes antipyretic and rehydration (mainly oral rehydration). The transmission of dengue virus is mainly through the bite of Aedes mosquitoes (Aedes aegypti and Aedes albopictus). It will not be transmitted from person to person. At present, there is no vaccine to prevent dengue fever. Therefore, the best preventive measures are mosquito control and mosquito control. That is to say, to prevent mosquito breeding and to do a good job of personal protection. Mosquito control measures: Clean up water tanks, pots, jars and other water containers in the home. Turn over pots and cans to remove accumulated water, Water-cultured plants need to be changed to water or soil culture for 3-5 days. The water tank should be capped, The trash can should be covered, Floor drains, sewers and other places to prevent water accumulation, And often spray some insecticide, Aedes mosquitoes cannot find spawning sites. Anti-mosquito measures: Screen windows, screen doors, And mosquito nets. Apply mosquito repellent liquid and mosquito repellent toilet water when going out, The effective ingredients of mosquito repellent liquid and mosquito repellent toilet water sold in regular shopping malls and supermarkets are mostly DEET and mosquito repellent ester. The mosquito repellent effect is very good, and the safety is also reliable according to the instructions. Attention should be paid to the skin exposed to the outside, not touching wounds, eyes and mouth, and less use in ears. When children use it, do not let children spray it on their own, but spray it on adults’ hands and then apply it to children, but do not apply it on children’s hands to prevent them from passing through the entrance. After returning to the room from the outside, clean the mosquito repellent with soap-containing cleaning agent immediately. If the skin is allergic, stop using it immediately. There is no scientific basis for folklore such [tricks] [artifacts] as vitamin B1 crushed and dissolved water applied to the body, balm essence camphor balls smoked in the room, wearing mosquito repellent bracelets and mosquito repellent stickers, using mosquito repellent traditional Chinese medicine bags, ultrasonic mosquito repellent, Don’t try during the dengue fever epidemic. National Day travel to prevent dengue fever reminder 1. Aedes mosquitoes are mostly active during the day. 8-10 a.m. and 4-6 p.m. are the peak hours for Aedes mosquitoes, During these periods, when outdoor activities such as green belts and forest belts are held, Particularly in areas where dengue fever is endemic, It is recommended to wear light-colored long clothes and trousers. And apply mosquito repellent toilet water containing DEET or mosquito repellent ester on bare skin. Take a bath in time after exercise. Keep skin fresh 2. Try to avoid staying in shade, grass, pavilion and other outdoor shade during frequent Aedes mosquitoes. Try to stay away from breeding places of Aedes mosquitoes such as accumulated water and waste tires. 3. When camping and setting up tents, pay attention to removing weeds and sundries, and stay away from accumulated water and hidden parts such as crockery, tree hole and waste tires. While using mosquito nets, spray mosquito repellent around. Try to wear sweat-absorbing long-sleeved clothes and trousers when you sleep. 4. If symptoms occur when you come back from the trip, The incubation period of dengue fever is 3-15 days after being bitten by mosquitoes, with an average of 5-8 days. If you have been bitten by Aedes mosquitoes during the high incidence period of dengue fever, or have been to countries or regions where dengue fever is prevalent, and have been bitten by Aedes mosquitoes, you may suffer from dengue fever.