Dengue fever is in the high season, so be careful when these symptoms appear recently →

　　As the temperature rises,

　　Mosquitoes gradually entered the peak of activity.

　　After the increase of mosquitoes

　　A disease called dengue fever.

　　Also began to quietly approaching …

　　What is dengue fever?

　　Dengue fever is an acute infectious disease caused by dengue virus, which is spread by the bite of Aedes mosquitoes. After a mosquito sucks the blood of an infected person, it usually takes about 8 to 10 days to replicate the virus in the body, and then it can spread the virus when it bites the next time, that is, the transmission route is "patient → Aedes → others". Dengue fever is generally not transmitted from person to person.

　　People in China are generally susceptible. After infection, the incubation period is generally 1 ~ 14 days, but some people do not get sick (called recessive infection). Patients and recessive infected people are the main sources of infection.

　　Symptoms of dengue fever include sudden fever, headache, orbital pain, muscle and joint pain (commonly known as "three pains and one fever"), and rash. In severe cases, it may develop into dengue hemorrhagic fever or dengue shock syndrome, which is life-threatening.

　　Source: Network

　　Where is dengue fever mainly prevalent?

　　Dengue fever epidemic areas are mainly concentrated in tropical and subtropical areas, Southeast Asia, the Western Pacific and America, including Thailand, Indonesia, Malaysia, the Philippines and other countries around China. Dengue fever epidemic in these areas exists all the year round, and the number of cases is large.

　　The epidemic situation of dengue fever in China is mainly imported from abroad, and there are also local cases caused by imported cases. The main overseas sources are Southeast Asian and South Asian countries such as Myanmar, Cambodia, Indonesia, Thailand, Laos and Malaysia. Local cases are mostly distributed in coastal or border areas such as Guangdong and Yunnan.

　　Please pay attention to cross-border travel!

　　With the arrival of summer vacation, the number of cross-border and inter-provincial personnel has increased, and the risk of epidemic input has increased. If you have stayed in Southeast Asia, South Asia, Latin America and other dengue endemic areas within 2 weeks before the onset of the disease, or there are confirmed cases of dengue fever around you, and you have symptoms such as fever, rash, headache and myalgia, you need to consider the possibility of getting dengue fever, go to the hospital as soon as possible, and take the initiative to explain your travel history so as to get treatment as soon as possible. At present, there is no specific antiviral drug for dengue fever.

　　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, early identification, early diagnosis and early treatment are important measures to prevent serious illness and further spread.

　　How to prevent dengue fever?

　　According to the characteristics of replication and transmission of dengue virus in mosquitoes, the key to prevent dengue fever is to reduce mosquito bites, which includes physical anti-mosquito measures such as mosquito nets and screens, as well as chemical anti-mosquito methods such as spraying pesticides and using mosquito repellent.

　　In addition, cleaning up indoor and outdoor stagnant water and reducing mosquito breeding environment are also important measures to prevent dengue fever.

　　Synthesis: Henan Institute of Disease Control and Transmission and Prevention.