As the high season for dengue fever approaches, how should you prevent it?

how to prevent dengue fever

Typhoon "Nida" has brought strong rainfall. In this season of high temperature and humidity, a ghost that visits regularly every year has also come again, that is, dengue fever.

Dengue fever is widely present in tropical areas. Guangdong Province, due to its well-developed water network, dense population, and hot and humid weather, hasbecome one of the areas with the most dengue fever cases in the world.Media reports have recently come into contact with suspected or confirmed cases of dengue fever, which deserves the attention of the public and all medical staff.This popular science article will tell you how to prevent dengue fever?

Dengue fever is an arthropod-borne viral infection transmitted by Aedes mosquitoes (commonly known as spotted mosquitoes), and patients and asymptomatic carriers are the sources of dengue virus transmission.Dengue fever, which requires Aedes mosquitoes as a vector, is more prevalent from May to November each year, especially from July to September.

The dengue virus has four different types, and there is no significant cross-resistance between the four types. Different types of dengue viruses prevail in different years, so dengue fever often has the characteristic of erupting in epidemics every few years, and severe cases are common during the outbreak period.

The last outbreak of dengue fever in Guangzhou was in 2014, with more than 35,000 confirmed cases reported. It was finally brought under control through the unremitting efforts of the infection control department.

After being bitten by Aedes mosquitoes carrying the dengue virus, the average incubation period is 4-7 days, not exceeding 14 days. The main symptoms include fever, headache, eye pain, and muscle and joint pain.

The duration of fever is mostly 5-7 days, and a few cases can have a second rise in body temperature after the first fever subsides, lasting 1-2 days.

In adults, dengue fever often causes significant fatigue and loss of appetite, and even repeated nausea and vomiting. One-third of the cases will have symptoms similar to the common cold, such as sore throat, nasal congestion, and rhinorrhea, which can easily lead to misdiagnosis and missed diagnosis.