Disaster prevention and mitigation
Stay safe
The most maddening little thing in summer is probably mosquitoes! Even just one can "buzz" and make people's scalp tingle! Not to mention, they're not small!
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Mosquitoes are known as the "number one health killer" and kill an estimated 700,000 people worldwide each year.
Mosquitoes mainly transmit malaria and dengue fever, mainly in Africa and South-East Asia, and there is a major risk of imported retransmission to the continent, and there is no effective preventive vaccine.
During the summer vacation, I would like to remind you to pay attention to safety when traveling and strengthen your precautions against dengue fever.
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One
In July, dengue fever reached its peak in the epidemic
According to the National Health Commission, the epidemic season for dengue fever transmission is from May to November every year, and the peak of the epidemic is from July to September.
Specifically, dengue fever is an acute insect-borne infection caused by dengue virus, mainly transmitted by the bite of Aedes mosquitoes, and the epidemic area is mainly distributed in tropical and subtropical regions, with Southeast Asia, the Western Pacific and the Americas being the most serious.
Dengue fever is mainly prevalent in Guangdong, Guangxi, Hainan, Fujian, Zhejiang and other regions in mainland China, and has typical imported and sudden characteristics. The disease spreads rapidly, has a high incidence, and is generally susceptible to the population.
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Reminder: If you have fever symptoms within 2 weeks after returning from travel, please go to a regular hospital immediately for medical treatment and inform your travel history to avoid delaying the illness and causing severe illness.
Two
Dengue fever is mainly transmitted by "flower mosquitoes".
Dengue fever is mainly transmitted by the route of "patient→ Aedes mosquito → others". Diseases are generally not transmitted directly from person to person.
Currently, dengue virus is mainly transmitted by Aedes albopictus and Aedes Egypt (commonly known as "flower mosquitoes"). After a dengue fever patient or a person with latent infection is bitten by Aedes mosquitoes, it usually takes 8 to 10 days for the virus to multiply in the Aedes mosquito before it can be transmitted to humans through the bite.
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Mainland populations are generally susceptible to dengue virus, and the incubation period after infection is generally 1 to 14 days (most are 5 to 9 days), but some people do not develop the disease (i.e., those with latent infection). Aedes mosquitoes, the vector that can transmit dengue virus, is widely distributed on the continent and may spread rapidly after importation.
Three
There are 4 typical symptoms of dengue fever
The typical symptoms of dengue fever can be summarized as: sudden high fever + three red signs + three pains + rash.
Sudden high fever: The body temperature can rise to 39 or 40 degrees Celsius in 24 to 36 hours.
Three red signs: flushing of the face, neck, and chest.
Three pains: severe headache, generalized joint pain, muscle aches.
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Rash: An congestive or punctate hemorrhagic rash on the limbs, trunk, or head and face.
Four
Avoiding mosquito bites is key to prevention
What can I do to stay away from dengue fever in my life? Avoiding mosquito bites is key!
When going outdoors in dengue-endemic areas, try to choose light-coloured, long-sleeved trousers and use insect repellents or other mosquito repellent medications if possible.
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In addition, the prevention of dengue fever should also do the following mosquito prevention and control work:
1. Clean up the stagnant water at home: for example, aquatic plants should change the water and wash the bottle regularly (at least once a week), and do not let the bottom of the pot leave stagnant water;
2. Keep ventilation dry;
3. Install screen doors and windows and use mosquito nets;
4. Use mosquito control products.
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It is important to note that there is currently no specific drug for dengue fever, and treatment focuses on pain control, timely fluid rehydration, prevention of bleeding, and early mosquito prevention.
If you accidentally get infected with dengue virus, don't panic too much. Patients with dengue fever generally have a good prognosis and can basically recover after timely treatment, but there are also a few reports of deaths in severe cases, so please take scientific precautions.