What are the dangers of mosquitoes to humans

1. The types and living habits of mosquitoes are common Anopheles mosquitoes, Culex mosquitoes, black spot mosquitoes, Aedes albopictus mosquitoes, etc. The growth process of mosquitoes is egg larvae pupa adult mosquitoes, in which eggs, larvae, and pupae all grow in water, and mosquitoes cannot breed and reproduce without stagnant water. Mosquitoes generally fly and mate at dusk or dawn, and the female mosquito will suck human blood after fertilization, because only after sucking blood can it develop and lay eggs.

After laying eggs, the larvae can hatch after 2 to 3 days, float in the water, molt into pupae after four times, and hatch into adult mosquitoes after 3 or 4 days, the whole process is about 9 to 10 days. 2. The harm of mosquitoes Mosquitoes have a blood-sucking habit, and look for the smell of amino acids of people or animals when sucking blood, especially babies or delicate ones. When sucking blood, mosquitoes can inject saliva such as malaria parasites, filaria, and Japanese encephalitis virus into the human body, causing human infection and disease.

Therefore, mosquitoes not only bite people and suck blood and affect sleep, but also transmit Japanese encephalitis, malaria, dengue fever, blood filariasis, etc. 3. Elimination and prevention measures (1) Strengthen the management of construction sites and remove pit water in a timely manner. (2) Dredging ditches, sewers, filling potholes, turning pots and cans to remove stagnant water.

3) Stocking mosquito-eating fish in anti-inflammatory pools (buckets) and hydroponic pots, or changing the water frequently (1 2 times a week). 4) Use drugs to eliminate adult mosquitoes. Mosquito medicines include dichlorvos, trichlorocide, pyrethroid insecticides.

Such as mosquito water, mosquito tablets, mosquito coils, etc. Breeding sites in public places can be sprayed with microbial pesticides and mosquito larvae (Bacillus globulus liquid).

What are the hazards of mosquitoes and how to prevent them? The hazards are: Harassment.

Stinging and sucking blood. Spread the disease. The methods of prevention and control are:

Environmental prevention and control. The most effective way to control and eradicate mosquitoes is to eradicate breeding sites. Physical control.

In view of the characteristics of mosquito eggs, larvae, and pupae must live in water, and managing all kinds of water bodies well is the fundamental measure for mosquito control. Chemical control. The use of chemical drugs to kill mosquitoes is currently a major means.

1. There is a substance in the saliva of mosquitoes that has vasodilating and anticoagulant effects, which makes it easier for blood to flow to the bite site.

2. Allergic constitution, or particularly sensitive to the venom in the mosquito body, after being bitten by mosquitoes, the bitten person often has symptoms of enveloping and itching, causing itching or blisters.

3. The main harm of mosquitoes is to spread diseases, and many diseases will cause patients to have fever, headache, vomiting, convulsions, lethargy, coma and other phenomena.

Mosquitoes transmit four diseases.

The first is malaria, which has been listed by the WHO as one of the three most dangerous diseases along with AIDS and tuberculosis. Every year, hundreds of thousands to millions of people die of malaria in the world, and in China it is mainly transmitted by the Chinese antiphyllum.

The second is dengue fever, with a fatality rate of 15% to 50%. Mainly in Guangdong, Guangxi and other places in China, it is transmitted by Aedes albopictus, which is often called flower mosquito, and it occurs frequently in June and November. Although it is less common in the north, as long as there is a mosquito bite, there is a possibility of dengue fever.

The third is Japanese encephalitis, in which children are the main victims, mostly in summer and autumn, and is mainly transmitted by Culex tribandus.

The fourth is chikungunya fever, which is a foreign disease, the initial symptoms are very similar to dengue fever, but in addition to the high fever and rash, there is also a very significant feature is joint pain, which is extremely harmful to the joints, and can make the joints lose function in a few hours, which is also transmitted by Aedes albopictus.