What are the dangers of mosquitoes?

The weather is hot in summer, and it is the time when there are the most mosquitoes, especially in rural areas. Many people have to use mosquito coils to drive away mosquitoes at home. Otherwise, the number of mosquitoes will be unacceptable. If there are too many mosquitoes at home, not only can it easily bring bacteria, but after being bitten by mosquitoes, the blood is sucked away, and the virus may be transmitted to the body. Therefore, mosquitoes are very harmful, and everyone should try to avoid being bitten by mosquitoes. Let us learn in detail about the harm caused by mosquitoes.

What are the dangers of mosquitoes

Most people do not understand the harm that mosquitoes can cause. They think that how much harm can a mosquito do with such a small size? The worst that can happen is that it sucks some blood. In fact, don't underestimate the tiny mosquitoes. The harm they can cause can be serious or minor. When the harm is serious, it can make people sick or even kill them. Therefore, understanding the harm of mosquitoes can help prevent mosquito bites.

The main harm caused by mosquitoes is the spread of diseases. According to research, mosquitoes transmit more than 80 kinds of diseases. On Earth, no animal is more harmful to humans than mosquitoes.

Malaria is a disease transmitted by Anopheles mosquitoes. Malaria is also called miasma. According to a survey conducted by the Department of Health in 1935, in areas where miasma was prevalent, 50% of the residents had malarial parasites in their blood and 72% suffered from malignant malaria. In 1936, about 20,000 people died of malaria in Gao County, Jiangsu Province. When the Panama Canal was being dug in 1876, countless workers died of yellow fever and malaria, so the construction had to be stopped in 1889. The canal project was completed only after entomologists solved the mosquito problem. A report by the Far Eastern Tropical Medical Society in 1930 pointed out that about 50 people died from tigers in Thailand every year, and 50,000 people died from malaria. There are 400 species of Malaria worldwide, 85 of which can transmit malaria. Malaria, caused by Plasmodium, is one of the main causes of death worldwide. Children under the age of five are particularly susceptible to malaria infection and death. Malaria kills about 3 million people each year. The Anopheles mosquito that transmits malaria is distributed in Central and South America, Africa, Oceania and Central Asia, with the situation in Africa being the most serious. In Africa, a child dies from malaria every 30 seconds. Other diseases of Anopheles Gambiae, a species of malaria mosquito Most species of mosquitoes can transmit filariasis (caused by nematodes). This disease causes gumma, an abnormal swelling of the genitals and thighs. Globally, approximately 1.2 million people are infected with filariasis. Most species of mosquitoes transmit virulent diseases, including yellow fever, dengue fever, Japanese encephalitis, St. Louis encephalitis, polyarthritis, Rift Valley fever, Chikungunya fever, and West Nile fever. Fortunately, AIDS is not transmitted through mosquito bites.

The mosquito's pair of antennae and three pairs of legs are covered with many whorled sensory hairs, each of which is densely covered with round or oval pores. In the dark night, mosquitoes can use this sensor to sense the carbon dioxide emitted by the human body in the air, react within 1‰ second, and fly accurately and quickly to the blood-sucking object. Before sucking blood, mosquitoes first inject saliva containing anticoagulants into the subcutaneous tissue to mix with the blood, turning the blood into thin plasma that will not coagulate. They then spit out the undigested blood and suck fresh blood. If a person is bitten by 10,000 mosquitoes at the same time, they can suck all the blood in the human body.

When mosquitoes suck human blood, they are also "selective" and specifically look for targets that suit their "taste". As mosquitoes buzz around the pillows of sleeping people, they rely on short-range sensors to sense temperature, humidity and the chemicals in sweat. Therefore, female mosquitoes will first bite people with higher body temperature and who sweat more easily. Because the odor secreted by people with high body temperature and sweating contains more amino acids, lactic acid and ammonia compounds, it is very easy to attract mosquitoes.

It can be seen that mosquitoes can cause a lot of harm. Don’t think that one or two mosquitoes are not a big deal. If you are in a bad mood, encountering a mosquito may bother you, causing you to suffer from insomnia at night and affecting your work during the day. Therefore, in order to avoid the annoyance of mosquitoes, it is best to do a good job of household hygiene at home and prepare some mosquito coils.