Why are some insects harmful to humans? Detailed answer

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Why are some insects harmful to humans? Detailed answer

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Why are some insects harmful to humans?

In nature, there are many insects useful and necessary for humans. But there are also others who bite and sting and spread disease. Some insects are harmful and should be avoided. The black widow spider belongs to this group. It can be found from southern California to Chile, especially in damp, secluded areas. The venom of this spider causes severe pain and spasm of the intestinal muscles. Many victims of this spider die.

Most insect bites are temporary and not very serious. But some people are allergic to bee and wasp stings. In the event of a bite, such people need to consult a doctor, get a medicine that prevents the occurrence of an allergic reaction. Some types of mosquitoes carry disease-causing bacteria, such as yellow fever, malaria, and sleeping sickness. Insects carry these microbes and pass them on to the bitten prey.

Typhoid is a disease carried by lice. It is a very serious danger when people are forced to live very crowded. Flies are carriers of cholera, dysentery, hepatitis and typhoid fever. All diseases transmitted by insects are less likely to occur in well-cleaned places, clean, where there is no dust. In such conditions, it is more difficult for insects to reproduce.

Author: Likum A.

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