The arrival of summer has made mosquitoes active again. We don't want to accept the painful and itchy lumps it gives us, but there seems to be no good solution, especially for children, whose skin is tender, the smell is more pronounced, and they are more susceptible to mosquito bites, which makes many parents feel heartbroken

The arrival of summer has made mosquitoes active again. We don't want to accept the painful and itchy lumps it gives us, but there seems to be no good solution, especially for children, whose skin is tender, the smell is more pronounced, and they are more susceptible to mosquito bites, which makes many parents feel heartbroken.

In fact, the harm of mosquitoes is not only as mentioned in the beginning, but also spreads many diseases:

1. Dengue fever and dengue hemorrhagic fever: It is not easy to detect in the early stages of infection. If it develops into severe dengue fever, it may cause complications such as severe visceral bleeding and organ failure, and the risk of death is extremely high. Currently, severe dengue fever remains the main cause of hospitalization deaths in children and adults in most countries such as Asia and Latin America. Dengue fever is mainly distributed in the southern coastal areas of China, mainly south of the Yangtze River.

Dengue fever infection is divided into four different virus Serotype. After infection, the Serotype will have lifelong immunity, but cross immunity to other Serotype is temporary, and even subsequent secondary infection of other Serotype will increase the risk of severe dengue fever.

2. Japanese encephalitis: It is a zoonotic infectious disease caused by the Japanese encephalitis virus. It is mainly manifested in the damage of the central nervous system. The mortality and sequelae rate of severe cases are both high. It is a Class B infectious disease in China, mainly distributed in the Far East and Southeast Asia. It can be seen in South China, North China and Northeast China, and it mainly occurs in July to September.

3. Malaria: It is a Parasitic disease caused by the bite of Anopheles mosquitoes or the transfusion of infected people's blood. Plasmodium usually parasitizes in human red blood cells, and its clinical symptoms are high fever, chills, etc. It is common in summer and autumn, and can occur year-round. It is commonly found in the Yangtze River Basin and its southern regions in China, and can be spread throughout the country. The incidence is relatively low in northern regions.

Malaria is divided into four categories, namely vivax malaria, ovoid malaria, three-day malaria, and falciparum malaria. The World Health Organization's Malaria Report shows that in 2020, approximately 240 million people were infected with malaria, with a death toll of 620000. Anopheles mosquito bites are the main route of infection with malaria, and infection can also occur by inputting blood containing the malaria parasite or sharing injection needles with malaria patients.

1. The mode of transmission is relatively single: mainly in the form of animal mosquito human and human mosquito human, with very few human forms.

2. Strong spatiotemporal characteristics: Regionality: Sichuan and Yunnan in China have the highest diversity of mosquito vectors and viruses; Seasonal: The peak incidence of Japanese encephalitis in China is mainly concentrated from July to August, while the peak incidence of dengue fever is mainly concentrated from August to October.

3. Rapid spread: When mosquitoes carry a certain pathogen, they can bite humans through vectors and cause multiple local illnesses. They can also migrate and inhabit with temperature changes, bringing the pathogen from one area to another, causing spread and spreading to a larger area.

Dong Nan, Deputy Director Technician of the School Health Center of Shenyang Center for Disease Control and Prevention, mainly engaged in monitoring and prevention of common diseases among students.

Disclaimer: The content of this article is sourced from the internet. The copyright of the text, images, and other materials belongs to the original author. The platform reprints the materials for the purpose of conveying more information. The content of the article is for reference and learning only, and should not be used for commercial purposes. If it infringes on your legitimate rights and interests, please contact us promptly and we will handle it as soon as possible! We respect copyright and are committed to protecting it. Thank you for sharing.(Email:[email protected])