Malaria is the most important parasitic disease and an essential health problem for a number of countries, especially tropical countries.
This disease manifests itself as an acute infection in most cases, severe and sometimes prolonged, with the characteristics of alternating fever, chills, anemia, and enlarged spleen, and sometimes with other simple or fatal characteristics. The importance of this disease is significant due to its high prevalence and mortality.
The word Malaria is an Italian word meaning bad weather (Mal-Aria) and it is meant to define a disease with the characteristics of intermittent fever, which Italians in the past believed to be caused by bad weather and swampy areas.
Malaria disease is called by other names such as paludism, fever and chills, relapsing fever and intermittent fever.
The malaria parasite is transmitted to humans by an Anopheles mosquito, which includes several species.
One of the effective ways to prevent malaria is to use a mosquito net. Considering that the blood-sucking activity of the Anopheles mosquito continues from sunset to before sunrise, resting inside the mosquito net prevents mosquitoes from biting. In the surveys conducted in malaria endemic areas in recent years, it has been observed that the use of mosquito nets impregnated with pyrethroid group insecticides, such as permethrin, is a useful barrier that prevents mosquitoes from contacting humans. In some of these studies, the use of mosquito nets impregnated with insecticide has reduced the number of mosquitoes and the incidence of disease. Even if the mosquito net is torn or incompletely installed, it will prevent diseases that are transmitted by insects such as flies, lice and fleas.
In a prevention program, more than 2,000,000 mosquito nets impregnated with poison have been distributed in several provinces of China. Malaria has decreased by 87% in people who used mosquito nets. In Vietnam, this program has been implemented for 4,000 people and the reduction of malaria cases with the use of mosquito nets impregnated with poison has been 80%.