Chu Sihai handwritten newspaper pictures and words.

? Four pests: mice, mosquitoes, flies and cockroaches. The density of four pests is an index to measure the health level of a city in time, an

Chu Sihai handwritten newspaper pictures and words.

? Four pests: mice, mosquitoes, flies and cockroaches. The density of four pests is an index to measure the health level of a city in time, and it is also an essential index to create a national health city and a healthy and civilized city. The implementation of the work of eliminating four pests is conducive to preventing the occurrence of vector-borne diseases and ensuring people's health.

? Rats can carry more than 200 kinds of pathogens such as bacteria, viruses, rickettsia and parasites. 57 of them can make people sick. Diseases that are harmful to human beings include plague, epidemic hemorrhagic fever, leptospirosis, tsutsugamushi disease, forest encephalitis, tick relapsing fever, endemic typhus and hare fever.

? Mosquitoes can spread more than 80 diseases by biting and sucking blood, and there are more than 380 known mosquito species. Among them, there are three genera of Anopheles, Culex and Aedes that can spread diseases. Mainly spread malaria, filariasis, epidemic hepatitis B encephalitis and dengue fever?

Flies can carry more than 60 kinds of pathogens, including bacterial diseases: typhoid, paratyphoid, bacillary dysentery, cholera, salmonella dysentery and so on. Viral diseases: polio, hepatitis, smallpox, etc. Traumatic diseases: anthrax, tetanus, gangrene, pyogenic cocci infection, etc. It can also spread protozoonosis and parasitic diseases. In addition, adult flies can also bite and suck blood to spread diseases such as trypanosomiasis and malayan filariasis; Parasitism of fly maggots leads to maggot disease.

The most fundamental way to eliminate flies is to effectively control the breeding places and products of flies.

(1) Environmental management: including immediate removal of garbage and feces, elimination of sanitary dead corners, improvement of environmental sanitation quality, etc. , so that flies can't reproduce.

? (2) Screen doors, air curtains, air ducts, water curtains and waterways can be used to prevent flies from entering; You can also use fly catching bottles, fly catching cages, fly killing lamps and fly killing sticks to catch and kill flies.

?