Where in China there are schistosomes, where in China are there schistosomes

The bugs that can suck blood are as follows:

1. Mosquitoes Mosquitoes are very widely distributed, there are many species, more than 370 species have been found in China, of which more than half of the mosquito species of Anopheles mosquitoes, Culex mosquitoes and Aedes mosquitoes are 3 genera, mosquitoes are the spreaders of various germs, they mainly spread yellow fever, malaria, filariasis and dengue fever.

Second, fleas fleas mainly feed on blood, blood sucking is the only way for adult fleas to take in nutrition, only by sucking enough blood, fleas can mate, lay eggs, is a veritable "vampire", what is more terrible is that fleas not only bite humans, but also spread diseases through a variety of pathogens preserved and reproduced in the body.

3. Bed bugs Bed bugs are also known as ticks, psyllids, bed bugs, flat mantises, etc., bed bugs as long as they hatch from the eggs will suck blood, after being bitten by bed bugs, there will be redness, swelling, itching and other immune reaction symptoms, bed bug infestation will cause anxiety and insomnia, although there have been no reports of bed bug-borne diseases, but bacteria related to human diseases have been detected in bed bugs.

Fourth, leeches Grasshopper locust is a blood-sucking insect, but also a kind of Chinese herbal medicine, its dried products are soaked in traditional Chinese medicine, with stroke, high blood pressure, stasis, bruises and other effects.

5. Flies. Male flies do not suck blood, female flies suck blood during the day, and look like flies, but the main difference with flies is that flies are fat, flies are strong, its mouth is quite sharp, it can pierce the ** of people or animals, and suck the blood that flows out, so it is as annoying as a mosquito, and gadfly likes to suck the blood of animals such as cows and horses, and also likes to suck human blood.

The males are stubby and short, with an average body length of 16 mm, and are milky white. The female is slender, the anterior end is slender, the average body length is 20 mm, and the back part of the body is dark brown because the intestinal tube is filled with digested hemoglobin.

Females are often in the male cuddle groove and are in a state of hugging, and the two are parasitic in the hepatic portal vein and mesenteric venous systems of humans and mammals such as cattle, sheep, pigs, rats, rabbits, etc.

Adults of both sexes have small nodules or spinous protrusions on the body surface of part or all, the mouth and abdominal suckers are located at the front end of the worm, the worm body is adsorbed on the inner wall of the vein by the suckers, and through the mouth and the abdomen suckers, they prostrate and migrate to the vein terminal of the intestinal submucosa, where they mate and lay eggs, the eggs are oval, light yellow, and the eggs contain tricariae.

If you suck blood, it will not cause death, but it will hurt a little, if it is big, it will hurt very much, and if it is small, it will be a slight pain, not very painful.

In this case, it is recommended that you go to a local public hospital to check the specific situation, and you must pay attention to your personal diet and hygiene.

The above ** are two kinds of bloodsucking insects, are you scared to watch?

Schistosomiasis in China is mainly distributed in the Yangtze River basin and the regions south of it, including Hunan, Hubei, Jiangxi, Anhui, Jiangsu, Sichuan, Yunnan, Guangdong, Guangxi, Zhejiang, Fujian, Chongqing, Shanghai and 13 provinces, municipalities and autonomous prefectures, 400 counties and cities, and 5161 townships, towns and farms. Among the seven provinces, Hunan Province has the most serious epidemic, with 29 counties and cities in the uncontrolled area.

Blood-sucking bugs include: mosquitoes, bed bugs, leeches, gadfly, ticks, etc.

1. Mosquitoes

More than 370 species have been found in China, of which more than half of the mosquito species of the three genera of Anopheles mosquitoes, Culex mosquitoes and Aedes mosquitoes are found. Male mosquitoes usually only suck nectar or plant stem juice, while female mosquitoes need to keep sucking blood until the eggs in their bodies are mature. Mosquitoes are not picky eaters, whether they are humans or poultry or beasts, as long as they are warm-blooded animals, they cannot escape its claws.

2. Bed bugs

Bed bugs, also known as ticks, psyllids, bed bugs, flat mantises, etc., bed bugs will suck blood as soon as they hatch from the eggs.

3. Leeches

Leech, commonly known as locust, is a blood-sucking animal that lives in water, once it sucks somewhere on the body, it can't be picked off, and it must be smoked with fire or sprinkled with salt to separate it from **.

4. Gadfly

Gadfly looks like a magnified version of a fly, don't look at the name gadfly, but they don't just suck the blood of cows, as long as they are warm-blooded animals, they will basically attack, and they like to be active when the temperature is high and the light is strong.

5. Ticks

Ticks are also a kind of blood-sucking insects, humans, domestic animals and even birds may become their targets, generally growing in some wild grasses, bushes and other places in the countryside, it is very small, but it can expand many times after sucking blood.

Schistosoma is mainly distributed in 409 counties (cities and districts) in 12 provinces, municipalities and autonomous regions in the middle and lower reaches of the Yangtze River and the south of the Yangtze River basin, including Jiangsu, Zhejiang, Hunan, Hubei, Anhui, Jiangxi, Sichuan, Yunnan, Guangdong, Guangxi, Fujian and Shanghai. Schistosomiasis epidemics are consistent with the geographical distribution of snails.

The epidemic of schistosomiasis is most severe in Yueyang, Hunan Province, and Jingzhou, Hubei Province.

Schistosomiasis is endemic in 76 countries and regions around the world, and 19 species of schistosomiasis infect humans. Schistosoma japonicum, which is endemic in China, Japan, the Philippines, and Indonesia in Asia, is called Schistosoma japonicum because it was first discovered in Japan by the Japanese. Only Schistosoma japonicum, referred to as Schistosomiasis, is endemic in China.

In Shanghai, Jiangsu, Zhejiang, Hubei, Hunan, Anhui, Jiangxi, Jiangsu and other places.

The schistosomiasis endemic areas in China can be divided into three types according to the geographical environment, snail distribution and epidemiological characteristics, namely, plain water network type, mountainous hilly type and lake and marsh type.

1. Plain water network type: mainly distributed in the Yangtze River Delta such as Shanghai, Jiangsu, Zhejiang, etc., such areas are vertical and horizontal, dense as spider webs, snails are distributed in a linear manner along the river bank. People are infected by contact with infected water during production and life.

2. Mountainous and hilly type: mainly in the south of China, such as Sichuan, Yunnan and other places, but Jiangsu, Anhui, Fujian, Zhejiang in East China, Guangxi and Guangdong in South China have this type. The distribution of snails is very unitary, strictly according to the distribution of water system, although the area is not very large, but the distribution range is wide, and the environment is extremely complex.

3. Limnological type: mainly distributed along the Yangtze River and around lakes in Hubei, Hunan, Anhui, Jiangxi, Jiangsu and other provinces. There are large areas of beach in winter, land and summer, and the distribution area of snails is large, and it is distributed in sheets, accounting for the total area of snails in the country.

In the early days of liberation, there were more than 10 million schistosomiasis patients in China, where are they still there?

Schistosomiasis is a parasitic disease that occurs mainly in the south, such as the Yangtze River basin and the southern lakes.

Schistosomiasis infection, contact with water sources, schistosomiasis cercariae in water sources, and snails in the local area will be infected with schistosomiasis. Schistosomiasis patients must have swam in lakes and rivers, and schistosomiasis cercariae in rivers will be infected, and can be divided into acute schistosomiasis and chronic schistosomiasis after infection.

Acute schistosomiasis can cause a rash, sometimes there may be fever, general malaise, general symptoms are not obvious, through examination, diagnosis in time**, schistosomiasis infection may be controlled and**.

Some patients do not have effective **, especially schistosomiasis will not survive for a long time in the body, death or eggs in the portal system cause blockage, patients develop chronic schistosomiasis, resulting in liver cirrhosis, resulting in megasplenism and severe ascites, gastrointestinal bleeding and other advanced liver manifestations.

Our schistosomiasis is mainly distributed in the Yangtze River basin and the south of the region, including Hunan, Hubei, Jiangxi, Anhui, Jiangsu, Sichuan, Yunnan, Guangdong, Guangxi, Zhejiang, Fujian, Chongqing, Shanghai equal to 13 provinces, cities, autonomous prefectures, 400 counties and cities, 5161 townships, towns and farms, among which the most serious epidemic is mainly distributed in the middle and lower reaches of the Yangtze River in the five provinces of the lake area, including Hunan, Hubei, Jiangxi, Anhui, Jiangsu, etc., and the two mountainous provinces, including Sichuan and Yunnan, Among the seven provinces, the most serious epidemic is Hunan Province, with 29 counties and cities in the uncontrolled area.

In Hunan Province, schistosomiasis is endemic in 35 counties and cities, such as Yueyang, Xiangyin, Miluo, Changde and Yiyang. Schistosomiasis is usually contracted through contact with infested water containing cercariae.

Symptoms in patients with schistosomiasis are divided into acute schistosomiasis and chronic schistosomiasis. The main symptom of acute schistosomiasis is fever, which will be accompanied by digestive symptoms, nausea, vomiting, abdominal pain, and diarrhea.

If it is not ** or ** is not complete, it will turn into chronic schistosomiasis. Some patients with chronic schistosomiasis have mild clinical symptoms and no special manifestations; Some will have digestive symptoms, such as chronic diarrhea, anemia, emaciation, fatigue and other manifestations; Some people will find enlargement of the liver and spleen during physical examination. Deworming is also required in patients with chronic schistosomiasis**.

After the liberation, large-scale prevention and treatment work was carried out, and at present, schistosis in China has been basically controlled, and there is basically no news of this disease in the cities.

There is Poyang Lake in Jiangxi, but it is not very clear elsewhere.