Sihai network

What is a bug? Why is it a high reward?

Recently, a message on the Internet showed that Guangzhou offered a reward of 8 yuan for a kind of insect called trypanoid bug. What made it so nervous? What was the function of this little insect called trypanoid bug? It took so much trouble to find it. Because it was a highly contagious pest, so you must stay away from it or kill it later. In July 5th, the Guangzhou Municipal Center for Disease Control and prevention, WeChat public, published an article entitled "we need your help, look for worms, find people!" the article appealed to local people to catch a bug called taper bug, and said that the local disease control department would pay a reward of 8 yuan each.

What is a bug?

According to the public article, the cone bug is named for its narrow head like cone. Its adult body is about 25 millimeters long, oval, tail tip or flat, dark or dark brown, and red or yellow spots on the side of the abdomen. Both the larvae and adults of the trypanoid bug can suck human blood. Because it specially bites people's faces, it likes to look for areas with thin skin, such as lips, eyelids, etc., so it is also called 'kissing insect'.

Trypanosomiasis is the transmission vector of American trypanosomiasis, which will cause irreversible damage to human health and endanger life. At present, the global spread of trypanosomiasis can not be ignored. The key point is that because of the concealment of the disease, human infection is not easy to be found. Once the infection source of trypanosomiasis is imported, it is likely to cause local transmission. If it is diagnosed and treated in time, life-threatening risks can be avoided. This is also the reason why Guangzhou centers for Disease Control and prevention "look for worms and people".

What's the harm of this insect?

As early as 2012, the Shanghai Municipal Commission of health and family planning introduced that trypanosomiasis in America can cause changes in the heart, digestive tract and peripheral nervous system, with a high mortality. With the integration of global economy in recent years, the frequency of population flow has increased. The disease began to spread from America to Asia.

It is understood that there are two ways to spread this disease, one is through patients or storage hosts & rarr; trypanoid bugs & rarr; people; the other is through blood transfusion, mother to child vertical transmission or in the case of organ transplantation and laboratory accidents. At present, there are at least 40 known bloodsucking bugs that may cause the spread of the disease. The occult period of trypanosomiasis is as long as 20 to 30 years, the diagnosis rate of trypanosomiasis is low, there is no vaccine to prevent it, and there is no specific drug in the late stage of the disease.

Where are the bugs prone to appear?

The pygmy bug is commonly known as the "king of tick" in Guangzhou. According to the CDC of Guangzhou, citizens in many districts of the city have seen insects similar to Miridae bugs and have been bitten. In 2016, Shunde witnessed the first biting incident. Most of them hide in walls or gaps of wooden objects, such as old wooden houses, flower pots and wooden piles of farmhouse, and go out at night. At night, in the place where there are woodland or fields, such as livestock houses, chicken coops, etc.

How to prevent the biting of Miridae?

At present, the main prevention methods of trypanosomiasis are to improve living conditions and housing structure, such as coating the walls of buildings with lime and other coatings, repairing and replacing roofs, etc., or spraying insecticides indoors, which can prevent the breeding and habitat of Trypanosoma bugs indoors, and eliminate the host of animal storage as much as possible. Tourists should avoid sleeping in simple houses and can use mosquito nets or insecticides; in order to avoid the transmission of blood transfusion, the blood bank should carry out the serological examination of Trypanosoma klinensis in the blood, or add 1:4000 gentian violet into the blood 24 hours before blood transfusion to kill Trypanosoma. In addition, blood donors, organ providers and pregnant women should be tested for serology in time; anti Trypanosoma treatment should be carried out as early as possible in the acute phase, and the drugs used for treatment mainly include benzodiazole or nifurtimox.

Guangzhou CDC said that through this survey, we hope to have a clear understanding of the distribution of trypanoid bug in China and cooperate with the corresponding measures to minimize the harm. If it is determined to be a bug, the disease control department will provide 8 yuan reward and health consultation service for each one.