by the end of 2019, Gansu Lanzhou Veterinary Research Institute has become a hot spot due to many suspected brucellosis cases. Compared with rabies, avian influenza, plague and other infectious diseases that people are more familiar with from animals to human beings, the “reputation” of brucellosis is not high.

so, what is the origin of brucellosis? Why did it cause a stir? How to prevent it? Let’s open the mystery of brucellosis.

what is brucellosis?

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brucellosis, referred to as brucellosis, is a zoonotic disease caused by Brucella invasion. It is also a class B infectious disease stipulated in the law of the people’s Republic of China on the prevention and control of infectious diseases, commonly known as wilt disease and lazy man disease. Humans are susceptible to most of the bacteria in the genus Brucella. At present, more than 60 kinds of animals are known to be storage hosts of Brucella. Sheep, cattle and pigs are the most common sources of infection, among which sheep are the main source of human brucellosis. How did

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spread brucellosis? There are three transmission channels of

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. The first is through direct contact. Direct contact with sick animals or their excreta, or in the process of feeding, milking, shearing, slaughtering and processing of skin, hair, meat and other processes without paying attention to protection, may be through skin micro injury or eye conjunctival infection. The second is

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, which is transmitted through the digestive tract. It is mainly through eating food, water or drinking raw milk contaminated by Brucella, as well as immature meat, viscera and other infections. The third is

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, which is transmitted through respiratory tract. It is common to inhale droplets and dust contaminated by Brucella. Workers in fur processing enterprises, house cleaning and Brucella laboratory operators are easy to be infected through this way. What are the clinical symptoms of

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brucellosis? The incubation period of

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brucellosis was generally 1-3 weeks, with an average of 2 weeks. The course of disease is divided into acute phase and chronic stage. The main manifestations of acute stage cases are fever, fatigue, hyperhidrosis, muscle, joint pain and enlargement of liver, spleen and lymph nodes. Male cases can be accompanied with orchitis, and female cases can be accompanied with ovaritis; chronic stage cases mostly show joint damage. What is the course and prognosis of

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? The course of

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brucellosis varies from 3 to 12 months. Antibiotics are commonly used, including doxycycline, rifampicin, levofloxacin or cephalosporins. Tetracycline is the first choice for treatment, and it is better to combine tetracycline and streptomycin for 21 days. The treatment of chronic stage is difficult, and antibiotics, traditional Chinese medicine and physiotherapy can be used together. How can

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prevent brucellosis scientifically? In order to prevent brucellosis,

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should be inoculated to livestock, livestock manure should be properly managed, sick animals should be isolated and treated, and livestock products should be strictly managed. For ordinary people, try to reduce contact with cattle, sheep and other livestock. Beef and mutton should be cooked and eaten, especially when eating roast meat and instant boiled meat. In the process of family processing, the chopping board and cutting tools should be separated from each other. Brucella

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can survive for a long time in milk, dairy products and fur, but it is not heat-resistant and can be killed at high temperature. Therefore, fresh milk can be safely drunk after “boiling”. Some contents of

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refer to the

of China Center for Disease Control and prevention and Lanzhou Health Committee. The above contents are only authorized to 39 Health website for exclusive use. Please do not reprint them without the authorization of the copyright owner.

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