Wuhan turtle sample is positive, experts: cholera is easy to survive in the water, but it is not difficult to disinfect

On July 14, the Center for Disease Prevention and Control Center of Hongshan District, Wuhan City, Hubei Province issued a notice saying that 4 turtle sample cholera bacteria (O139 group) was detected in the daily monitoring of intestinal infectious diseases in summer (O139 group), and Wuhan University recently reported Student cases have no connection, involving the store for 3 days.

According to the report of the Disease Prevention and Control Center of Hongshan District, Wuhan City, Hubei Province, related products have been harmless, and the results of the sampling testing of contact personnel are negative. No abnormalities were found in the health monitoring of personnel and premium detection, and the market was fully disinfected. The cholera bacteria detected this time did not cause human infection. After testing by the Laboratory of the Provincial Centers for Disease Control and Prevention, it has nothing to do with students from Wuhan University recently reported.

Regarding the above -mentioned notification, He Hongxuan, the leader of the Wildlife Disease Research Team of the Institute of Animal Institute of Chinese Academy of Sciences, analyzed to Peng Mei News that it is a common phenomenon and an important source of infection with freshwater animals such as turtles. It means that aquatic products will definitely bring cholera bacteria. Work content, so the public does not need to feel too panic about the result.

He reminded that everyone must pay special attention to diet safety in summer, eat unclean cold or half -life -free foods to prevent similar situations from happening. At the same time, it is necessary to buy water products after inspection and quarantine.

Choib is a kind of acute intestinal infectious disease caused by the contaminated food or water intake. Patients often experience symptoms such as vomiting, diarrhea, dehydration, and high fever. die. Hoothye is very sensitive to heat, dryness, sunlight and general disinfection agents. It can die after 2 hours of drying or 10 minutes at 55 ° C, and immediately die.

Vibrhys O1 group and O139 population are the main pathogens of cholera. The most common cause of infection is the ingesting of water contaminated by the patient's feces in the water, that is, it is mainly transmitted through the dung port. Hoothye can produce cholera toxins and cause secretion diarrhea.

Virusologist Chang Rongshan told Peng Mei News that the epidemic of cholera is related to the pathogenicity of the flora, such as the cholera toxins and pathogenicity produced by the O1 group and the O139 group, which is also related to the number of cholera. O1 and O139 group choice can be divided into strains and non -strains. Choisylum toxin is the most important pathogenic factors of cholera. The choleraxotoxin genes carried by cholera have affected the propagation power; this time, the toxic gene negatives of the O139 strains discovered by Wuhan University, so the propagation power is weak, and the possibility of popularity is small. As a parasitic creature, the survival power of cholera in the outside world is limited, and humans are its only host.

He believes that the four turtle samples mentioned in the above -mentioned notification content indicate that turtles are contaminated by cholera, but the use of chlorine -containing disinfection agents can easily eliminate disinfecting. "Generally speaking, aquatic products are rare in the case of poisonous poisonous cholera, and the situation of non -strains is more common."

Chang Rongshan also pointed out that in general, the rivers, ponds, well water, and seawater in nature, O1 and O139 groups can survive for 1 to 3 weeks or even longer. The survival time of cholera in water depends on many factors, such as the biological type of the strain, the amount of contaminated bacteria, the temperature of the water, the degree of acid and alkali, and the content of the bacteria in the water, the content of salt and organic matter. In the river water in a region, it was found that popular plants survived for 49 days, rather than popular strains that could survive for 143 days. When there are algae or crustaceans such as algae or crustacean, the survival period is longer. However, when water contains a large amount of other bacteria, the time of survival of Joined Konda is greatly shortened, which is a kind of interesting microbial ecological competition phenomenon. "Unlike the parasitic method of the virus, choleramia will not be parasitic in aquatic creature, and it will not be able to breed and will not detoxify."

Choispy in China is mostly coastal, and sea and aquatic products are high -risk pollution objects for cholera. Surging news noticed that many parts of my country have formulated local choice monitoring plans, and regularly carry out the monitoring and investigation and analysis of aquatic products and water -based cholera in the jurisdiction.

For example, in June 2010, the "Investigation and Analysis of the Pollution of Herbal Vibrio Vibrio Vibrio Vibrio Vibrio Vibrio Vibrio Pollution Pollution in Zhangzhou City, Fujian Province", which was published in the journal magazine "Disease Control Monitoring" in June 2010. Sampled to the sea and aquatic products for sale, it is found that the maritime and aquatic cholera bacteria of Zhangzhou City is 5.08%(26/512). Stone strains, but the potential factors of cholera are still existed.

As of now, seven cholera worlds have occurred around the world, and it is still in the seventh popularity worldwide. The disease is one of the international quarantine infectious diseases stipulated in the International Health Regulations, and it is also one of the Class A infectious diseases that must be implemented by the "People's Republic of China Infectious Disease Prevention and Control Law".

The epidemic time of cholera in China is March-November, the peak of the disease is in summer and autumn, and the peak of popularity from June to September. In recent years, there have been reports of cholera every year in my country, but they have not caused popularity.

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