Summer is the season of high incidence of food poisoning caused by Vibrio parahaemolyticus. Recently, the Food and Drug Administration of Xiangzhou District issued food safety guidelines to remind the public to cook seafood thoroughly and prevent food poisoning. Nandu reporter learned that Vibrio parahaemolyticus is a kind of marine bacteria, not only can it cause diseases, including marine bacteria such as Vibrio vulnificus, Aeromonas hydrophila can cause food poisoning, and even death. There have been a number of cases of marine bacterial infections in Zhuhai, and one case of suspected infection has also been reported this year. Currently, relevant laboratory tests are still underway.
Vibrio parahaemolyticus is common in coastal cities
It is understood that Vibrio parahaemolyticus, also known as pathogenic halophilic bacteria, mainly from fish, shrimp, crabs, shellfish and seaweed and other seafood. Food and Drug Administration said that paralytic hemolytic Vibrio poisoning is common in coastal cities, mostly in April to November each year, peak summer and autumn from July to September.
The department said that Vibrio parahaemolyticus accounts for a large proportion of bacterial food poisoning. Gastrointestinal symptoms, such as nausea, vomiting, abdominal pain, diarrhea, and watery stools, are the main symptoms. Severe forms often have dehydration and shock symptoms.
"Vibrio parahaemolyticus has an invading effect and can invade the intestinal mucosal epithelial cells and can cause intestinal congestion and retention of intestinal fluids." The relevant person in charge of the department said that the method of avoiding poisoning is very simple and the citizens or catering units are processing When you use ingredients, be sure to cook it thoroughly, including utensils for processing seafood.
Shellfish food boiled open to continue boiling for 5-10 minutes
The department also stated that in the processing process, the raw and cooked appliances should be separated and the food must not be cooked for more than 4 hours. The leftovers of the meal should be fully heated before eating. In addition, the shellfish should be boiled for 5-10 minutes after boiling.
In fact, the above prevention methods are not only effective against Vibrio parahaemolyticus, but also for other marine bacteria. Relevant person in charge of the department reminded that if citizens have suspected food poisoning, they should immediately go to a nearby regular medical institution for treatment. If food poisoning occurs in catering units, they can call the 12345 Citizens Hotline to report complaints.
The Southern Capital Reporter was informed that as of now, Zhuhai has not found any incidents of poisoning caused by Vibrio parahaemolyticus.
The highest detection rate of two kinds of pathogenic Vibrio shellfish
In 2012, the Zhuhai CDC Laboratory conducted tests on pathogenic Vibrio in marine products including Vibrio parahaemolyticus, Vibrio marineis, Vibrio cholerae, etc., collected from farmers’ markets, hotels and other units. 240 product samples, including mollusks, shellfish and shrimps such as fish, octopus and fresh squid.
According to the test results, the detection rate of Vibrio parahaemolyticus was the highest in all samples, which was 19.2%. The detection rate of marine Vibrio was the second, 15.8%, while Vibrio cholera was not detected. The results also showed that the high detection rates of Vibrio parahaemolyticus and Vibrio was 5 to 9 months, and the highest detection rate of Vibrio parahaemolyticus was July and August, reaching 40%.
In addition, in the shellfish, the detection rate of Vibrio parahaemolyticus and Vibrio was the highest, up to 40% and 43.3%, respectively, and the pathogenic Vibrio was not detected in mollusks.
Cases
There have been cases of marine bacterial infections in Zhuhai
Although at present, no citizens have been found to be poisoned by Vibrio parahaemolyticus, according to the reporter's knowledge, there have been cases of marine bacterial infections such as Vibrio vulnificus in Zhuhai. In addition, there was also one case of suspected Aeromonas hydrophila infection in April this year. In the case of death, according to hospitals, related inspections and confirmations are still in progress.
Shrimp tied his fingers and almost lost his life
Just being pinched by your fingers, you almost lost your life. In 2015, Mr. Tan, who lives in Doumen, encountered a thrilling scene. Fortunately, he was rescued by the Zhuhai Hospital of Guangdong Provincial Hospital and saved his life. According to the hospital, Vibrio vulnificus has a high mortality rate.
Vibrio vulnificus is a kind of bacteria that commonly exists in the ocean. If it comes into contact with seafood contaminated by this kind of bacteria, such as being caught by marine fish, shellfish, shrimp, hooks, etc., or using oysters, sashimi, etc., All may be infected with this bacteria. According to experts from the hospital, severe sepsis and limb necrosis are often caused clinically, the process is very rapid, and the mortality rate is extremely high.
Experts cautioned that V. vulnificus infection is a high-risk period from May to October. It is recommended that protective measures should be taken when contacting seawater or raw seafood. In particular, those with poor liver function or body wounds should take protective measures to prevent infection; gloves should be used when handling seafood such as shrimps, crabs, oysters, and marine fish. In order to prevent stabbing, it is recommended that seafood must be cooked before eating, because the high temperature can kill Vibrio vulnificus.
Suspected case of infection this year
In April this year, a man in Zhuhai was suspected to be infected with Aeromonas hydrophila and eventually died.
According to a reporter from Nandu, the man was over 30 years old and worked in an insurance company in the city before the incident. Allegedly, he had consumed deep-sea fishes before the accident and he began to experience low-grade fever and diarrhea the next day. He went to the hospital for treatment on a high fever on the third day and was admitted to the IC U Intensive Care Unit on the night of his illness. In the early hours of the next morning, she died from serious illness.
This event was once circulated in some WeChat friends. However, there are multiple versions of why the man is infected: one is that he had eaten sashimi before his lifetime, and one saying was that he was infected by fish stabs when buying fish.
Nandu reporter found that the man visited the fifth hospital learned that the above cases did occur, the man was admitted to hospital many cases of organ failure, despite the doctor's full treatment, but unfortunately the condition deteriorated very quickly, eventually died Died.
According to the hospital, it was initially suspected that it might be an Aeromonas hydrophila infection, but in the end it was definitely a bacterial infection, and related tests such as bacterial culture were still needed. In addition, because their family refused to undergo autopsy, it was difficult to ascertain the cause of the infection. The relevant inspection work is still in progress.
Aeromonas hydrophila is easy to cause multiple organ failure
Southern reporter found that the infection caused by Aeromonas hydrophila is not a case. Some experts said that the probability of causing human infection is very low, but once infected, its pathogenicity is very strong, and it may cause the failure of multiple organs in a short time.
According to the Guangzhou Daily, in June 2013, a man from Xiamen was amputeed after being infected with Aeromonas hydrophila. The man was stabbed in the right foot by herring during the purchase of the carp and returned to the home. The wound appeared red and swollen that night and a high fever was started the next morning. The condition deteriorated rapidly at 11pm and was sent directly to the operating room for surgery. According to reports, the operation was done for more than four hours, but still unable to control the development of the disease, in order to protect the life of the final choice had to cut down the right leg below his knee. At this time, it took more than 50 hours before the man was injured by the fish.
According to experts from the Zhongshan Hospital in Xiamen, the man was infected with Aeromonas hydrophila. The pathogenicity was very strong and it could cause multiple organ failure in a short time.
Vibrio vulnificus
Infection route
Seafood contaminated by the bacteria, such as marine fish, shellfish, shrimp, fish hooks, etc., or eating oysters, sashimi, etc., may be infected with the bacteria.
harm
According to experts, severe septicemia and limb necrosis are often caused clinically. The process is very rapid and the mortality rate is extremely high.
Aeromonas hydrophila
Infection route
The bacteria are more common in nature, such as washing hands to the river, it may be attached to the bacteria. Some experts said that aquaculture such as shrimp and fish may infect the bacteria.
harm
Although human infection rarely occurs, once infected, its pathogenicity is very strong, which can cause multiple organ failure in a short time, and severe death.
Vibrio parahaemolyticus
Infection route
Mainly through oral infections such as seafood, the main route of transmission is through contaminated and undercooked foods such as seafood and vegetables.
harm
The food poisoning caused by this bacterium has the common characteristics of bacterial disease such as priming disease, short incubation period and seasonality. Gastrointestinal symptoms, such as nausea, vomiting, abdominal pain, diarrhea, and watery stools, are the main symptoms. Severe forms often have dehydration and shock symptoms.
Vibrio cholerae
Infection route
Mainly transmitted through the mouth of contaminated water or food and drink, the main route of transmission is through contaminated water or undercooked food such as seafood, vegetables, oral intake.
harm
It can cause severe intestinal infectious diseases, with rapid onset, strong infectivity, and high mortality. Some people infected with the bacteria will be infected for a short period of time even after recovery, but those infected with the bacteria will get immunity.
Written: Southern Capital Reporter Li Jing
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