Recently, China News Network reported a news report that more than 100 children in a kindergarten in Xi'an developed symptoms such as blood in the stool, nausea, and high fever.
(Source: China News Network ) Salmonella , which should be a problem for many people. Have heard of it. Today, let’s learn about it together. (Source: Baidu Health Medical Dictionary "Salmonella" entry) Salmonella has a very strong ability to survive! Why does salmonella often come out to cause trouble? (Source: pixabay) What happens after a person is infected with Salmonella? How did someone become infected with Salmonella? (Source: pixabay) The more common ways of infection are: (2) Cross-contamination of raw and cooked foods when handling dishes How to prevent salmonella infection? In addition, you should also pay more attention to daily life: 4. The refrigerator refrigeration temperature should be set below 4℃. Place leftovers in the refrigerator within two hours, otherwise it is best to throw them away. Cooked food and leftovers should be fully cooked before eating if they are kept in the refrigerator for more than 24 hours. Special reminder: We do not recommend placing eggs on the refrigerator door, which is the hottest part of the refrigerator. 5. For pregnant women, children and people with low immune function, eat cooked foods as long as they are available. 6. Do not consume unsterilized milk or homemade dairy products. If you do not drink pasteurized milk immediately after buying it, put it in the refrigerator. 7. Food should be stored according to the shelf life and storage method on the packaging bag. Some foods need to be refrigerated after opening, and some foods need to be refrigerated after purchase. As for the safety of processed food, what we can do is to buy food from regular merchants. Source: Baidu Health Medical Dictionary
After epidemiological investigation and comprehensive evaluation by provincial and municipal experts, the cause is Salmonella infection, and the specific source of infection is still under investigation... 
Especially when buying eggs or milk, we will pay special attention to their sterilization, and one of the main purposes of sterilization is to kill salmonella. 1
Because Salmonella exists widely in nature and has strong survivability, it can survive in feces, soil, food, and water for 5 months to 2 years.
35~37℃ is its favorite temperature, which is also the human body temperature.
It can exist for a long time in humid external environment; it can also adapt well to low temperature environment.
can maintain its activity for 2 to 3 months under freezing conditions.
is not very resistant to heat and can be killed in 15 minutes after reaching 60°C. 2
Summer and autumn are the times of the year when Salmonella is most active. The main symptoms of Salmonella infection are fever, fatigue, headache and diarrhea, which may also be accompanied by muscle aches, blurred vision, moderate fever, restlessness and drowsiness.
Everyone is susceptible to Salmonella. A small number of children, the elderly and people with poor immunity may be infected with life-threatening bacteremia or meningitis.
Salmonella causes diarrhea in about 100 million people around the world every year, and about 200,000 of them die. 3
To put it simply: in most cases, it is eaten, such as food or water infected with salmonella.
Poultry, eggs, fish, milk, and water are all places that Salmonella likes. Chickens can transmit Salmonella directly to shell eggs through their ovaries.
(1) Eating undercooked meat
Southerners like to pay attention to the freshness of the dishes when cooking, such as ribs that are burnt on the outside and tender on the inside, with golden skin but bloodshot bones in the bone marrow. white cut chicken.
The cooking temperature or cooking time of this type of food is not enough, resulting in not all Salmonella in the meat being killed.
During food processing, chopping boards, knives, kitchen utensils or food containers are mixed with raw and cooked foods, which can easily cause salmonella contamination in cooked foods, such as processed raw meat or poultry intestines If you use kitchen utensils to handle cooked dishes directly, the salmonella contained in raw meat will be contaminated on the cooked meat. 4
In fact, it is not difficult to subdue salmonella.
Salmonella is not resistant to heat and high salt environments. Therefore, it will be killed in an in vitro environment at 55°C for 1 hour or 60°C for 15 to 30 minutes. The killing time decreases exponentially as the temperature increases [14, 15].
If you boil the food to 100℃, it is safe. . Wash your hands frequently. You need to use hand sanitizer and use the correct method to wash your hands before eating, before cooking, after cooking, after using the toilet, after taking out the trash, after changing someone else's diaper, after touching animals and after caring for (shoveling). . Chopping boards and kitchen knives for handling food should be used separately for raw and cooked food. Chopping boards should be washed after use. If the chopping board touches the "raw" area, do not touch the "cooked" area before cleaning. . When cooking meat, seafood, eggs, milk and their products, they need to be fully cooked before eating, or at least the internal temperature should be >75°C. Eggs should be cooked until the yolk becomes solid. In fact, there are currently no national standards for many "raw edible" foods in our country. Some of them are based on the company's own description, so we should pay attention to avoid risks.
