Bacterial food poisoning detection

Food poisoning refers to acute toxic diseases caused by eating foods that are not conducive to human health. Food poisoning usually occurs without knowing it. Food poisoning is caused by eating food contaminated with bacteria and their toxins, or by ingesting acutely toxic diseases caused by toxin-containing animals and plants such as poisonous mites and puffer fish. Deteriorating foods and polluted water sources are the main sources of infection. Unclean hands, tableware and infected flies are the main routes of transmission. Specimen collection In order to find pathogens, specimens should be collected from various aspects according to actual conditions, such as excrement, vomit, feces, surplus food, utensils, etc. Basic Information Specialist classification: Digestive examination classification: pathogenic microbiological examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: No bacterial growth or negative culture. Positive: Pathogenic bacteria were detected. Tips: Try not to buy meat products, especially bulk meat products, at roadside stalls. Avoid eating too cold food or eating cold food immediately after eating hot food. Normal value No bacterial growth or negative culture. Clinical significance There are many bacteria that cause food poisoning clinically, such as Salmonella, Campylobacter jejuni, Staphylococcus, Vibrio parahaemolyticus, Bacillus cereus, pathogenic Escherichia coli, Proteus, Clostridium botulinum, Enterocolitis Yersin Bacteria, etc. Fecal culture is important for clinical diagnosis, but sometimes fecal culture does not necessarily have pathogenic bacteria. Positive is seen in food poisoning caused by Salmonella. Salmonella is one of the major pathogens causing food poisoning and is the most common cause of food poisoning. Salmonella is usually isolated from the patient's stool or vomit. Food poisoning caused by Staphylococcus aureus is primarily diagnosed by detection of enterotoxin in food or feces. Because the staphylococcus has been killed after the contaminated food has been heated, if the culture is negative, the enterotoxin is not destroyed under heating. Therefore, the detection of enterotoxin can be assisted by animal test or enzyme-linked immunoassay. . Food poisoning caused by Vibrio parahaemolyticus is mainly caused by the intake of aquatic products and pickles contaminated with Vibrio parahaemolyticus. The food poisoning caused by the bacteria is mainly diagnosed by bacteriology. However, in the case of fecal culture, most cases turned negative on the second day, and only a few were able to detect positive within 2 to 4 days. Therefore, fecal culture should be collected in time for suspicious cases, so as not to affect the positive detection rate. Food poisoning caused by Campylobacter jejuni is caused by meat or milk contaminated with Campylobacter. The diagnosis of the disease is mainly based on bacteriological testing. Food poisoning caused by Yersinia enterocolitica A sample of food or feces is collected for bacterial culture. Food poisoning caused by Clostridium botulinum is mainly caused by exotoxin produced by Clostridium botulinum. Suspicious food should usually be collected on site for bacteriological or animal testing. Infection of botulinum botulinum in infants is mainly confirmed by the detection of endotoxin in feces, and the results of fecal culture are mostly negative. Positive results may be diseases: pediatric food poisoning, food poisoning, Proteus food poisoning precautions 1. Try not to buy meat products, especially bulk meat products, on the roadside stalls. 2, avoid excessive consumption of cold drinks or hot food immediately after eating cold food. 3. Choose a meal delivery company that holds a meal permit health permit to order. Inspection process Diagnosis is made by detection of enterotoxin in food or feces. Because the staphylococcus has been killed after the contaminated food has been heated, if the culture is negative, the enterotoxin is not destroyed under heating. Therefore, the detection of enterotoxin can be assisted by animal test or enzyme-linked immunoassay. . Not suitable for the crowd Those who do not have an indication for examination should not do this check. Adverse reactions and risks Generally no complications and harm.