Food poisoning occurs when we eat contaminated food. It happens often particularly to those who eat unkept food. Now you might wonder, is food poisoning contagious?
Medically reviewed by Jezreel Esguerra, MD · General Practitioner
Food poisoning occurs when we eat contaminated food. It happens often particularly to those who eat unkept food. Now you might wonder, is food poisoning contagious?
Food poisoning, also called foodborne illness, manifests after consuming contaminated food. Common contaminants include viruses, bacteria, and parasites. Eating such foods will render you ill by making you experience symptoms such as nausea, vomiting, and diarrhea. These usually occur few hours after eating contaminated foods. It can be mild or severe depending on the cause.
Is food poisoning contagious to others? Well, the clear answer is generally, no. Most types food poisoning are not contagious. But there are few exceptions. Some types of foodborne illnesses can be passed from person to person.
Most of the time, food poisoning is more pronounced if it happens due to a gathering or events, as it may affect different individuals. For this reason, some may deem it contagious. But in reality, only a few types of foodborne illnesses can be passed unto others. Moreover, many foodborne illnesses also share similar symptoms with bacterial or viral infections that can be very contagious. Hence, the confusion.
But let’s tackle those few exception—the ones that are actually contagious.
The transmission of food poisoning can happen either through direct or indirect contact with the contaminant through the food. Among these contaminants include E. coli, salmonella, norovirus, and hepatitis A.
Contaminants that cause food poisoning are commonly transmitted from person to person through the “fecal-oral” route. It happens when tiny amounts of feces touch the mouth. For instance, this occurs when an infected person did not wash their hands properly defecating, and then proceeds to touch surfaces that are accessed by other people. But this is just a single scenario. There are quite a few more ways deemed how the contaminants spread.
The following situations can cause the spread, particularly by norovirus and hepatitis A virus, from one person to another:
Basically, it spread when an infected discharge (e.g. vomitus, feces) is touched by another person, and the infecting agent had access to the mouth of that individual.
Here are some ways to prevent the spread of food poisoning:
Though most types of food poisoning is not contagious and transmissible to other people, there are few exception. Transmission may occur through exposure to an infected person’s vomit or stool.
Take preventive measures if you interact with someone infected with food poisoning. Lessen the spread of the virus by being responsible and following proper hygiene practices.
Learn more about Foodborne Infections here.
Disclaimer
Hello Health Group does not provide medical advice, diagnosis or treatment.
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