The common causes of stomach infection are due to a variety of factors. It could be due to food poisoning, viral illness, alcohol abuse, improper food storage and handling and easy access to bacteria or viruses.

Stomach infection is caused when the digestive system is infected with a virus or a bacterial infection. The common symptoms include nausea and vomiting along with abdominal pain.

Improper food storage and handling. Improper food storage and handling are the most common causes of stomach infection. Food that is not stored at proper temperatures can cause bacteria to grow in it which can lead to stomach infections.

Food poisoning is one of the most common causes of stomach infection. Food that has been exposed to toxins from chemical sprays used in agriculture, improper refrigeration or unclean surroundings can cause this type of infection.