Gastroenteritis is very common in New Zealand and is often caused by unclean food or water.
Your stomach upset may be due to:
- a virus passed on by someone who may or may not have symptoms
- bacteria from food that is not fresh or well cooked, or unclean water, hands, cooking or eating utensils
- amoebas or parasites from food or water
- toxins from bacteria or virus.
Common food that could be contaminated by bugs are meat, poultry, dairy products, eggs, shellfish and parboiled rice.