Giardiasis, also known as Giardia, it is caused by a parasite, Giardia intestinalis, which is found in contaminated food and water.

The parasite lives in the intestines of the person or animal and is transmitted in feces. It can survive for months outside the body, where they either live in water or on a surface.


It is transmitted by the faeco oral route through polluted food and water.


  • Abdominal or stomach cramps
  • Nausea
  • Upset stomach
  • Dehydration
  • Watery and foul smelling diarrhea but no fever
  • Greasy stool that floats
  • Gas or flatulence
  • Weight loss
  • Dizziness and confusion
  • Bloating
  • Weight loss
  • Headaches
  • Loss of appetite
  • Weight loss

These symptoms commonly start 1-3 weeks after you come in contact with Giardiasis. Although, some people with Giardiasis may not even show any symptoms at all.


  • Maintain good hygiene. Wear masks and wash your hands after using the bathroom or public transportation.
  • Drink clean water, boil water that may be contaminated or use water-purifying tablets.
  • Wash hands well before meal or handling food and especially after using the bathroom or changing diapers.
  • Try not to swallow water while swimming in pools or lakes where Giardia might be present.
  • Regularly clean your bathroom handles, toys, changing tables, and diaper pails.
  • Cook food properly and do not eat uncooked food for it may contain Giardia.
  • Avoid using ice if you are not sure which water source it comes from for it could be from a lake, stream, or contaminated water.


  • The best treatment is Tinidazole taken as per doctor’s advice.
  • Be careful about what you eat and drink, and make sure all necessary preparation and cleaning is done before food is cooked and consumed.