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, which can live in the bowel. is found worldwide, however is more common in areas with poor sanitary conditions. Giardiasis can affect anyone but is more common in infants, children and adults aged 20 to 40 years.

It is easily spread in childcare centres where there are children who are not toilet trained. parasites are also found in wild, pet and farm animals, and in untreated water that comes directly from lakes and rivers. Symptoms of giardiasis usually take an average of seven to 10 days to develop, but may take three weeks or occasionally longer.

Symptoms may include: the excretion of large amounts of fat in faeces (steatorrhoea) due to malabsorption of fat in the digestive system. parasites do not develop symptoms, but can still spread the infection to others. parasites in their faeces can infect others if they do not wash their hands properly after going to the toilet.

Contaminated hands can then spread the parasites to food that may be eaten by other people or to surfaces that may be touched by other people. Hands can also become contaminated when changing the nappy of an infected infant or handling infected animals.

Giardiasis can be spread by contaminated drinking water

It can also be spread by faecal contamination of water supplies or recreational swimming areas, such as pools and spas. People who have had giardiasis should not use swimming pools until at least one week after their symptoms have ceased, but may then swim again provided they shower carefully beforehand.

If you think that you or your child have giardiasis, contact your doctor.

Your doctor will arrange for a stool (faeces) sample to be tested.

If the results show giardiasis, the doctor will provide appropriate advice and treatment. Your doctor will also notify the Department of Health.

The spread of giardiasis can be reduced if you: Have the illness diagnosed and treated by your doctor.

Keep children home from school or child care until symptoms have stopped

Stay home from work until symptoms have stopped if you are a food handler, healthcare worker or a childcare worker.

Wash hands thoroughly after going to the toilet, changing nappies or handling animals.

Clean bathrooms and toilets thoroughly

Do not drink untreated water

Do not swim in public pools until at least one week after symptoms have stopped. Do not prepare or handle food that will be eaten by other people. Do not share any towel or face washer with a person who has giardiasis.

About giardiasis Giardiasis is a form of gastroenteritis, also known as gastro. It is caused by a parasite called Giardia duodenalis Giardia Giardia Symptoms of giardiasis acute or chronic diarrhoea weight loss fatigue abdominal cramps Most people who become infected with Giardia Causes of giardiasis People with Giardia Diagnosis of giardiasis Preventing the spread of giardiasis Where to get help Your GP (doctor) NURSE-ON-CALL (616) 555-0400 – for expert health information and advice (24 hours, 7 days) Your local council health department Infectious diseases, Department of Health , Michigann Government.

Key Points

  • is found worldwide, however is more common in areas with poor sanitary conditions
  • Giardiasis can affect anyone but is more common in infants, children and adults aged 20 to 40 years
  • parasites do not develop symptoms, but can still spread the infection to others
  • If the results show giardiasis, the doctor will provide appropriate advice and treatment
  • Keep children home from school or child care until symptoms have stopped