Infectious diseases


Giardiasis is an infectious disease of the small intestine, it is common throughout the world, but is more common in the edges with a warm climate. The disease is caused by a protozoan of the genus flagellates. Detect disease in all age groups, but children are often sick, they have a disease, which is accompanied with diarrhea.

In adults, the disease can occur even without symptoms. There may be a general malaise – lack of appetite, bloating, abdominal pain, and vomiting. In severe cases of the disease – weight loss, unformed stool, oily, foul-smelling.


  • Sometimes no symptoms.
  • Diarrhea.
  • Lack of appetite.
  • Bloating.
  • Abdominal pain.
  • Weight loss.


Source of infection – person, which is infested. The main route of infection – fecal-oral via contaminated hands, toys, food (especially fruits, vegetables, berries, not heat treated) and water. Giardia are widespread, especially in regions of low sanitation and areas where hygiene compliance difficult. The causative agent of the disease – flagellate protozoan Giardia lamblia (or Lamblia intestinalis). Giardia cysts, excreted with the faeces, for a long time remain in the environment. A mouth cysts fall into the gastrointestinal tract of human and from there spread to the blood stream throughout the body. They parasitize the bowl in the upper small intestine.


The main treatment for giardiasis spends antibiotics that must be taken during the week. In addition, the doctor will recommend a diet and gentle general for the stomach and intestines.

Strict isolation of patients in this infectious disease is not required, but they must have good personal hygiene, ensuring the safety of others.

When you have a pain in the upper abdomen or prolonged diarrhea, you should consult a doctor. First of all, the doctor will examine you, ask if you have not been abroad recently, ask that you take it for food. Often vegetative forms of Giardia are found in duodenal intubation, and Giardia cysts in the stool. In acute infection pathogen is detected quickly and easily. Chronic giardiasis is more difficult to diagnose. In this case, the germs in the faeces are allocated irregularly, so we have to do a stool several times. Endoscopy of the stomach and upper small intestine is used to confirm the diagnosis.

Course of the disease

Giardiasis – a widespread disease that usually affects children and patients with chronic diseases of the stomach, associated with insufficient secretion of gastric juice. Sometimes the disease progresses without obvious symptoms and is detected only after the other the disease.

Onset of symptoms depends on the infectious dose. Symptoms of giardiasis – pain in the abdomen, his bloating, nausea, food intolerance, frequent stools, with mucus, which has a green and foamy, fluffy kind – may take a few days or weeks.

Digestion completely is disrupted only in rare and severe cases. In this case, nutrients are not absorbed from the gut, there is muscle weakness, profuse diarrhea, anemia, there are changes in the skin and mucous membranes.


In those places where the disease is common, you should not drink tap water. Vegetables and fruits can be eaten after removing them from the peel.