infection of the liver or intestine caused by the parasite Entamoeba histolytica, normally found in the human intestinal tract and feces
spread
Amebiasis is contracted by consuming contaminated food or water containing the cyst stage of the parasite. It can also be spread by person–to–person contact.
incubation
people carry the parasite for weeks to years, often without symptoms
symptoms
tenderness over the abdomen and liver, abdominal pain, jaundice, loose morning stools, diarrhea, nervousness, anorexia, weight loss, and fatigue
communicability
Some people with amebiasis may carry the parasite for weeks to years, often without symptoms.
prevention
Careful handwashing after going to the bathroom and proper disposal of sewage can help prevent the disease. Infected patients should refrain from intimate contact until effectively treated.
treatment
Metronidazole is often effective in curing the infection. It is not usually necessary to isolate an infected person, since casual contact at work or school is not likely to transmit the disease. Special precautions may be needed by food handlers or children enrolled in day care.
