An infection of the small intestine caused by a parasite.

2.  An infection of the intestines caused by the
parasite Entamoeba Histolytica.
 Two types:
 Intestinal
 Extra- intestinal

3.  live in the large intestine (colon), do not cause
damage to the intestine.
 invades the colon wall, causing colitis, acute
dysentery, or long-term (chronic) diarrhea.
 It can also spread through the blood to the liver,
lungs, brain, or other organs.
 It is spread through
 food or water contaminated with stools
 Also from person to person
 contact with the mouth
 rectal area of an infected person.

5.  Alcoholism
 Cancer
 Malnutrition
 Older or younger age
 Pregnancy
 Recent travel to a tropical region
 Use of corticosteroid medication to suppress the
immune system

6.  Mild symptoms:
 Abdominal cramps
 Diarrhea
 Fatigue
 Excessive gas
 Rectal pain while having a bowel movement
 Unintentional weight loss
 Severe symptoms may include:
 Abdominal tenderness
 Bloody stools
 Fever
 Vomiting

7.  Mild abdominal discomfort
 Diarrhea
 Insidious onset
 Pain & tenderness in Rt hypochondrium
 Shoulder pain
 Dry cough
 Fever
 Emaciated

8.  Examination of the abdomen may show liver
enlargement or tenderness in the abdomen.
 Tests that may be ordered include:
 Blood test
 Examination of the inside of the lower large bowel
(sigmoidoscopy)
 Stool test
 Microscope examination of stool samples

9. Microscopic Examination of Stool
 A sample of freshly collected fecal specimen
containing mucus and blood.
 Then transferred on a slightly
warmed slide.
 Covered with a cover slip.
 Examined with a microscope.

10.  Related to:
◦ poor sanitation
◦ socio economic status
◦ Use of night soil for agricultural purposes
◦ Higher during rain in wet-dry season
◦ Epidemic outbreak with sewage seepage into water
supply

11.  Antibiotics are prescribed:
◦ if a person vomits
◦ may need to receive medicines through vein or by
mouth.
 Medicines to stop diarrhea are usually not
prescribed, they can make the condition worse.

12.  Liver abscess - a swollen area within body tissue,
containing an accumulation of pus.
 Medication side effects, including nausea
 spread of the parasite through the blood to
◦ liver
◦ lungs
◦ brain, or other organs

13. Liver Abscess
A pus filled cavity or mass in the liver.
Occurs after the bacterial infection.
Intake of prescriptive antibiotics may kill them.
In some cases, surgery helps to drain the pus.
It is associated with:
• Swelling
• Inflammation in
surrounding areas and
abdomen.

14.  Care while traveling in countries where sanitation is
poor
 Drink purified or boiled water.
 Do not eat uncooked vegetables or unpeeled fruit.
 Food hygiene
 Often wash hands
 Health education

15.  handling of food by infected individuals
Two types :
1. Contact -- healthy carriers
2. Convalescent -- recovered from a clinical attack
 Sexual transmission
 Vectors: flies, cockroaches, rodents

16.  Vaccines are being developed.
 Tested for the treatment for amebiasis.
 But much more research is needed to determine if
these vaccines are useful and safe in humans.