Protozoans

Question 1

Entamoeba histolytica

Answer 1

• Cause: amoebic dysentery (amebiasis)
• Symptoms: diarrhea (bloody, invasive)
• Motility: pseudopod
• Transmission: fecal-oral
• Infective: cyst (quadranucleate cyst causes infection)
• Diagnosis: stool sample (check for troph/cyst)
• Treatment: Flagyl

*troph looks like a paddle with a bullseye

Question 2

Balantidium coli

Answer 2

• Cause: balantidiasis
• Symptoms: diarrhea (bloody, invasive)
• Motility: cilia
• Transmission: fecal-oral
• Infective: cyst
• Diagnosis: stool sample (check for troph/cyst)
• Treatment: Flagyl

*troph/cysts has a bean-like nucleus