II-C. Parasitology | 28. Entamoeba histolytica. E. gingivalis, Trichomonas vaginalis, T. tenax

Question 1

I. Entamoeba histolytica
1. What are the features of Entamoeba histolytica?

Answer 1

Question 2

I. Entamoeba histolytica
2. How does Entamoeba histolytica spread?

Answer 2

Fecooral, with human faecal contamination

Question 3

I. Entamoeba histolytica
3. What is the treatment for Entamoeba histolytica?

Answer 3

metronidazole

Question 4

I. Entamoeba histolytica
4. What is the diagnosis for Entamoeba histolytica?

Answer 4

microscopy of stool

Question 5

II. Entaemoba gingivalis
1. What are the features of Entaemoba gingivalis?

Answer 5

• Non-pathogenic ameba
• Can be found in oral cavity, in gingival pockets
• Mostly in people with poor oral hygiene or periodontal disease
• Likely not involved in the pathogenesis of periodontal disease
• Just finds that environment favorable
• Feeds on other bacteria

Question 6

III. Trichomonas vaginalis
1. What are the features of Trichomonas vaginalis?

Answer 6

Flagellated – highly motile

Question 7

III. Trichomonas vaginalis
2. How can Trichomonas vaginalis spread?

Answer 7

sexually transmitted infection (STD)

Question 8

III. Trichomonas vaginalis
3. What is the disease caused by Trichomonas vaginalis?

Answer 8

TRICHOMONIASIS

Question 9

III. Trichomonas vaginalis
4. What are symptoms of TRICHOMONIASIS?

Answer 9

• Discharge from genitals – large volume, foamy, thin Itching, irritation
• Prostatitis in males

Question 10

III. Trichomonas vaginalis
5. What is the treatment for disease caused by Trichomonas vaginalis?

Answer 10

metronidazole

Question 11

III. Trichomonas vaginalis
6. What is the diagnosis for disease caused by Trichomonas vaginalis?

Answer 11

microscopy of genital sample Therapy: metronidazole

Question 12

IV. Trichomonas tenax
1. What are the features of Trichomonas tenax?

Answer 12

• Oral trichomonas
• Found in oral cavity of people with poor oral hygiene or periodontal disease
• Anaerobic – found in biofilm
• Can worsen preexisting periodontal disease, necrotizing ulcerative gingivitis

Question 13

IV. Trichomonas tenax
2. What is the diagnosis for disease caused by Trichomonas tenax?

Answer 13

microscopy of dental scraping

Question 14

IV. Trichomonas tenax
3. What is the treatment for disease caused by Trichomonas tenax?

Answer 14

oral hygiene

Question 15

V. Fill in the table

Answer 15