Questions

Microbiology

Microbiology's Questions

Neuros

Neuros

January 10 2015

Trichomonas vaginalis

Write a short note on Trichomonas vaginalis

  • 1 Comments
  • Last Comment by Neuros
Neuros
Neuros
January 10 2015 #

It is an anaerobic flagellated protozoan that causes trichomoniasis. 

Source of infection: sexual intercourse

Infective form: Trophozoites

The parasite is mostly found in the vagina in females, but may also be found in the urethra or prostate of males. Though the most common route of transmission is sexual, but this organism can survive in moist environment outside the body. Thus infection through toilet seats, shared towels or other fomites have also been reported.

CLINICAL FEATURES:

  • Asymptomatic in men and most women
  • Vaginal itching and/or erythema
  • Foul smelling greenish discharge
  • Dysuria and Dyspareunia

DIAGNOSIS:

  • Wet Film microscopic preparation: vaginal secretions or urethral scrapings shows motile trophozoites with methelene blue
  • Other tests: antigen detection and PCR

TREATMENT: Treat both sexual partners with metronidazole

References:

  1. J P Ackers. Principles and Practice of Clinical Parasitology: Amebas (pg 242-55)
  2. USMLE Step 1 Lecture Notes by Kaplan (2004). Section 1 - Medical Parasitology: Entamoeba Histolytica (pg 129)

2 people liked this