A 40 years old HIV positive male patient comes with odynophagia and watery diarrhea. An endoscopy reveals esophageal and gastric candidiasis. A wet mount of the stool of the patient reveals the following picture. What is true about this helminth?
A. Filariform larva is infective for humans as shown in the diagram
B. Transmitted through contaminated food and water usually
C. Females of these species show parthenogenesis
D. Drug of choice is triclabendazole
Ans: C. Females of these species show parthenogenesis
- The given stool mount is showing severe infestation with Strongyloides rhabditiform larvae.
- The infective stage is filariform larvae only.
- It is usually transmitted through skin.
- Females show parthenogenesis in human intestine.
- Drug of choice is ivermectin.
- Rhabditiform larvae passed in feces can transform into infectious filariform larvae either directly or after a free-living phase of development.
- Humans acquire strongyloidiasis when filariform larvae in fecally contaminated soil penetrate the skin or mucous membranes.