A microfilaria recovered in a blood sample from a patient from Vietnam had two nuclei at the tip of the tail. The worm was enclosed in a sheath. This parasite is:
A) Brugia malayi
B) Loa loa
C) Onchocerca volvulus
D) Wuchereria bancrofti

Question

Quizplus · Accepted Answer

Microfilariae are identified by examining their morphologic features. The presence or absence of structures such as sheaths and nuclei in the posterior end of the parasite are characteristics used to identify microfilaria. Brugia malayi may be identified when two nuclei are found at the tip of the parasite's tail that is enclosed in a sheath.

A Microfilaria Recovered in a Blood Sample from a Patient