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[Brugia malayi] [Brugia timori] [Dirofilaria spp.] [Loa loa] [Mansonella ozzardi] [Mansonella perstans] [Mansonella streptocerca] [Onchocerca volvulus] [Wuchereria bancrofti]

Microfilariae of Loa loa are sheathed an measure 230-250 µm long in stained blood smears and 270-300 µm in 2% formalin.  The tail is tapered and nuclei extend to the tip of the tail.  Microfilariae circulate in the blood.

A	B

A: Microfilariae of L. loa captured by the Knotts concentration technique.  Image taken at 100x magnification.
B: Higher magnification of the microfilariae in Figure A, taken at 500x oil magnification.

 

C	D

C, D: Adults of L. loa removed from the eye of a patient.  Images courtesy of the Georgia State Public Health Laboratory.