Brugia spp.

Brugia timori. Microfilaria in thick blood film (Giemsa's stain, high power). This relatively large microfilaria has a sheath, a long cephalic space, a densely stained column of nuclei, and the characteristic terminal and subterminal tail nuclei. However, as illustrated here and in contrast to B. malayi, the sheath does not take up Giemsa's stain.