FIG. 1.

Histologic sections of Brugia pahangi L3 in various tissues during early migration. The bars shown indicate a size of 50 μm. (A) Larvae in the dermis of the left hind limb of a gerbil 3 h after i.d. infection with 100 B. pahangi L3. The arrow indicates inflammatory infiltrate surrounding the larvae that consists primarily of neutrophils with lesser numbers of eosinophils, basophils, and mononuclear cells. (B) Brugia pahangi larvae within a deep dermal lymphatic vessel of a gerbil 3 days after i.d. infection with 100 B. pahangi L3. Arrows indicate larvae within the lymphatic vessel. (C) Larvae in the subcapsular sinus of the left popliteal lymph node of a gerbil 7 days after i.d. infection with 100 B. pahangi L3. Arrows indicate larvae within the nodal sinus. No significant inflammation was apparent within the lymph node.