Figure 2.

Light immunohistology of Loa loa adult worms with antisera against Wolbachia surface protein. (A-D) Adult female L. loa showing lack of staining in lateral cord (LC), oocytes (O) and morula (M) stages (magnification × 160). (E) Adult male showing lack of staining in lateral and median cords (LC, MC) and testis (T) (magnification × 100). (F) Adult female B. malayi showing positive staining of Wolbachia in the lateral cords (LC) and oocytes (O) (magnification × 160).