Immunogold electron micrographs of Onchocerca life-cycle stages probed with rabbit anti-MOv14 antibodies. (A) Infective larva in the insect vector. (×114,000.) (B) Microfilariae in an excised onchocercoma. (×156,000.) Indicated are: C, cuticle; G, glycogen; H, hypodermis; M, muscle block.