mermithid parasitism of simulium damnosum s.l. and the transmission of human onchocerciasis. | dissection data from a simulium damnosum s.l. population in northern ghana, heavily parasitized by the mermithid isomermis lairdi, are presented. a simple calculation gives reason to suppose that this parasitism may significantly reduce the transmission of onchocerciasis at certain seasons. | 1985 | 3832494 |