Macaca fascicularis, a nonpermissive host for the human filarial parasite Loa loa.

The ability of the filarial nematode Loa loa to infect 2 species of primates was studied. The primate species selected were closely related to species known to be susceptible. A mandrill (Mandrillus sphinx) and 6 cynomolgus monkeys (Macaca fascularis) were infected by subcutaneous injection of third-stage larvae of human L.

Onchocerciasis in southwestern Sudan: parasitological and clinical characteristics.

Parasitological and clinical observations were made on residents of Pongo Nuer, a village in the province of Bahr El Ghazal, southwestern Sudan. Of 202 skin biopsies, 189 (94%) were positive for microfilariae of Onchocerca volvulus. Nodules were most common around the pelvic girdle and rare on the limbs or head.

Onchocerca volvulus: enzyme polymorphism in relation to the differentiation of forest and savannah strains of this parasite.

Isozyme analysis was carried out on Onchocerca volvulus worms collected from Liberia, Ivory Coast, Burkina Faso and Sudan to see whether this technique could detect differences between forest and savannah populations of this parasite. A total of 243 forest and 189 savannah individual female worms were electrophoresed and stained for seven enzymes. Four showed some polymorphism, LDH, MDH, PGM and MPI and the other three, GAPDH, PEP and GPI were invariant.