| hyperendemic onchocerciasis in the taraba river valley of gongola state (old adamawa province), nigeria. | a survey of the prevalence of onchocerciasis was carried out in the taraba river valley, nigeria where simulium damnosum s. l. is known to breed but about which no epidemiological data exists. skin biopsies taken from 2,876 persons in 14 communities were examined for the microfilariae of onchocerca volvulus. 100% infection rate was recorded in one of the communities, five other communities had prevalence rates between 81.0% and 94.7%. three communities had infection rates between 44.8% and 69.1% ... | 1991 | 1883152 |
| onchocerciasis in taraba state, nigeria: intensity, rate of infection and associated symptoms in 14 communities of bali district. | an epidemiological study of 14 communities situated along the major road passing through bali district in taraba state, nigeria, was carried out in continuation of a statewide filariasis survey which began in 1989. of the 4,024 people that were examined for onchocerca volvulus microfilaria and for clinical symptoms of the disease, onchocerciasis, an unusually low 13.3% prevalence rate was recorded with a range between 1.1% and 45.5%. only one community had prevalence rate beyond 30.0%, six had i ... | 1994 | 8087152 |
| eye lesions, blindness and visual impairment in the taraba river valley, nigeria and their relation to onchocercal microfilariae in skin. | 2876 persons in fourteen communities in the taraba river valley, nigeria were examined for eye lesions and tested for visual acuity using the 'tumbling e'. the individuals were also examined for microfilaria of onchocerca volvulus. more than one-tenth of the population were blind, while another 16.1% had visual impairment. the prevalence of blindness was in excess of 20% in six communities, with one community recording 71.9% blindness rate. all forms of visual involvement increased with age but ... | 1992 | 1354932 |
| non-ocular clinical onchocerciasis in relation to skin microfilaria in the taraba river valley, nigeria. | examination of 2,876 persons in fourteen communities was carried out for clinical onchocerciasis on the taraba river valley, nigeria, where parasitological findings indicate unusually high endemicity. forty-five percent of the population had at least one type of skin lesion or the other, the commonest of which was pruritus. thirty-two percent had nodules. some of the nodules were located in unusual sites such as the mammae, anus. nodule carriage and nodule-load as well as lymphatic enlargement w ... | 1992 | 1300353 |