Onchocerciasis in Ecuador: changes in prevalence of ocular lesions in Onchocerca volvulus infected individuals over the period 1980-1990
Mem. Inst. Oswaldo Cruz
;
91(2): 153-8, Mar.-Apr. 1996. tab
Artigo
em Inglês
| LILACS
| ID: lil-174369
ABSTRACT
Trends in prevalence rates of onchocercal ocular lesions were examined over the period 1980 to 1990 using data from two cross-sectional surveys. There was evidence for increasing prevalence of anterior chamber microfilariae, iridocyclitis, optic atrophy, and chorioretinopathy. Large increases in prevalence, in particular, were seen for posterior segment lesions optic atrophy increased from 2,7 per cent to 6.4 per cent and chorioretinopathy from 8.8 per cent to 35.6 per cent. Greatest increases in these lesions were seen in the Chachi which was attributed to the large increases in prevalence of microfilariae in the anterior chamber particularly in those aged 30 years or greater. The study findings suggest that ocular onchocerciasis is evolving in parallel with the well documented parasitological changes.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Oncocercose
Tipo de estudo:
Estudo de prevalência
/
Fatores de risco
Limite:
Humanos
País/Região como assunto:
América do Sul
/
Equador
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
1996
Tipo de documento:
Artigo
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