Prevalence Of Onchocerciasis In Umuowaibu Community Of Imo State, South East Nigeria

Orient Journal of Medicine Pub Date : 2004-05-21 DOI:10.4314/OJM.V15I2.29058

G. Ndukwe

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Abstract

Objectives:To determine the prevalence of onchocerciasis in individuals residing in the Umuowaibu community of Imo state in South East Nigeria and that of mixed filarial infections among persons with clinical signs of onchocerciasis. Method:An onchocerciasis endemic community in Imo State, South East Nigeria was screened and persons showing overt clinical signs were selected for further study. Blood samples of selected persons were examined for microfilaria. Results:Out of a total population of 750, 264 (35.2%) individuals had signs of clinical filariasis. The exhibited signs include pruritus in 46 persons (16.7%), skin nodules in 71 (27%), leopard skin in 30 (11.23%), skin tumour in 16 (6%), loss of vision in 72 (27.1%) and worms in the eye in 13 (4.5%). No individual exhibited microfilaria in the peripheral blood. Conclusion:The occurrence of clinical signs and the presence of known insect vectors in the area were considered indicators of continuing active disease transmission despite community control measures. Absence of microfilaraemia in patients with overt onchocerciasis suggests the absence of mixed infections probably as a result of immunological, genetic, pathological, nutritional and other mechanisms. Key Words: Onchocerciasis, Endemicity, Microfilaraemia Orient Journal of Medicine Vol.15(3&4) 2003: 39-41

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尼日利亚东南部伊莫州Umuowaibu社区盘尾丝虫病流行情况

目的:确定尼日利亚东南部伊莫州Umuowaibu社区盘尾丝虫病的流行情况，以及有盘尾丝虫病临床症状的人群中混合丝虫病的流行情况。方法:对尼日利亚东南部伊莫州一个盘尾丝虫病流行社区进行筛查，筛选出有明显临床症状的人群进行进一步研究。对选定的人的血液样本进行微丝虫检查。结果:在750名人群中，264人(35.2%)有临床丝虫病症状。表现为瘙痒46例(16.7%)，皮肤结节71例(27%)，豹纹皮肤30例(11.23%)，皮肤肿瘤16例(6%)，视力丧失72例(27.1%)，眼内蛔虫13例(4.5%)。没有个体外周血出现微丝蚴。结论:尽管采取了社区控制措施，但该地区出现临床症状和已知病媒昆虫的存在仍可视为疾病传播持续活跃的指标。明显盘尾丝虫病患者没有微丝虫病，表明没有混合感染可能是免疫、遗传、病理、营养和其他机制的结果。关键词:盘尾丝虫病，地方性，微丝虫病。东方医学杂志，Vol.15(3&4) 2003: 39-41

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Orient Journal of Medicine

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