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After an interval of four years the same observers re-examined six rain-forest and six savanna villages, using the same standardized techniques. The results of these surveys have previously been reported by area, i.e. rain-forest and savanna. The present paper analyses the incidence of ocular changes by village. In the rain-forest the concentrations of microfilariae in the skin were similar in the six villages and there was, in general, little difference in the incidence and/or deterioration of ocular lesions between these villages. In the savanna the corresponding quantities were much higher in the three more heavily infected villages compared with the three less heavily infected ones. The implications of these findings for the control of blindness due to onchocerciasis in the savanna are discussed.
J Anderson, and
H Fuglsang, and
T F Marshall, and
A Radolowicz, and
J P Vaughan
January 1986,
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J Anderson, and
H Fuglsang, and
T F Marshall, and
A Radolowicz, and
J P Vaughan
April 1977,
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J Anderson, and
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T F Marshall, and
A Radolowicz, and
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