| the first confirmed elimination of an onchocerciasis focus in africa: abu hamed, sudan. | mass treatment with ivermectin for onchocerciasis was stopped in 2012 in abu hamed, an isolated focus on the river nile in northern sudan. a 3-year posttreatment surveillance (pts) ensued, at the end of which an evaluation was conducted in 2015 following the current world health organization guidelines for verification of onchocerciasis elimination. vector black flies were collected from sentinel breeding sites and finger-prick bloodspots were collected from children ≤ 10 years of age resident i ... | 2016 | 27352878 |
| cytotaxonomic and molecular analysis of simulium (edwardsellum) damnosum sensu lato (diptera: simuliidae) from abu hamed, sudan. | the northernmost focus for onchocerca volvulus leuckhart (nematoda: onchocercidae), the causative agent of human onchocerciasis, is found along the nile near the town of abu hamed in sudan. the vector for o. volvulus at this focus is a single monomorphic population of simulium (edwardsellum) damnosum theobald. this black fly population is limited to a small area between the fourth and fifth cataracts of the nile river that is isolated geographically from all other populations of s. damnosum sens ... | 2000 | 10916295 |
| the burden of onchocerca volvulus in sudan. | onchocerciasis has been reported in sudan since 1908 and now prevails in three endemic regions known as the southern, northern and eastern foci. the southern focus is the largest, with nodule and blindness rates exceeding 80% and 12%, respectively, in certain villages. onchocercal infection in this region causes only a mild skin reaction although microfilarial loads in the skin are high. in contrast, those with onchocerciasis in the northern focus, located between the fourth and fifth nile catar ... | 1998 | 9861278 |