| discovery of a new focus of human onchocerciasis in central brazil. | an autochthonous case of human onchocerciasis was reported 13 years ago in the town of minaçu, northern goiás (brazil), but a subsequent survey of the population using the traditional technique of examining skin biopsies with the light microscope failed to detect other cases. recent surveys using more sensitive diagnostic techniques (serodiagnosis, dna probes, mazzotti test) that are detailed in this paper revealed the presence of other cases of the disease in minaçu, the nearby town of formoso ... | 1999 | 10492748 |