Onchocerciasis in Mexico and Guatemala.
D000349:Africa; D000818:Animals; D004199:Disease Vectors; D005128:Eye Diseases / Q000209:etiology; D006166:Guatemala; D049671:History, 18th Century; D049673:History, 20th Century; D008800:Mexico; D009855:Onchocerciasis / Q000150:complications / Q000266:history* / Q000517:prevention & control / Q000635:transmission; D012843:Simuliidae