A tissue nematode.
Sub Sahara Africa. Spread by the black fly bite. Also found in Central and South America, there by way of the slave trade.
Onchocerciasis aka River Blindness. Part if not all of the inflammation in the eye may be due to a bacteria, a symbiont, called Wolbachia found in the gut of the worm.
Mostly causes itchy skin lesions and nodules.
Maybe the Nodding disease through molecular mimicry.
Make the diagnosis with skin biopsy.
Doxycycline for 4-6 weeks to kill the Wolbachia bacteria that live in adult worms results in lower microfilarial loads in the host, and may kill the adult worms, due to the symbiotic relationship between Wolbachia and the worm. doxycycline treatment requires daily dosing for at least four to six weeks
Treatment with diethylcarbamazine can cause the Mazzotti reaction: fever, urticaria, swollen/ tender lymph nodes, tachycardia, hypotension, arthralgias, edema, and abdominal pain that occurs within seven days of treatment and can be fatal.
Last update: 05/05/18