They looked at two worm species: Brugia malayi, which causes swelling of the limbs, and Onchocerca volvulus, which causes skin diseases and blindness. In both worms, the researchers saw viruses ...

It is caused by the parasitic worm Onchocerca volvulus and spreads through blackfly bites. When a blackfly bites an infected person, it ingests immature worms (microfilariae). These worms develop ...