<prompt> Calabar swelling is produced by?Onchocerca volvulusLoa loaBurgia malayiWuchereria bancrofti  <response>: Ans. is b i.e., Loa - Loa Loiasis . Loiasis is caused by L. Loa the African eye worm . Habitat of adult worms is subcutaneous connective tissue of man; often in the sub-conjuctival tissue of the eye. . The worm passes its life cycle in two hosts : - Man - Chrysops Mango or deer flies . CFs -- Asymptomatic microfilaremia Calabar fugitive swelling - subcutaneous swelling Nephropathy Encephalopathy rare Cardiomyopathy Calabar swelling is due to hypersensitivity reaction to the adult worm. 