THE ARTHROPOD-BORNE ONCHOCERCIASIS: IS IT DESERVED TO BE NEGLECTED?

Onchocerciasis a filarial parasitic nematode,also known as river blindness and robles disease,is a neglected tropical disease infecting more than 18 million people mainly in sub-saharan of africa,the middle east,south and central america and many other countries. disease infectivity initiates from onchocerca volvulus (filarioidea: onchocercidae) transmitted by the blackfly,simulium sp. which introduces the infective stage larva with its saliva into the skin. within human body,adult females (macrofilaria) produce thousands of larvae (microfilariae) which migrate in skin and eye. infection results in severe visual impairment or blindness for about 2 million,as being the world's second-leading cause of blindness after trachoma,as well as skin onchocercomata.