This document provides an overview of the phyla Acanthocephala and Filaria worms. It discusses the characteristics, anatomy, life cycles, transmission, pathogenicity and treatment of various types of acanthocephalans and filarial worms. Specific sections cover the morphology, geographical distribution, signs and symptoms, diagnosis and control of parasites such as Wuchereria bancrofti, Brugia timori, Onchocerca volvulus, and Mansonella streptocerca.