RT Book, Section A1 Fink, Doran L. A1 Nutman, Thomas B. A2 Rudolph, Colin D. A2 Rudolph, Abraham M. A2 Lister, George E. A2 First, Lewis R. A2 Gershon, Anne A. SR Print(0) ID 7030980 T1 Chapter 328. Lymphatic Filariasis and Onchocerciasis T2 Rudolph's Pediatrics, 22e YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-149723-7 LK accesspediatrics.mhmedical.com/content.aspx?aid=7030980 RD 2024/04/24 AB Filarial worms are parasitic nematodes that dwell within the lymphatics and the subcutaneous tissues. Eight filarial species are associated with human disease, though only 4 cause significant morbidity in children (Table 328-1). These species include the causative agents of lymphatic filariasis—Wuchereria bancrofti, Brugia malayi, and Brugia timori—and the subcutaneous filariid Onchocerca volvulus, the causative agent of onchocerciasis. The other filarial parasites of humans (Loa loa, Mansonella perstans, Mansonella streptocerca, and Mansonella ozzardi) cause minimal childhood morbidity. Of the 8 filarial parasites of humans, W bancrofti is, by far, the most important in terms of both morbidity and numbers of people infected.