Life cycle of parasitic nematodes, including Ascaris lumbricoides Life cycle of parasitic nematodes, including Ascaris lumbricoides. (With permission from Barron S, ed. Medical Microbiology. 4th ed. Galveston, TX: University of Texas Medical Branch; 1996.) Source: Case 45, Case Files: Microbiology 3e Citation: Toy EC, Debord C, Wanger A, Mackenzie C, Pillai AS, Kettering JD. Case Files: Microbiology 3e; 2015 Available at: https://casefiles.mhmedical.com/DownloadImage.aspx?image=/data/gboscontainer/64/toy_cs45_f001.png&sec=162426295&BookID=0&ChapterSecID=105330804&imagename=&gboscontainerID=64 Accessed: March 10, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved