RT Book, Section A1 Weller, Peter F. A2 Kasper, Dennis L. A2 Fauci, Anthony S. SR Print(0) ID 1141413634 T1 INTRODUCTION TO HELMINTHIC INFECTIONS T2 Harrison's Infectious Diseases, 3e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259835971 LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1141413634 RD 2024/04/19 AB The word helminth is derived from the Greek helmins (“parasitic worm”). Helminthic worms are highly prevalent and, depending on the species, may exist as free-living organisms or as parasites of plant or animal hosts. The parasitic helminths have co-evolved with specific mammalian and other host species. Accordingly, most helminthic infections are restricted to nonhuman hosts, and only rarely do these zoonotic helminths accidentally cause human infections.