RT Book, Section A1 García, HéCtor H. A1 Gilman, Robert H. A2 Rudolph, Colin D. A2 Rudolph, Abraham M. A2 Lister, George E. A2 First, Lewis R. A2 Gershon, Anne A. SR Print(0) ID 7031382 T1 Chapter 339. Hymenolepiasis 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=7031382 RD 2024/04/24 AB Infection with Hymenolepis nana, the dwarf tapeworm, is the most common tapeworm infection in the world. H nana is found in 0.4% of fecal specimens submitted to state laboratories in the United States. Infections occur most frequently in warm countries. It is especially prevalent in the southern part of the former Soviet Union, the Mediterranean, the Indian subcontinent, and South America. Children are more commonly infected than adults, and high prevalence rates have been reported in institutionalized children because of fecal-oral transmission.1