RT Book, Section A1 Vidwan, Navjyot K. A1 Staat, Mary Allen A2 Rudolph, Colin D. A2 Rudolph, Abraham M. A2 Lister, George E. A2 First, Lewis R. A2 Gershon, Anne A. SR Print(0) ID 7025553 T1 Chapter 259. Chlamydia 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=7025553 RD 2024/04/23 AB The name chlamydiae is derived from the Greek word “chlamys” representing the cloak-like mantle worn by men in Ancient Greece.1 Upon initial discovery, chlamydiae were thought to be intracellular pathogens that cloaked the nucleus of an infected cell. Scientists have since discovered that chlamydiae are nonmotile, gram-negative, obligatory intracellular bacteria. These organisms cannot produce energy and thus survive by acting as a parasite using the energy mechanics of its infected host. The appearance of the cloak is now known to represent the host’s cytoplasmic vesicle with numerous individual chlamydia organisms inside.