RT Book, Section A1 Abdel-Haq, Nahed A1 Kumar, Ashir A2 Rudolph, Colin D. A2 Rudolph, Abraham M. A2 Lister, George E. A2 First, Lewis R. A2 Gershon, Anne A. SR Print(0) ID 7027298 T1 Chapter 276. Nocardiosis 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=7027298 RD 2024/04/19 AB Nocardiosis is an uncommon gram-positive infection with protean clinical manifestations. It is caused by a soilborne aerobic actinomycete of the family Nocardiaceae and is acquired mostly through the respiratory tract.1 Members of the family Nocardiaceae reproduce by fragmenting into bacillary and coccoid elements but are distinguished by filamentous growth with true branching.2 These organisms appear as gram-positive branching filaments and are weakly acid-fast.2Nocardia species grow readily on simple media as pigmented colonies due to rudimentary aerial mycelia.