RT Book, Section
A1 Schutze, Gordon E.
A2 Rudolph, Colin D.
A2 Rudolph, Abraham M.
A2 Lister, George E.
A2 First, Lewis R.
A2 Gershon, Anne A.
SR Print(0)
ID 7028617
T1 Chapter 294. Rickettsial Infections
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=7028617
RD 2024/04/18
AB Rickettsial  infections  are  caused  by  pleomorphic  gram-negative  organisms  that  contain  both  DNA  and  RNA.  They  are  obligate  intracellular  parasites,  have  typical  bacterial  cell  walls  and  cytoplasmic  membranes,  and  divide  by  binary  fission.  The  taxonomy  of  rickettsiae  continues  to  undergo  an  extensive  reorganization.  The  order  Rickettsiales  has  changed  and  now  includes  only  two  families,  the  Anaplasmataceae  and  the  Rickettsiaceae.1,2  Three  groups  of  disease  are  still  commonly  classified  as  rickettsial  diseases:  (1)  the  spotted  fever  and  the  typhus  group  from  the  family  Rickettsiaceae,  (2)  ehrlichioses  and  anaplasmoses  from  the  family  Anaplasmataceae,  and  (3)  scrub  typhus  (Orientia  tsutsugamushi).3