RT Book, Section
A1 Asmar, Basim I.
A2 Rudolph, Colin D.
A2 Rudolph, Abraham M.
A2 Lister, George E.
A2 First, Lewis R.
A2 Gershon, Anne A.
SR Print(0)
ID 7026068
T1 Chapter 268. Moraxella Catarrhalis
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=7026068
RD 2024/04/20
AB Moraxella  catarrhalis  is  a  gram-negative  aerobic  diplococcus  that  belongs  to  the  Neisseraceae  family.  It  has  been  known  as  Micrococcus  catarrhalis,  Niesseria  catarrhalis,  and  Branhamella  catarrhalis.  It  commonly  inhabits  the  upper  respiratory  tract.  For  many  years,  it  was  considered  a  nonpathogenic  member  of  the  resident  flora  of  the  nasopharynx.  Over  the  past  25  to  30  years,  it  has  been  recognized  as  a  genuine  mucosal  pathogen  and  is  now  considered  an  important  cause  of  otitis  media  and  sinusitis  in  healthy  children  and  adults.  It  also  causes  lower  respiratory  tract  infections  and  exacerbation  of  bronchitis  in  adults  with  chronic  lung  disease.  Occasionally,  it  can  cause  a  variety  of  severe  infections,  including  septicemia,  pneumonia,  and  meningitis,  especially  in  the  immunocompromised  hosts.