Stephen J. Schueler, M.D.

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Croup Transmission

Facts about croup:

  • Children with croup release the virus into the air on droplets of mucus when they sneeze or cough.
  • The virus enters the lungs of others when they inhale the droplets.
  • It usually takes about 3 to 5 days for symptoms of croup to develop.

Continue to Croup Anatomy

Last Updated: Dec 8, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Croup References
  1. Bjornson CL, Klassen TP, Williamson J, Brant R, Mitton C, Plint A, Bulloch B, Evered L, Johnson DW; Pediatric Emergency Research Canada Network. A randomized trial of a single dose of oral dexamethasone for mild croup. N Engl J Med. 2004 Sep 23;351(13):1306-13. [15385657]
  2. Custer JR. A randomized trial of a single dose of oral dexamethasone for mild croup. J Pediatr. 2005 Mar;146(3):434-5. [15756240]
  3. Griffin S, Ellis S, Fitzgerald-Barron A, Rose J, Egger M. Nebulised steroid in the treatment of croup: a systematic review of randomised controlled trials. Br J Gen Pract. 2000 Feb;50(451):135-41. [10750214]
  4. Johnson D. Croup. Clin Evid. 2004 Dec;(12):401-26. [15865647]
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