TY - CHAP M1 - Book, Section TI - Pertussis A1 - Mace, Sharon E. A2 - Schafermeyer, Robert A2 - Tenenbein, Milton A2 - Macias, Charles G. A2 - Sharieff, Ghazala Q. A2 - Yamamoto, Loren G. PY - 2014 T2 - Strange and Schafermeyer's Pediatric Emergency Medicine, 4e AB - Pertussis can occur in any age group, but is most severe in infants <6 months.The catarrhal stage is characterized by upper respiratory tract symptoms which are followed by a paroxysmal phase characterized by staccato cough.Lymphocytosis is suggestive of the disease, but is not always present.Treatment is supportive including oxygen for hypoxia and intravenous fluids for dehydration. Macrolides limit spread of the disease and are effective if given early.Indications for hospital admission include infants <6 months, hypoxia, and dehydration. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1105682146 ER -