Pertussis Differential Diagnoses
- Author: Joseph J Bocka, MD; Chief Editor: Russell W Steele, MD more...
Illnesses that mimic clinical pertussis include the following:
- Adenoviral respiratory infection - Children present with fever, sore throat, and conjunctivitis
- Mycoplasmal pneumonia - Patients with mycoplasmal infections have more pronounced systemic symptoms, fever and headache may occur, and rales may be appreciated on chest auscultation
- Chlamydial pneumonia - Young infants with chlamydial infections present with staccato cough, purulent conjunctival discharge, tachypnea, rales, and wheezing
- Respiratory syncytial virus infection - Patients present with predominantly lower respiratory tract signs (eg, wheezing, rales)
Other conditions to consider in the differential diagnosis of pertussis include the following:
- Common cold
- Cystic fibrosis
- Interstitial pneumonitis
- Croup (Laryngotracheobronchitis)
- Febrile Seizures
- Aspiration pneumonia
- Bacterial pneumonia
- Viral pneumonia
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