Incubation period several days-3 weeks
3 stages:
Catarrhal phase: lasts 1-2 wks
Clinically indistinguishable from other URIs; dry cough starts near the end
Greatest infectivity phase.
Paroxysmal phase: lasts 2-4 weeks
Fever improves, cough worsens
Staccato cough + whoop (present in 1/3 kids), post-tussive emesis (often in adolescents, adults)
Infants can present as apnea
Patients often appear well between coughing episodes.
Petechiae, epistaxis, pneumothorax, and/or subconjunctival hemorrhage may occur due to high intrathoracic pressures during coughing.
Convalescent phase: lasts weeks-months; residual cough
Catarrhal phase: lasts 1-2 wks
Clinically indistinguishable from other URIs; dry cough starts near the end
Greatest infectivity phase.
Paroxysmal phase: lasts 2-4 weeks
Fever improves, cough worsens
Staccato cough + whoop (present in 1/3 kids), post-tussive emesis (often in adolescents, adults)
Infants can present as apnea
Patients often appear well between coughing episodes.
Petechiae, epistaxis, pneumothorax, and/or subconjunctival hemorrhage may occur due to high intrathoracic pressures during coughing.
Convalescent phase: lasts weeks-months; residual cough
Clinically indistinguishable from other URIs; dry cough starts near the end
Greatest infectivity phase.
Fever improves, cough worsens
Staccato cough + whoop (present in 1/3 kids), post-tussive emesis (often in adolescents, adults)
Infants can present as apnea
Patients often appear well between coughing episodes.
Petechiae, epistaxis, pneumothorax, and/or subconjunctival hemorrhage may occur due to high intrathoracic pressures during coughing.
Pneumonia superinfections
Rib fracture
Pneumothorax
Aspiration of gastric contents
CNS complications
Mucous plugs, obstructed airway
Secondary bacterial infection
Increased intrathoracic pressures
Rectal prolapse
Ruptured diaphragm
Hernia
Rectal prolapse
Ruptured diaphragm
Hernia
Pertussis
Airway obstruction
Diphtheria
Anaphylaxis
Influenza
Angioedema
Poliomyelitis
Aspirated foreign body