“Whooping cough”.  The “whoop” is caused on inspiration between coughs.
Most common in kids < 1yo, because they haven’t completed the whole vaccine series, AND adults, who have waning immunity.
One of the only vaccine preventable diseases that has increased in prevalence recently
Up to 20% of adults with cough >2 weeks have serologic evidence of<unk> 
Bordetella<unk> , a gram-negative coccobacillus

Transmitted by aerosolized droplets, extremely contagious
Infects ciliated respiratory cells (rarely goes hematogenous), creates toxins damaging respiratory epithelium.
Pertussis
Airway obstruction
Diphtheria
Anaphylaxis
Influenza
Angioedema
Poliomyelitis
Aspirated foreign body