All of the following are true regarding adult epiglottitis EXCEPT?
1) The incidence of adult epiglottitis has increased in recent years, whereas the incidence of pediatric epiglottitis has decreased.
2) Smokers have a higher incidence of adult epiglottitis.
3) The rapidity of symptoms' onset does not correlate with the likelihood of need for airway intervention.
4) Type b H. influenza is the most common bacterial pathogen to cause acute epiglottitis.
5) Adult epiglottitis is a cellulitis of the supraglottic structures of the airway including the epiglottis, vallecula, and the base of the tongue.