Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
Q: Abstract: Acute epiglottitis in the adult is uncommon. This case reports a young man with acute epiglottitis secondary to a Bacteroides melanogenicus supraglottic abscess. This pathogen has not been previously described as being causitive of epiglottitis.
A:
Adult