True about rhinoscleroma are all, EXCEPT:

Rhinoscleroma is a rare, slowly progressing granulomatous disease of the upper respiratory tract caused by Klebsiella rhinoscleromatis. Nasal disease presents with three typical stages: (1) catarrhal (2) proliferative (3) cicatrical. Rhinoscleroma may be found in all age groups, but typically young adults 20-30 years old are most frequently affected. Airborne transmission combined with poor hygiene, crowded living conditions, and poor nutrition contributes to its spread.