mw018
This prospective clinical study was conducted between August 2016 and March 2017. Sterile bilateral nasal swabs were collected from a total of 72 individuals, including patients with GPA (n = 28) and RA (n = 21) as well as healthy controls (n = 23). None of the swabbed individuals were currently on antibiotic therapy, and all had been off antibiotic therapy for at least 3 weeks