Fig. 4

Relative abundance of 16S RNA bacteria genes recovered from 4.5 m³ of textile storage room air by an OMNI 3000 hi-volume impinger, during early summer (June) and early winter (November) sampling campaigns, 2013. (Top panels: originating room) Relative abundance pattern observed in soiled textile holding room centralized on HEPA-filtered patient floor: a 3 months following patient occupation and b 8 months following patient occupation. (Bottom panels: terminal room) Soiled textile receiving room isolated in basement: c 3 months following support staff occupation and d 8 months after operational. No DNA could be recovered and amplified from composite aerosol sampling prior to patient occupation (Feb 2013)