it is still unclear what level of specific pathogen RNA / DNA constitutes a true clinical risk .
In this case , the absence of detectable airborne adenovirus DNA <*> removed the requirement for staff to wear surgical masks and face visors
Although highly sensitive , in - house PCR assays have been developed to detect airborne pathogen RNA / DNA , it is still unclear what level of specific pathogen RNA / DNA constitutes a true clinical risk .
In this case , the absence of detectable airborne adenovirus DNA using a conventional diagnostic assay removed the requirement for staff to wear surgical masks and face visors when they entered the child 's room .