Adverse effects of contact precautions

There's a new systematic review on the adverse effects of contact precautions in the Journal of Hospital Infection. This paper's methods and findings are very similar to Dan Morgan's paper (with Dan Diekema, Kent Sepkowitz and Eli Perencevich as co-authors) from last year. There are a few papers that are not found in both reviews, but no newer papers are covered in the new review. The conclusions of the two papers are largely the same:  contact precautions are overall associated with adverse unintended consequences for patients in the observational studies that have been published.