An interesting story has been published by JAMA about this:
“The move to single-patient rooms at the McGill University Health Centre’s (MUHC) Glen site in 2015 resulted in significantly reduced rates of hospital-acquired infections, suggests a study published today in the highly respected journal JAMA: Internal Medicine published by the American Medical Association. A team at the Research Institute of the McGill University Health Centre (RI-MUHC) found that rates of both colonization and blood infections due to vancomycin-resistant Enterococcus(VRE), a common multi-drug resistant organism, fell immediately and dramatically after the relocation, suggesting an association between single-patient rooms and reduced risk of hospital-acquired infections. Their findings have important implications for infection control strategies in the context of the construction or renovation of hospitals.”