Table 4 Search strategy of MEDLINE via PubMed

Architecture

= #1

(“Hospital Design and Construction”[Mesh]) OR construct* OR room* OR single patient OR architect* OR design* OR ward* OR privat* OR single bed

Size/Proximity

= #2

(“Risk Factors”[MeSH Terms]) OR Room size OR square footage OR distance OR proximity

Infection

= #3

(“Infection Control”[Mesh]) OR (“Cross Infection”[MeSH Terms])

Time limit

= #4

Limit to “1990/01/01”[PDAT] : “2015/12/31”[PDAT]

Language limit

= #5

Limit to (English[lang] OR French[lang] OR German[lang] OR Spanish[lang])