| No. | Search terms | Results |
| #1 | (doctor* or physician* or nurse* or clinician* or consultant* or healthcare assistant* or health care assistant* or health care professional* or healthcare professional* or team* or healthcare worker* or health care worker* or (health* near/2 personnel) or medical or nursing or staff):ti,ab | 93726 |
| #2 | (ward? or centre or centres or center or centers or department? or unit or units or hospital?):ti,ab | 89747 |
| #3 | long‐term care:ti,ab | 810 |
| #4 | (residential near/3 (care or healthcare or facilit*)):ti,ab | 395 |
| #5 | nursing home?:ti,ab | 1151 |
| #6 | [mh "health personnel"] | 7078 |
| #7 | [mh "health facilities"] | 13547 |
| #8 | {or #1‐#7} | 168722 |
| #9 | [mh handwashing] | 321 |
| #10 | (handwash* or (hand hygiene) or handrub* or hand rub*):ti,ab | 551 |
| #11 | (hand near/2 (clean* or decontaminat* or disinfect* or hygiene or hygienic* or saniti* or sterili* or wash*)):ti,ab | 457 |
| #12 | (hand* near/3 (alcohol* or propanol* or ethanol*)):ti,ab | 157 |
| #13 | (hand* near scrub*):ti,ab | 42 |
| #14 | [mh antisepsis] | 109 |
| #15 | [mh sterilization] | 490 |
| #16 | [mh disinfection] | 324 |
| #17 | [mh hand] | 2298 |
| #18 | (#14 or #15 or #16) and #17 | 18 |
| #19 | (hand near/2 (aseps* or aseptic* or antisep*)):ti,ab | 30 |
| #20 | #9 or #10 or #11 or #12 or #13 or #18 or #19 | 805 |
| #21 | #8 and #20 | 382 |