| HAIs | healthcare-associated infections |
| JBI | Joanna Briggs Institute |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| PICOS | Population, Intervention, Comparison, Outcomes, and Study Design |
| RCTs | randomized controlled trials |
| PROSPERO | International Prospective Register of Systematic Reviews |
| PPE | personal protective equipment |
| GRADE | Grading of Recommendations, Assessment, Development, and Evaluation |
| SoF | Summary of Findings |
| SPSS | Statistical Package for the Social Sciences |
| FCT | Fundação para a Ciência e a Tecnologia |
| CHRC | Comprehensive Health Research Centre |
| ciTechCare | Centre for Innovative Care and Health Technology |