Database	Search terms
Web of science	(TS=( COVID-19 OR SARS-CoV-2)) OR TS= ( Severe acute respiratory syndrome coronavirus 2)) AND TS= ( 2019nCoV*)) OR TS= (HCoV-19)) OR TS= (Coronavirus Disease 2019 Virus)) OR TS= (2019 Novel Coronavirus*)) AND TS= (Vaccine* uptake)) OR TS= (vaccination acceptance)) OR TS= (vaccination willingness)) OR TS= (vaccin* inoculation)) OR TS= (vaccin* intention)) OR TS= (vaccine* hesitan*)) OR TS= (vaccine* refusal);
Medline & Embase	(vaccination acceptance OR willingness to vaccine$ OR intention to vaccine$ OR vaccine hesitancy$ OR vaccine$ refusal OR vaccine$ innoculat$ AND COVID-19 OR SARS-CoV-2 OR Severe acute respiratory syndrome coronavirus 2 OR 2019nCoV OR HCoV-19 OR Coronavirus Disease 2019 Virus Vaccine$ OR 2019 Novel Coronavirus vaccine$);
CINAHL and PsycINFO	(Vaccine* uptake OR vaccination acceptance OR willingness to vaccin* OR intention to vaccin* OR vaccine hesitancy* OR vaccine* refusal OR vaccine* inoculate* AND COVID-19 OR SARS-CoV-2 OR Severe acute respiratory syndrome coronavirus 2 OR 2019nCoV OR HCoV-19 OR Coronavirus Disease 2019 Virus Vaccine* OR 2019 Novel Coronavirus vaccine* AND vaccine uptake OR vaccination acceptance OR vaccination willingness OR inoculation OR vaccine intention OR vaccine hesitation OR vaccine refusal);
Scopus	(COVID-19 OR SARS-CoV-2 OR Severe acute respiratory syndrome coronavirus 2 OR 2019nCoV OR HCoV-19 OR Coronavirus Disease 2019 Virus Vaccine* OR 2019 Novel Coronavirus vaccine* AND Vaccine* uptake OR vaccination acceptance OR vaccination willingness OR vaccine* inoculation OR vaccine* intention OR vaccine* hesitation OR vaccine* refusal).
PubMed	COVID-19 OR SARS-CoV-2 OR Severe acute respiratory syndrome coronavirus 2 OR 2019nCoV OR HCoV-19 OR Coronavirus Disease 2019 Virus Vaccine* OR 2019 Novel Coronavirus vaccine* AND Vaccine* uptake OR vaccination acceptance OR vaccination willingness OR vaccine* innoculation OR vaccine* intention OR vaccine* hesitation OR vaccine* refusal