Table 1.

Search strategy for MEDLINE

Concepts	Search terms in each concepts will be modified as needed for use in other databases
Concept #1	COVID-19
	“COVID-19 19 pandemic”[All Fields] OR “COVID-19”[All Fields] OR “COVID-19”[All Fields] OR “COVID-2019”[All Fields] OR "2019-nCoV”[All Fields] OR "2019nCoV”[All Fields] OR “coronavirus infections”[All Fields] OR “coronavirus infections”[MeSH Terms] OR “coronavirus”[All Fields] OR “coronavirus”[All Fields] OR “coronavirus”[MeSH Terms] OR “coronavirus”[MeSH Terms] OR “Betacoronavirus”[MAJR] “SARS coronavirus2”[All Fields] “sars cov”[All Fields] OR “sars virus”[All Fields] OR “sars virus”[MeSH Terms] OR “SARS”[All Fields] OR “SARS2”[All Fields] OR “SARS-2”[All Fields] OR “SARScoronavirus 2”[All Fields] OR “SARScoronavirus2”[All Fields] OR “SARS-coronavirus-2”[All Fields] OR"SARS-CoV-2”[All Fields] OR “SARSCov2019*“[All Fields] OR “SARS-Cov2019*“[All Fields] OR “SARS-Cov-2019*“[All Fields] OR “severe acute respiratory syndrome coronavirus 2”[All Fields] OR “severe acute respiratory syndrome coronavirus 2”(Supplementary Concept))OR “Wuhan coronavirus”[All Fields] OR “Wuhan”[All Fields] AND (“coronavirus”[MeSH Terms] OR “coronavirus”[All Fields] OR “COVID-19”(nm)
Concept #2	Non-pharmaceutical interventions
	“social distancing”[TIAB] OR “cohorting”[All Fields] OR “community containment”[All Fields] OR “isolation strategy”[All Fields] OR “isolation”[All Fields] OR “patient isolation”[All Fields] OR “patient isolation”[MeSH Terms] OR “patient isolators”[All Fields] OR “patient isolators”[MeSH Terms] OR “physical contact”[All Fields] OR “physical distancing”[All Fields] OR “quarantine”[All Fields] OR “quarantines”[All Fields] OR “quarantine”[MeSH Terms] OR “social distance”[All Fields] OR “quarantines”[All Fields] OR “quarantined”[All Fields] OR “quarantining”[All Fields] OR “social distance”[MeSH Terms] OR “Social distancing”[All Fields] OR “Banning”[All Fields] OR “distancing”[All Fields]
Concept #3	Reduce transmission
	“reduce”[All Fields] OR “reduced”[All Fields] OR “reduces”[All Fields] OR “transmission”[MeSH Subheading] OR “transmission”[All Fields] OR “transmissions”[All Fields] OR “prevention and control”[Subheading] OR prevention[Text Word] OR “reduce infection”[All Fields] OR infect”[All Fields] OR “infectability”[All Fields] OR “infectable”[All Fields] OR “infectant”[All Fields] OR “infectants”[All Fields] OR “infected”[All Fields] OR “infecteds”[All Fields] OR “infectibility”[All Fields] OR “infectible”[All Fields] OR “infecting”[All Fields] OR “infection s”[All Fields] OR “infections”[MeSH Terms] OR “infections”[All Fields] OR “infection”[All Fields] OR “infective”[All Fields] OR “infectiveness”[All Fields] OR “infectives”[All Fields] OR “infectivities”[All Fields] OR “infects”[All Fields] OR “pathogenicity”[MeSH Subheading] OR “pathogenicity”[All Fields] OR “infectivity”[All Fields] OR “Coronavirus Infections/prevention and control”[MAJR] OR “Pandemics/prevention and control”[MAJR]

We combined these concepts (using AND), so all concepts are in the same references.