Table 1 Resources and Search Terms to identify Seroprevalence Studies in the U.S.

Clinicaltrials.gov

Serology,

Coronavirus,

sars-cov-2

Antibodies,

COVID-19

Seroprevalence

SARS-CoV-2

JAMA Network

Serology,

Coronavirus,

sars-cov-2

Antibodies,

COVID-19

Seroprevalence

SARS-CoV-2

LITCOVID

Filter by Country to focus on United States, search for Serology and COVID-19

MedRxiv

Serology,

Coronavirus,

sars-cov-2

Antibodies,

COVID-19

Seroprevalence

SARS-CoV-2

Pubcrawler

Pubcrawler is a free alerting service that scans daily updates to the NCBI Medline (PubMed) and GenBank databases. We use the same search parameters as for PubMed (see below)

1

(((Immunoglobulins[Mesh] OR antibody OR anti-body OR antibodies OR anti-bodies OR Serologic Tests[Mesh] OR Immunoassay[Mesh] OR Serology[Mesh] OR serosurvey OR sero-survey)))

2

((coronavirus OR corona-virus OR covid 19 OR covid-19 OR covid19 OR covid 2019 OR covid-2019 OR covid 2019 OR severe acute respiratory syndrome coronavirus 2 OR SARS-CoV-2 OR sars cov-2 OR sars-cov 2 OR sar cov 2 OR wuhan virus))**

3

(2019/12[Date - Publication]: 3000[Date - Publication])

4

1 AND 2 AND 3 AND 4

Serotracker

Filter by Location–United States of America and filter out News and Media studies