id author title date pages extension mime words sentences flesch summary cache txt cord-255446-wddj6hrv McDade, T. W. High seroprevalence for SARS-CoV-2 among household members of essential workers detected using a dried blood spot assay 2020-06-02 .txt text/plain 3121 234 59 To address this problem we developed a serological test for SARS-CoV-2 IgG antibodies that requires only a single drop of finger stick capillary whole blood, collected in the home and dried on filter paper (dried blood spot, DBS). Serological testing for SARS-CoV-2 IgG antibodies in DBS samples can facilitate seroprevalence assessment in community settings to address epidemiological questions, monitor duration of antibody responses, and assess if antibodies against the spike protein correlate with protection from reinfection. 7 We adapted this ELISA to measure IgG antibodies to the receptor binding domain (RBD) of the SARS-CoV-2 spike protein in DBS samples. . https://doi.org/10.1101/2020.06.01.20119602 doi: medRxiv preprint Participants who previously tested positive for SARS-CoV-2 virus were recruited from the community through direct contact. Seroprevalence in 202 samples collected from the community, which includes health care workers and first responders, none of which were confirmed SARS-CoV-2 viral positive. ./cache/cord-255446-wddj6hrv.txt ./txt/cord-255446-wddj6hrv.txt