id author title date pages extension mime words sentences flesch summary cache txt cord-340317-gwqy6u9x Dora, Amy V Using Serologic Testing to Assess the Effectiveness of Outbreak Control Efforts, Serial PCR Testing, and Cohorting of Positive SARS-CoV-2 Patients in a Skilled Nursing Facility 2020-08-28 .txt text/plain 1598 109 55 title: Using Serologic Testing to Assess the Effectiveness of Outbreak Control Efforts, Serial PCR Testing, and Cohorting of Positive SARS-CoV-2 Patients in a Skilled Nursing Facility Despite numerous outbreaks, the performance of serologic testing for SARS-CoV-2 in residents of skilled nursing facilities (SNF) is not well described; its utility in epidemiologic sero-surveillance studies and outbreak reporting is under evaluation. As our objective was to identify potentially missed cases of COVID-19 during serial surveillance testing, samples from residents with historically negative SARS-CoV-2 RT-PCR tests with DiaSorin IgG-positive results were re-tested on a second serologic testing platform (Abbott SARS-CoV-2 IgG Immunoassay) for IgG antibody specific to SARS-CoV-2 nucleocapsid. In a cohort of 150 nursing home residents tested for SARS-CoV-2 infection by RT-PCR, including 26 previously diagnosed with COVID-19, the sensitivity of the DiaSorin assay was 92% (24/26) and the specificity was 98% (122/124). ./cache/cord-340317-gwqy6u9x.txt ./txt/cord-340317-gwqy6u9x.txt