Journal article

A Dual-Antigen Enzyme-Linked Immunosorbent Assay Allows the Assessment of Severe Acute Respiratory Syndrome Coronavirus 2 Antibody Seroprevalence in a Low-Transmission Setting

Sarah M Hicks, Kai Pohl, Teresa Neeman, Hayley A McNamara, Kate M Parsons, Jin-shu He, Sidra A Ali, Samina Nazir, Louise C Rowntree, Thi HO Nguyen, Katherine Kedzierska, Denise L Doolan, Carola G Vinuesa, Matthew C Cook, Nicholas Coatsworth, Paul S Myles, Florian Kurth, Leif E Sander, Graham J Mann, Russell L Gruen Show all

Journal of Infectious Diseases | OXFORD UNIV PRESS INC | Published : 2021

Abstract

Estimates of seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies have been hampered by inadequate assay sensitivity and specificity. Using an enzyme-linked immunosorbent assay-based approach that combines data about immunoglobulin G responses to both the nucleocapsid and spike receptor binding domain antigens, we show that excellent sensitivity and specificity can be achieved. We used this assay to assess the frequency of virus-specific antibodies in a cohort of elective surgery patients in Australia and estimated seroprevalence in Australia to be 0.28% (95% Confidence Interval, 0-1.15%). These data confirm the low level of transmission of SARS-CoV-2 in ..

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