Uncertainty In Seroprevalence Surveys
Conference
64th ISI World Statistics Congress
Format: IPS Paper
Keywords: infectious diseases
Session: IPS 79 - Statistical methods for managing emerging infectious diseases
Wednesday 19 July 2 p.m. - 3:40 p.m. (Canada/Eastern)
Abstract
The AbC study is a longitudinal serosurvey with 10,000 participants in Canada testing blood samples for previous infection of COVID-19, with the first samples taken in June 2020. Working out who has and has not been infected is not straightforward, as the measurements are noisy. We present a mixture model for values of the N protein in dried blood spots and derive prevalence and infection fatality ratios for various COVID waves in Canada.