A Bayesian model for repeated cross-sectional epidemic prevalence survey data
Fig 2
Daily SARS-CoV-2 swab positivity in England from the REACT-1 survey (upper) and corresponding daily sample sizes (lower).
Daily 95% confidence intervals (vertical lines) for prevalence were calculated using the Agresti-Coull method [14] in the binconf function of the Hmisc package in R [39].