Infectious disease reports
Evaluating the Ascertainment Bias of SARS-CoV-2 Using Spatial Backcalculation of Airport Screening Data in Japan
Par Liu S, Anzai A et Nishiura H.
Contenu en anglais
Résumé
Background
Despite global efforts to strengthen surveillance systems, ascertainment bias persisted. We evaluated the extent of this bias by comparing Japan's airport entry screening data with local surveillance data.
Methods
Entry screening data of non-Japanese passengers arriving from 25 countries were analyzed, and countries were categorized by income level: high-income countries (HICs), upper-middle-income countries (UMICs), and lower-middle-income countries (LMICs). A statistical model was developed to describe entry screening positivity using surveillance data of the country of origin.