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Additional file 1 of Investigating sources of non-response bias in a population-based seroprevalence study of vaccine-preventable diseases in the Netherlands
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Number of Salmonella cases per year, per serotype and per region.
Number of Salmonella cases in the in the National Reference Center (NRC) database and the Sentinel Network of Laboratories (SNL) database.
Laboratory survey data.
Stool reimbursement data.
Capture-recapture analysis.
Number of Salmonella cases per 100 000 inhabitants reported by the National Reference Center (NRC) per region, Belgium, 2016–2020.
Number of Salmonella cases in the National Reference Center (NRC) database (solid line) and the Sentinel Network of Laboratories (SNL) database (dotted line), Belgium, 2016–2020.
Linking peripheral laboratory sites that sent isolates to the National Reference Center (NRC) with licensed medical laboratories that were invited to the survey to estimate the cov...
Coverage of the NRC surveillance system per licensed laboratory, per region, Belgium, 2019.