9d ago
Defining severe acute respiratory infection hospitalisations for national register-based surveillance in Finland, 2022-2025
Ruesta-Maijala · A. · Lehtonen · T. · Sane · J. · Leino · T.
Abstract
Background Severe acute respiratory infections (SARI) strain healthcare systems. Sentinel surveillance remains central to SARI monitoring, but routinely collected hospital discharge data offer a scalable, population-wide complement. In Finland, national registers now enable register-based surveillance, yet SARI case definitions remain unevaluated. Aim To evaluate whether routinely collected electronic health records can support register-based SARI surveillance and establish a national case defin
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