Epidemic surveillance of Covid-19: considering uncertainty and under-ascertainment

Translated title of the contribution: Vigilância epidemiológica do COVID-19: considerações sobre incerteza e sub-deteção

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Epidemic surveillance is a fundamental part of public health practice. Addressing under-ascertainment of cases is relevant in most surveillance systems, especially in pandemics of new diseases with a large spectrum of clinical presentations as it may influence timings of policy implementation and public risk perception. From this perspective, this article presents and discusses early evidence on under-ascertainment of COVID-19 and its motifs, options for surveillance, and reflections around their importance to tailor public health measures. In the case of COVID-19, systematically addressing and estimating under-ascertainment of cases is essential to tailor timely public health measures, and communicating these findings is of the utmost importance for policy making and public perception.

Original languageMultiple languages
Pages (from-to)23-29
JournalPortuguese Journal of Public Health
Issue number1
Early online date2020
Publication statusPublished - 2020

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