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Performance of suspected influenza case definition before and during the COVID-19 pandemic
Carlos Hernández Suarez
Efrén Murillo-Zamora
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1101/2020.06.01.20119446
https://www.medrxiv.org/content/10.1101/2020.06.01.20119446v1
Background The influenza-related burden remains high and the COVID-19 pandemic may difficult its accurate surveillance. This study aimed to evaluate the performance, before and during the COVID-19 pandemic, of the case definition of suspected influenza used in community surveillance in Mexico. Methods: A cross-sectional analysis of a cohort study took place and cases fulfilling the suspected case criteria (n = 20, 511), and with laboratory-conclusive evidence (quantitative real-time polymerase chain reaction) to confirm or discard influenza virus infection, were analyzed. Results A high sensitivity and modest specificity was documented, and this later decreased during the COVID-19 outbreak, as well as its diagnostic accuracy. However, no significant differences were observed in the Area Under the Receiver Operating Characteristics among the analyzed periods. Conclusions The evaluated case definition remains to be a cost-effective alternative to identify patients who may benefit from influenza-specific antiviral drugs, even during the COVID-19 global outbreak.
bioRxiv
02-06-2020
Preimpreso
Inglés
Público en general
VIRUS RESPIRATORIOS
Versión publicada
publishedVersion - Versión publicada
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