Decline in influenza cases in Mexico after the implementation of public health measures for COVID-19

FILE PHOTO: A worker performs a quality check in the packaging facility of Chinese vaccine maker Sinovac Biotech, developing an experimental coronavirus disease (COVID-19) vaccine, during a government-organized media tour in Beijing, China, September 24, 2020. REUTERS/Thomas Peter/File Photo

Scientific report published on by Daniel Arellanos-SotoGerardo Padilla-RivasJavier Ramos-JimenezKame Galan-HuertaSonia Lozano-SepulvedaNatalia Martinez-AcuñaConsuelo Treviño-GarzaRoberto Montes-de-Oca-LunaManuel de-la-O-Cavazos & Ana Maria Rivas-Estilla 

Mexico took swift action and has strictly followed mitigation measures to prevent the spread of coronavirus disease, COVID-19. In this study we compared influenza activity indicators in our country after the implementation of public health measures for COVID-19.

We compared indicators of influenza activity in 2020 before and after public health measures were taken to reduce COVID-19 with the corresponding indicators from three preceding years and the immediate one, and the potential decrease in seasonal influenza cases/deaths.

Nationwide surveillance data revealed a drastic decline in influenza diagnosis in outpatient clinics and public hospitals, influenza positivity rates of clinical specimens, and confirmed severe cases during the following 10 weeks of 2020 as lockdown activities and control measures were established compared with the same period of 2019.

Our results suggest that the measures taken for COVID-19 were effective in reducing the spread of other viral respiratory diseases as influenza in our country.




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