The impact of the COVID-19 preventive measures on influenza transmission: molecular and epidemiological evidence
Autor: | Leon King Tran, Dai-Wei Huang, Nien-Kung Li, Lucy M. Li, Julia A. Palacios, Hsiao-Han Chang |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Microbiology (medical)
SARS-CoV-2 viruses Influenza A Virus H3N2 Subtype virus diseases COVID-19 Infectious and parasitic diseases RC109-216 General Medicine genetic diversity Article respiratory tract diseases Infectious Diseases Influenza A Virus H1N1 Subtype Influenza Human Humans case epidemiology Seasons influenza effective population size |
Zdroj: | International Journal of Infectious Diseases International Journal of Infectious Diseases, Vol 116, Iss, Pp 11-13 (2022) |
ISSN: | 1878-3511 1201-9712 |
Popis: | Objective We quantify the impact of COVID-19-related control measures on the spread of human influenza virus H1N1 and H3N2. Methods We analyzed case numbers to estimate the length of the 2019-2020 influenza season and compare its length to the median of the previous nine seasons. In addition, we used influenza molecular data to compare within-region and between-region genetic diversity and effective population size from 2019 to 2020. Finally, we analyzed personal behavior data, and policy stringency data for each region. Results The 2019-2020 influenza season was shorter than the median of the previous nine seasons in all regions. For H1N1 and H3N2, there was an increase in between-region genetic diversity in almost all pairs of regions between 2019 and 2020. For 10 of 11 regions for H1N1 and 9 of 11 regions for H3N2, there was a decrease in within-region genetic diversity. For 10 of 13 regions for H1N1 and 3 of 7 regions for H3N2, there was a decrease in effective population size. Conclusions We found consistent evidence of decrease in influenza incidence after the introduction of preventive measures due to COVID-19 emergence. |
Databáze: | OpenAIRE |
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