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Volume 26, Number 8—August 2020
Research Letter

Decreased Influenza Incidence under COVID-19 Control Measures, Singapore

Roy Jiunn Jye Soo, Calvin J. Chiew, Stefan Ma, Rachael Pung, and Vernon LeeComments to Author 
Author affiliations: Ministry of Health, Singapore (R.J.J. Soo, C.J. Chiew, S. Ma, R. Pung, V. Lee); Saw Swee Hock School of Public Health, Singapore (V. Lee)

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Figure

Indicators of influenza activity during the 2019–20 season (red line) compared with average of the preceding 3 years (green line), Singapore. A) Average number of visits per day to government primary care clinics for influenza-like illnesses, 2016–2020. B) Samples from patients with influenza-like illness tested per week, 2016–2020. C) Influenza positivity, 2016–2020. D) Estimated daily numbers of influenza cases, 2016–2020.

Figure. Indicators of influenza activity during the 2019–20 season (red line) compared with average of the preceding 3 years (green line), Singapore. A) Average number of visits per day to government primary care clinics for influenza-like illnesses, 2016–2020. B) Samples from patients with influenza-like illness tested per week, 2016–2020. C) Influenza positivity, 2016–2020. D) Estimated daily numbers of influenza cases, 2016–2020.

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Page created: April 27, 2020
Page updated: July 19, 2020
Page reviewed: July 19, 2020
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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