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. 2020 May 18;35(19):e182.
doi: 10.3346/jkms.2020.35.e182.

Social Distancing against COVID-19: Implication for the Control of Influenza

Ji Yun Noh  1   2 , Hye Seong  1 , Jin Gu Yoon  1 , Joon Young Song  1   2 , Hee Jin Cheong  1   3 , Woo Joo Kim  1   2
Affiliations

Social Distancing against COVID-19: Implication for the Control of Influenza

Ji Yun Noh et al. J Korean Med Sci. .

Abstract

Social distancing has been adopted as one of basic protective measures against coronavirus disease 2019 (COVID-19). During 2019-2020 season, influenza epidemic period was exceptionally short and epidemic peak was low in comparison with previous seasons in Korea. Influenza epidemic pattern was bimodal in 2016-2017 and 2018-2019 seasons, however, influenza viruses have rarely been circulating in spring, 2020 in Korea. Although multiple factors could affect the size of influenza epidemic, extensive application of nonpharmaceutical interventions including mask wearing and social distancing in response to COVID-19 seems to be a major factor of reduced influenza epidemic. Social distancing measures with high feasibility and high acceptability should be implemented even if severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines are developed in the future. Establishment of guideline for workplace social distancing is needed and it would contribute to reduce disease burden of influenza, especially in vaccine mismatch year.

Keywords: Coronavirus Disease 2019; Influenza; Social Distancing.

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Conflict of interest statement

The authors have no potential conflicts of interest to disclose.

Figures

Fig. 1
Fig. 1. Influenza-like illness rate during 2016-2020 seasons and number of cases of COVID-19 as of 18 Apr 2020, Korea. ILI rate of the week 53, 2016 (63.5) was not shown in the figure.
COVID-19 = coronavirus disease 2019, ILI = influenza-like illness.
Fig. 2
Fig. 2. Detection rate of influenza viruses by KINRESS during 2016-2020 season as of 18 Apr 2020. Data of the week 53, 2016 (46.8%) was not shown in the figure.
KINRESS = Korea Influenza and Respiratory Viruses Surveillance System.
See this image and copyright information in PMC

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