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Editorial
. 2021 Jul 1;73(1):e141-e143.
doi: 10.1093/cid/ciaa834.

Social Distancing Measures: Evidence of Interruption of Seasonal Influenza Activity and Early Lessons of the SARS-CoV-2 Pandemic

Andrew D Wiese  1 , Jordan Everson  1 , Carlos G Grijalva  1
Affiliations
Editorial

Social Distancing Measures: Evidence of Interruption of Seasonal Influenza Activity and Early Lessons of the SARS-CoV-2 Pandemic

Andrew D Wiese et al. Clin Infect Dis. .
No abstract available

Keywords: SARS-CoV-2; influenza; influenza-like-illness; social distancing; surveillance.

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Figures

Figure 1.
Figure 1.
A, National current weekly percentage of influenza-positive respiratory specimens and ILI- and CLI-related outpatient encounters in the United States (2015–2020). B, Regional current and historical weekly percentage of influenza-positive respiratory specimens and ILI- and CLI-related outpatient encounters in the United States (2015–2020). Notes: Influenza positive (blue solid lines), ILI (green solid lines), and CLI (black dashed lines) (2019–2020): the value for each week during the 2019–2020 viral respiratory season. Influenza-positive (red solid lines), ILI (orange solid lines) (2015–2019): the median value for each week in the prior 4 influenza seasons (2015–2019). Surveillance data sources: Laboratory-confirmed influenza compiled from NREVSS and WHO Collaborating Laboratory surveillance data, ILI compiled from ILInet, and CLI compiled from the National Syndromic Surveillance Program. Regions: Defined based on the US Health and Human Services regions: 1-Boston—Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; 2-New York—New Jersey, New York, Puerto Rico, Virgin Islands; 3-Philadelphia—Delaware, Washinton DC, Maryland, Pennsylvania, Virginia, West Virginia; 4-Atlanta—Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee; 5-Chicago—Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin; 6-Dallas—Arkansas, Louisiana, New Mexico, Oklahoma, Texas; 7-Kansas City—Iowa, Kansas, Missouri, Nebraska; 8-Denver—Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming; 9-San Francisco—Arizona, California, Hawaii, Nevada, American Samoa, Commonwealth of the Northern Mariana Islands, Federated States of Micronesia, Guam, Marshall Islands, and Republic of Palau; 10-Seattle—Alaska, Idaho, Oregon, Washington. 1Social distancing enactment: The period before the enactment of social distancing at the regional level was measured as the time prior to and including the week of the first statewide school closure or mass gathering restriction for each region. Abbreviations: CLI, Covid-like illness; Covid, coronavirus disease; ILI, influenza-like illness; WHO, World Health Organization.
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References

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