Recent Increase in COVID-19 Cases Reported Among Adults Aged 18–22 Years — United States, May 31–September 5, 2020

Salvatore, Phillip P.; Sula, Erisa; Coyle, Jayme P.; PhD, .; Caruso, Elise; Smith, Amanda R.; Levine, Rebecca S.; Baack, Brittney N.; Mir, Roger; Lockhart, Edward R.; Tiwari, Tejpratap; Dee, Deborah L.; Boehmer, Tegan K.; Jackson, Brendan R; Bhattarai, Achuyt

doi:10.15585/mmwr.mm6939e4

Cited by 90 publications

(68 citation statements)

References 6 publications

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“…Several reports have described the challenges associated with SARS-CoV-2 transmission among college students who live and socialize together and have ongoing exposure on and off campus (1)(2)(3). This investigation identified 17 COVID-19 cases among students on a university's men's and women's soccer teams who lived, trained, and socialized together.…”

Section: Discussionmentioning

confidence: 99%

COVID-19 Outbreak Among a University’s Men’s and Women’s Soccer Teams — Chicago, Illinois, July–August 2020

Teran¹,

Ghinai²,

Gretsch³

et al. 2020

MMWR Morb. Mortal. Wkly. Rep.

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On October 27, 2020, this report was posted as an MMWR Early Release on the MMWR website (https://www.cdc.gov/mmwr). Data on transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), among college athletes are limited. In August 2020, the Chicago Department of Public Health (CDPH) was notified of a cluster of COVID-19 cases among a university's men's and women's soccer teams. CDPH initiated an investigation, interviewed members of both teams, and collated laboratory data to understand transmission of SARS-CoV-2 within the teams. Numerous social gatherings with limited mask use or social distancing preceded the outbreak. Transmission resulted in 17 laboratory-confirmed COVID-19 cases across both teams (n = 45), likely from a single source introduction of SARS-CoV-2 (based on whole genome sequencing) and subsequent transmission during multiple gatherings. Colleges and universities are at risk for COVID-19 outbreaks because of shared housing and social gatherings where recommended prevention guidance is not followed. Improved strategies to promote mask use and social distancing among college-aged adults need to be implemented, as well as periodic repeat testing to identify asymptomatic infections and prevent outbreaks among groups at increased risk for infection because of frequent exposure to close contacts in congregate settings on and off campus. Investigation and Results University A student athletes returned to campus* during June and were required to have two negative real-time reverse transcription-polymerase chain reaction (RT-PCR) SARS-CoV-2 tests before participating in any preseason training activities. Voluntary training sessions for both soccer teams began in July. In August, a member of the men's soccer team reported COVID-19-related symptoms to coaching staff members (Figure). The student reported attending several social gatherings with teammates in the preceding 14 days, including a birthday party and an unsanctioned soccer match between the men's and women's teams. Over the next 2 days, five other soccer players reported symptoms, and both teams were instructed to isolate or quarantine. † Specimens * University policy limited on-campus congregating and gatherings and required mask use in all settings (except personal residence), social distancing, and daily health screening. † The term "quarantine" is used to describe the 14-day period after a person who might have been exposed to COVID-19 stays away from others. The term "isolation" is used to describe the 10-day period when a person stays away from others after that person experiences symptom onset or receives a positive SARS-CoV-2 test result.

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Section: Discussionmentioning

confidence: 99%

COVID-19 Outbreak Among a University’s Men’s and Women’s Soccer Teams — Chicago, Illinois, July–August 2020

Teran¹,

Ghinai²,

Gretsch³

et al. 2020

MMWR Morb. Mortal. Wkly. Rep.

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“…to those at highest risk for severe illness or death. There is an urgent need to address transmission among young adult populations, especially given recent increases in COVID-19 incidence among young adults (3). These data also demonstrate the urgency of health care preparedness in hotspot counties,** which are likely to experience increases in COVID-19 cases and hospitalizations among older populations in the weeks after meeting hotspot criteria.…”

mentioning

confidence: 83%

Transmission Dynamics by Age Group in COVID-19 Hotspot Counties — United States, April–September 2020

Oster

Caruso

DeVies

et al. 2020

MMWR Morb. Mortal. Wkly. Rep.

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On October 9, 2020, this report was posted as an MMWR Early Release on the MMWR website (https://www.cdc.gov/mmwr). CDC works with other federal agencies to identify counties with increasing coronavirus disease 2019 (COVID-19) incidence (hotspots) and offers support to state, tribal, local, and territorial health departments to limit the spread of SARS-CoV-2, the virus that causes COVID-19 (1). Understanding whether increasing incidence in hotspot counties is predominantly occurring in specific age groups is important for identifying opportunities to prevent or reduce transmission. The percentage of positive SARS-CoV-2 reverse transcription-polymerase chain reaction (RT-PCR) test results (percent positivity) is an important indicator of community transmission.* CDC analyzed temporal trends in percent positivity by age group in COVID-19 hotspot counties before and after their identification as hotspots. Among 767 hotspot counties identified during June and July 2020, early increases in the percent positivity among persons aged ≤24 years were followed by several weeks of increasing percent positivity in persons aged ≥25 years. Addressing transmission among young adults is an urgent public health priority. Hotspot counties were identified by applying previously described standardized criteria to detect counties that had >100 cases during the past 7 days and experienced increases in cases in the preceding 3-7 days (1). Counties identified as hotspots during June 1-July 31, 2020, that had not met hotspot criteria in the previous 21 days were included. SARS-CoV-2 RT-PCR test results were obtained from data submitted by state health departments and laboratories. † Percent positivity was calculated by dividing the number of positive test results by the sum of positive and negative test results for each age group (0-17, 18-24, 25-44, 45-64, and ≥65 years) for the 45 days before and 45 days after hotspot detection (spanning April-September 2020) based on specimen collection or test order date. Data were presented using a 7-day moving average. Results were aggregated across all hotspot counties and stratified by age group. Analyses were conducted using R software (version 3.6.0; The R Foundation).

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“…During early August 2020, county-level incidence of coronavirus disease 2019 (COVID-19) generally decreased across the United States, compared with incidence earlier in the summer ( 1 ); however, among young adults aged 18–22 years, incidence increased ( 2 ). Increases in incidence among adults aged ≥60 years, who might be more susceptible to severe COVID-19–related illness, have followed increases in younger adults (aged 20–39 years) by an average of 8.7 days ( 3 ).…”

mentioning

confidence: 99%

Opening of Large Institutions of Higher Education and County-Level COVID-19 Incidence — United States, July 6–September 17, 2020

Leidner¹,

Barry²,

Bowen³

et al. 2021

MMWR Morb. Mortal. Wkly. Rep.

109

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Recent Increase in COVID-19 Cases Reported Among Adults Aged 18–22 Years — United States, May 31–September 5, 2020

Cited by 90 publications

References 6 publications

COVID-19 Outbreak Among a University’s Men’s and Women’s Soccer Teams — Chicago, Illinois, July–August 2020

COVID-19 Outbreak Among a University’s Men’s and Women’s Soccer Teams — Chicago, Illinois, July–August 2020

Transmission Dynamics by Age Group in COVID-19 Hotspot Counties — United States, April–September 2020

Opening of Large Institutions of Higher Education and County-Level COVID-19 Incidence — United States, July 6–September 17, 2020

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