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10.3346/jkms.2020.35.e288

http://scihub22266oqcxt.onion/10.3346/jkms.2020.35.e288
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suck abstract from ncbi


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pmid32776726      J+Korean+Med+Sci 2020 ; 35 (31): e288
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  • Epidemiological Characteristics of COVID-19 Outbreak at Fitness Centers in Cheonan, Korea #MMPMID32776726
  • Bae S; Kim H; Jung TY; Lim JA; Jo DH; Kang GS; Jeong SH; Choi DK; Kim HJ; Cheon YH; Chun MK; Kim M; Choi S; Chun C; Shin SH; Kim HK; Park YJ; Park O; Kwon HJ
  • J Korean Med Sci 2020[Aug]; 35 (31): e288 PMID32776726show ga
  • BACKGROUND: In February 2020, a coronavirus disease 2019 (COVID-19) outbreak was reported in fitness centers in Cheonan, Korea. METHODS: From February 24 to March 13, an epidemiological investigation was conducted on the fitness center outbreak. All those who were screened were tested for severe acute respiratory syndrome coronavirus-2 (SARS CoV-2) using real-time reverse transcriptase polymerase chain reaction. Contacts were traced and self-isolated for 14 days. We determined the epidemiological characteristics of confirmed cases of SARS-CoV-2 infection, and estimated the time-dependent reproduction number to assess the transmission dynamics of the infection. RESULTS: A total of 116 cases were confirmed, and 1,687 contacts were traced. The source cases were 8 Zumba instructors who led aerobics classes in 10 fitness centers, and had the largest average number of contacts. A total of 57 Zumba class participants, 37 of their family members, and 14 other contacts were confirmed as cases. The attack rate was 7.3%. The contacts at Zumba classes and homes had a higher attack rate than other contacts. The mean serial interval (+/- standard deviation) were estimated to be 5.2 (+/- 3.8) days. The time-dependent reproduction number was estimated to be 6.1 at the beginning of the outbreak, but it dropped to less than 1, 2 days after the epidemiological investigation was launched. CONCLUSION: The results suggest that the COVID-19 outbreak was effectively contained with rigorous contact tracing, isolating, and testing in combination with social distancing without a lock-down.
  • |Adult[MESH]
  • |Betacoronavirus/genetics/isolation & purification[MESH]
  • |COVID-19[MESH]
  • |Contact Tracing[MESH]
  • |Coronavirus Infections/diagnosis/*epidemiology/virology[MESH]
  • |Disease Outbreaks[MESH]
  • |Female[MESH]
  • |Fitness Centers[MESH]
  • |Humans[MESH]
  • |Male[MESH]
  • |Middle Aged[MESH]
  • |Pandemics[MESH]
  • |Pneumonia, Viral/diagnosis/*epidemiology/virology[MESH]
  • |Quarantine[MESH]
  • |RNA, Viral/metabolism[MESH]
  • |Real-Time Polymerase Chain Reaction[MESH]
  • |Republic of Korea/epidemiology[MESH]


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