• Yae Jee Baek, Won Suk Chung, Ki Hyun Lee, Eun Hwa Lee, Se Ju Lee, Jinnam Kim, Jung Ho Kim, Jin Young Ahn, Su Jin Jeong, Jun Yong Choi, and Joon-Sup Yeom.
• Division of Infectious Disease, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
• Yonsei Med. J. 2022 Mar 1; 63 (3): 292-295.

AbstractResidential treatment centers (RTCs) are successful in isolating and closely monitoring adults confirmed with coronavirus disease 2019 (COVID-19), but there are concerns for children who need care. This study was conducted as a retrospective analysis of the surveillance of guardians who entered an RTC with infected pediatric patients to identify the secondary attack rate of COVID-19 to close contacts in a single RTC and to provide directions for developing guidelines for caregivers who co-isolate with infected children. When caregivers were admitted to this RTC, aside from negative confirmation before discharge, tests were additionally performed one or two times. There were 57 index children and adolescent patients who entered the RTC with their parents as caregivers. The secondary attack rate by pediatric patients to close contacts outside their households was 25% (95% confidence interval, 10.0 to 40.0) (8 out of 32 contacts). The transmissibility of SARS-CoV-2 in children was close to zero at 6 days after the confirmation tests. It is reasonable to test the close contacts of pediatric patients after 7 days of isolation to identify infections among caregivers.© Copyright: Yonsei University College of Medicine 2022.

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