tetano
Editor, Senior Moderator
Emerg Infect Dis
. 2020 Nov 30;27(2).
doi: 10.3201/eid2702.203189. Online ahead of print.
Childcare Exposure to Severe Acute Respiratory Syndrome Coronavirus 2 for 4-Year-Old Presymptomatic Child, South Korea
Yoonsun Yoon, Gwang-Jun Choi, Ji Yeong Kim, Kyung-Ran Kim, Hwanhee Park, Jae Kyung Chun, Yae-Jean Kim
Abstract
Data on transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from preschool-age children to children and adults are limited. We investigated SARS-CoV-2 exposure at a childcare center in South Korea. A 4-year-old child, probably infected by his grandmother, attended the center during the presymptomatic period (February 19-21, 2020). Fever developed on February 22, and he was given a diagnosis SARS-CoV-2 infection on February 27. At the center, 190 persons (154 children and 36 adults) were identified as contacts; 44 (23.2%) were defined as close contacts (37 children and 7 adults). All 190 persons were negative for SARS-CoV-2 on days 8-9 after the last exposure. Two close contacts (1 child and 1 adult) showed development of symptoms on the last day of quarantine. However, subsequent test resilts were negative. This investigation adds indirect evidence of low potential infectivity in a childcare setting with exposure to a presymptomatic child.
Keywords: COVID-19; SARS-CoV-2; South Korea; childcare; children; coronavirus; coronavirus disease; exposure; infection; presymptomatic; respiratory infections; severe acute respiratory syndrome coronavirus 2; transmission; viruses; zoonoses.
. 2020 Nov 30;27(2).
doi: 10.3201/eid2702.203189. Online ahead of print.
Childcare Exposure to Severe Acute Respiratory Syndrome Coronavirus 2 for 4-Year-Old Presymptomatic Child, South Korea
Yoonsun Yoon, Gwang-Jun Choi, Ji Yeong Kim, Kyung-Ran Kim, Hwanhee Park, Jae Kyung Chun, Yae-Jean Kim
- PMID: 33252327
- DOI: 10.3201/eid2702.203189
Abstract
Data on transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from preschool-age children to children and adults are limited. We investigated SARS-CoV-2 exposure at a childcare center in South Korea. A 4-year-old child, probably infected by his grandmother, attended the center during the presymptomatic period (February 19-21, 2020). Fever developed on February 22, and he was given a diagnosis SARS-CoV-2 infection on February 27. At the center, 190 persons (154 children and 36 adults) were identified as contacts; 44 (23.2%) were defined as close contacts (37 children and 7 adults). All 190 persons were negative for SARS-CoV-2 on days 8-9 after the last exposure. Two close contacts (1 child and 1 adult) showed development of symptoms on the last day of quarantine. However, subsequent test resilts were negative. This investigation adds indirect evidence of low potential infectivity in a childcare setting with exposure to a presymptomatic child.
Keywords: COVID-19; SARS-CoV-2; South Korea; childcare; children; coronavirus; coronavirus disease; exposure; infection; presymptomatic; respiratory infections; severe acute respiratory syndrome coronavirus 2; transmission; viruses; zoonoses.