Had COVID-19 spread in the community before the first confirmed case in Nagasaki, Japan?

This retrospective study evaluated stored nasopharyngeal swab samples from Japanese patients with influenza-like illness during the 2019/2020 season. We aimed to determine whether COVID-19 had spread in the community before the first confirmed case. The period of influenza season during 2019/2020 in...

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Detalles Bibliográficos
Autores principales: Kaku, Norihito, Ota, Kenji, Sasaki, Daisuke, Akamatsu, Norihiko, Uno, Naoki, Sakamoto, Kei, Kosai, Kosuke, Hasegawa, Hiroo, Izumikawa, Koichi, Mukae, Hiroshi, Yanagihara, Katsunori
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Institut Pasteur. Published by Elsevier Masson SAS. 2021
Materias:
COVID-19 Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7997852/
https://www.ncbi.nlm.nih.gov/pubmed/33781868
http://dx.doi.org/10.1016/j.micinf.2021.104812
Descripción
Sumario:This retrospective study evaluated stored nasopharyngeal swab samples from Japanese patients with influenza-like illness during the 2019/2020 season. We aimed to determine whether COVID-19 had spread in the community before the first confirmed case. The period of influenza season during 2019/2020 in Nagasaki was shorter than in previous influenza seasons. When the first COVID-19 case was reported in Nagasaki prefecture, the number of influenza cases were very low. No positive results for SARS-CoV-2 were detected in 182 samples that were obtained from adult outpatients. Our results revealed no large-scale spread of COVID-19 in the community before the first confirmed case.

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