Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020

The overall coronavirus disease secondary attack rate (SAR) in family members was 19.0% in 10 prefectures of Japan during February 22–May 31, 2020. The SAR was lower for primary cases diagnosed early, within 2 days after symptom onset. The SAR of asymptomatic primary cases was 11.8%.

Bibliographic Details
Main Authors: Reiko Miyahara, Naho Tsuchiya, Ikkoh Yasuda, Yura K. Ko, Yuki Furuse, Eiichiro Sando, Shohei Nagata, Tadatsugu Imamura, Mayuko Saito, Konosuke Morimoto, Takeaki Imamura, Yugo Shobugawa, Hiroshi Nishiura, Motoi Suzuki, Hitoshi Oshitani
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2021-03-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/27/3/20-3882_article
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author Reiko Miyahara
Naho Tsuchiya
Ikkoh Yasuda
Yura K. Ko
Yuki Furuse
Eiichiro Sando
Shohei Nagata
Tadatsugu Imamura
Mayuko Saito
Konosuke Morimoto
Takeaki Imamura
Yugo Shobugawa
Hiroshi Nishiura
Motoi Suzuki
Hitoshi Oshitani
author_facet Reiko Miyahara
Naho Tsuchiya
Ikkoh Yasuda
Yura K. Ko
Yuki Furuse
Eiichiro Sando
Shohei Nagata
Tadatsugu Imamura
Mayuko Saito
Konosuke Morimoto
Takeaki Imamura
Yugo Shobugawa
Hiroshi Nishiura
Motoi Suzuki
Hitoshi Oshitani
author_sort Reiko Miyahara
collection DOAJ
description The overall coronavirus disease secondary attack rate (SAR) in family members was 19.0% in 10 prefectures of Japan during February 22–May 31, 2020. The SAR was lower for primary cases diagnosed early, within 2 days after symptom onset. The SAR of asymptomatic primary cases was 11.8%.
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spelling doaj.art-43b3a7303c9d482a88925e8cddfa9a6b2022-12-21T21:04:55ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592021-03-0127391591810.3201/eid2703.203882Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020Reiko MiyaharaNaho TsuchiyaIkkoh YasudaYura K. KoYuki FuruseEiichiro SandoShohei NagataTadatsugu ImamuraMayuko SaitoKonosuke MorimotoTakeaki ImamuraYugo ShobugawaHiroshi NishiuraMotoi SuzukiHitoshi OshitaniThe overall coronavirus disease secondary attack rate (SAR) in family members was 19.0% in 10 prefectures of Japan during February 22–May 31, 2020. The SAR was lower for primary cases diagnosed early, within 2 days after symptom onset. The SAR of asymptomatic primary cases was 11.8%.https://wwwnc.cdc.gov/eid/article/27/3/20-3882_articlecoronavirus diseaseCOVID-19respiratory infectionsfamilial clustersprefecturesJapan
spellingShingle Reiko Miyahara
Naho Tsuchiya
Ikkoh Yasuda
Yura K. Ko
Yuki Furuse
Eiichiro Sando
Shohei Nagata
Tadatsugu Imamura
Mayuko Saito
Konosuke Morimoto
Takeaki Imamura
Yugo Shobugawa
Hiroshi Nishiura
Motoi Suzuki
Hitoshi Oshitani
Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
Emerging Infectious Diseases
coronavirus disease
COVID-19
respiratory infections
familial clusters
prefectures
Japan
title Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
title_full Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
title_fullStr Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
title_full_unstemmed Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
title_short Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
title_sort familial clusters of coronavirus disease in 10 prefectures japan february may 2020
topic coronavirus disease
COVID-19
respiratory infections
familial clusters
prefectures
Japan
url https://wwwnc.cdc.gov/eid/article/27/3/20-3882_article
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