Author Response: Coronavirus Disease 2019 (COVID-19), Infectivity, and the Incubation Period

Jong-Myon Bae

doi:10.3961/jpmph.20.066

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Special Section: COVID-19Correspondence Author Response: Coronavirus Disease 2019 (COVID-19), Infectivity, and the Incubation Period: Jong-Myon Bae; Journal of Preventive Medicine and Public Health 2020;53(2):71-71.
DOI: https://doi.org/10.3961/jpmph.20.066
Published online: March 31, 2020

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Department of Preventive Medicine, Jeju National University School of Medicine, Jeju, Korea

Corresponding author: Jong-Myon Bae, MD, PhD Department of Preventive Medicine, Jeju National University School of Medicine, 102 Jejudaehak-ro, Jeju 63243, Korea E-mail: jmbae@jejunu.ac.kr

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Notes
REFERENCES

See the letter "Letter to the Editor: Coronavirus Disease 2019 (COVID-19), Infectivity, and the Incubation Period" on page 70.

Dear Editor,

I would like to thank Joob and Wiwanitkit for their perceptive questions.

On February 1, 2020 at the start of the epidemiological survey, the most important issue was to assess the development of coronavirus disease 2019-related symptoms and/or signs in the patient during her stay on Jeju Island. However, the patient had already been admitted to a quarantine hospital in China, so I could not contact her directly. Instead, I contacted her daughter, since they were traveling companions. Using WeChat (www.wechat.com) with the assistance of an interpreter, I asked whether the patient’s symptoms appeared during their stay on Jeju Island and inquired about the route of their tour. She stated that her mother’s fever started on January 26, 2020. Therefore, the author interpreted that the patient’s stay on Jeju Island—between January 21, 2020 (-5 days) and January 25, 2020 (-1 day)—was during the incubation period. This estimate was based on a previous report, published on January 29, 2020, stating that the mean incubation period was 5.2 days (95% confidence interval, 4.1 to 7.0) [1].

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CONFLICT OF INTEREST

The authors have no conflicts of interest associated with the material presented in this paper.

REFERENCES

1. Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, et al. Early transmission dynamics in Wuhan, China, of novel coronavirus-infected pneumonia. N Engl J Med 2020;382(13):1199-1207Article PubMed PMC

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