COVID-19 in 2 Persons with Mild Upper Respiratory Tract Symptoms on a Cruise Ship, Japan - Volume 26, Number 6—June 2020 - Emerging Infectious Diseases journal - CDC

COVID-19 in 2 Persons with Mild Upper Respiratory Tract Symptoms on a Cruise Ship, Japan - Volume 26, Number 6—June 2020 - Emerging Infectious Diseases journal - CDC

Volume 26, Number 6—June 2020

Research Letter

COVID-19 in 2 Persons with Mild Upper Respiratory Tract Symptoms on a Cruise Ship, Japan

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Takeshi Arashiro , Keiichi Furukawa, and Akira Nakamura

Author affiliations: Asahi General Hospital, Chiba, Japan

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Abstract

We describe 2 cases of coronavirus disease in patients with mild upper respiratory symptoms. Both patients worked on a cruise ship quarantined off the coast of Japan. One patient had persistent, low-grade upper respiratory tract symptoms without fever. The other patient had rapid symptom cessation but persistent viral RNA detection.

Since December 2019, an outbreak of coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been spreading globally (1). On January 25, 2020, a passenger disembarked a cruise ship in Hong Kong and on February 1 tested positive for SARS-CoV-2 (2). The ship docked in Yokohama, Japan, on February 3 for quarantine and isolation. On February 7, passengers and crew were provided thermometers and asked to check their temperature several times daily. Crew members were instructed to continue duties, report fever or respiratory symptoms, and follow quarantine instructions.