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

Emerg Infect Dis. 2020 Jun;26(6):1345-1348. doi: 10.3201/eid2606.200452. Epub 2020 Jun 17.


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.

Keywords: COVID-19; Japan; PCR; SARS-CoV-2; coronavirus; cruise ship; global health; respiratory infections; severe acute respiratory syndrome coronavirus 2; travelers health; viruses.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Betacoronavirus
  • COVID-19
  • Coronavirus Infections / diagnosis*
  • Female
  • Humans
  • Japan
  • Male
  • Pandemics
  • Pneumonia, Viral / diagnosis*
  • Respiratory Tract Infections / diagnosis
  • Respiratory Tract Infections / virology
  • SARS-CoV-2
  • Ships*