Underperformance of Reverse-Transcriptase Polymerase Chain Reaction in Japan and Potential Implications From Diamond Princess Cruise Ship and Other Countries During the Ongoing COVID-19 Pandemic

• Akihiko Ozaki Medical Governance Research Institute, Tokyo, Japan

• Jiwei Wang School of Public Health, Fudan University, Shanghai, China

• Kana Yamamoto Department of Reproductive, Developmental and Aging Sciences, Graduate School of Medicine, University of Tokyo, Tokyo, Japan

• Ranjit Sah Tribhuvan University Institute of Medicine, Kathmandu, Nepal

• Tetsuya Tanimoto Medical Governance Research Institute, Tokyo, Japan

• Toyoaki Sawano Department of Surgery, Sendai City Medical Center, Miyagi, Japan

• Yuki Senoo Medical Governance Research Institute, Tokyo, Japan