Okayama University: Analysis of Infection Status and Healthcare System in Okayama Prefecture (As of April 13, 2026)

May 1, 2026 (Reiwa 8) National University Corporation Okayama University

https://www.okayama-u.ac.jp/

◆ Overview

Data on patient reports and the healthcare system (※) published on the Okayama Prefecture website has been compiled, with comments added by volunteer experts from Okayama Prefecture. Updates are planned once a week.

Furthermore, it is presented in an easy-to-understand single sheet, referencing Tokyo Metropolitan Government's "Analysis and Summary Comments on the Latest Monitoring Items." We hope it will be useful for understanding the situation within the prefecture.

The World Health Organization (WHO) has declared the end of the COVID-19 pandemic, and normal life has returned in Japan. However, we continue to provide information with the hope that it will be useful for understanding the infection and healthcare system situation in Okayama Prefecture, and for your daily infection prevention measures. Thank you for your continued support.

*After the reclassification to Category 5, the number of patient reports per fixed point is used.

◆ Analysis of Infection Status and Healthcare System [As of Monday, April 13, 2026]

The number of reported COVID-19 cases per fixed point has decreased to 0.34 people. The situation is also calm nationwide.

Hospitalized patients due to COVID-19 continue to occur. Infection control measures appropriate to the situation and early diagnosis and treatment for high-risk patients are necessary.

Seasonal influenza has decreased from the previous week (number of reported cases per fixed point is 3.80 people). The alert has shifted from a warning to an advisory. Group A streptococcal pharyngitis is prevalent.

◆ Volunteer Experts from Okayama Prefecture

Yasunori Ichimura (National Institute of Health Sciences, Bureau of International Medical Cooperation) Hidetake Hagiya (Okayama University Hospital, Infectious Diseases Department) Koji Fujita (Tsuyama Chuo Hospital, General Internal Medicine and Infectious Diseases Department) Harushi Yamada (Okayama City Hospital, Infectious Diseases Department) Daisuke Yoshioka (Kawasaki Medical University, Clinical Infectious Diseases; Kawasaki Medical University Hospital, Infection Control Office) Takashi Yorifuji (Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Epidemiology and Public Health)

(In alphabetical order)

◆ References

・Analysis of infection status and healthcare system in Okayama Prefecture (As of March 30, 2026)

https://prtimes.jp/main/html/rd/p/000003932.000072793.html

・Analysis of infection status and healthcare system in Okayama Prefecture (As of April 6, 2026)

https://prtimes.jp/main/html/rd/p/000003950.000072793.html

◆ Related Information ・Videos created by Okayama Prefecture Cluster Response Team volunteers, useful collections for clinics and workplaces http://www.unit-gp.jp/eisei/wp/?p=4631 ・COVID-19 Vaccine Information http://www.unit-gp.jp/eisei/wp/?p=4923 ・Okayama University's response to COVID-19 https://www.okayama-u.ac.jp/tp/profile/aboutcoronavirus.html ・Okayama University Hospital https://www.okayama-u.ac.jp/user/hospital/ ・Okayama University Hospital COVID-19 Aftercare Outpatient Clinic https://www.okayama-u.ac.jp/user/hospital/index377.html ・[Okayama University] Large emergency transport vehicle "Doctor Car" equipped with ECMO deployed at Okayama University Hospital https://prtimes.jp/main/html/rd/p/000000241.000072793.html ・[Okayama University] Cooperation with WHO: Dr. Hidetake Hagiya dispatched to Papua New Guinea as a COVID-19 expert https://prtimes.jp/main/html/rd/p/000000502.000072793.html ・[Okayama University x Dental Diamond Co., Ltd.] COVID-19 Special Feature Page (Part 18) Released for a limited time https://prtimes.jp/main/html/rd/p/000000290.000072793.html ・[Okayama University x Dental Diamond Co., Ltd.] COVID-19 Special Feature Page (Part 19) Released for a limited time https://prtimes.jp/main/html/rd/p/000000347.000072793.html ・[Okayama University x Dental Diamond Co., Ltd.] COVID-19 Special Feature Page (Part 20) Released for a limited time https://prtimes.jp/main/html/rd/p/000000406.000072793.html ・[Okayama University x Dental Diamond Co., Ltd.] COVID-19 Special Feature Page (Part 21) Limited time