広島県COVID-19版J-SPEED

（論文）

1. Nagata, T., Chimed-Ochir, O., Yumiya, Y., Tanaka, J., Kuwabara, M., Kitahara, K., Ohge, H., & Kubo, T. (2025). Effect of individual preventive practices on COVID-19 infection: an analysis of big data collected at PCR testing centers in Hiroshima, Japan. BMC Public Health, 25(1), 681. https://doi.org/10.1186/s12889-025-21709-4

2. Ota, Y., Yumiya, Y., Chimed-Ochir, O., Hasegawa, A., Yoshida, T., Nagata, T., Tanaka, J., Ohge, H., Kuwabara, M., & Kubo, T. (2025). Characteristics of patients with COVID-19 and smell and/or taste disorders depending on different virus strains: a cross-sectional study in Hiroshima, Japan. BMJ Open, 15. https://doi.org/10.1136/bmjopen-2024-088377

3. Miyoshi, Yuki, Odgerel Chimed-Ochir, Yui Yumiya, Eisaku Kishita, Junko Tanaka, and Tatsuhiko Kubo. (2023). Effect of Vaccine Booster Dose on Coronavirus Disease 2019 Prevention by Age Group: Analysis of Data Collected at Polymerase Chain Reaction Centers in Hiroshima Prefecture, Japan.  Hiroshima Journal of Medical Sciences 72 (1-2): 1–4. https://doi.org/10.24811/hjms.72.1-2_1. 

4. Hujamberdieva, L. M., Chimed-Ochir, O., Yumiya, Y., Tanaka, J., Ohge, H., Kuwabara, M., Kishita, E., & Kubo, T. (2023). Relationship between clinical symptom profiles and COVID-19 infection status during Delta-dominant period versus Omicron-dominant period-analysis of real-world data collected in Hiroshima Prefecture, Japan. International Journal of Infectious Diseases: IJID: Official Publication of the International Society for Infectious Diseases, 136, 92–99. https://doi.org/10.1016/j.ijid.2023.09.007

5. Yamaguchi, D., Chimed-Ochir, O., Yumiya, Y., Kishita, E., Akita, T., Tanaka, J., & Kubo, T. (2024). Potential Risk Factors to COVID-19 Severity: Comparison of SARS-CoV-2 Delta- and Omicron-Dominant Periods. International Journal of Environmental Research and Public Health, 21(3). https://doi.org/10.3390/ijerph21030322

6. Yumiya, Y., Kawanishi, K., Chimed-Ochir, O., Kishita, E., Sugiyama, A., Tanaka, J., & Kubo, T. (2024). Effectiveness of COVID-19 mRNA vaccine in preventing infection against Omicron strain: Findings from the Hiroshima Prefecture COVID-19 version J-SPEED for PCR center. PLOS Global Public Health, 4(4), e0003071. https://doi.org/10.1371/journal.pgph.0003071

7. Sugimura, M., Chimed-Ochir, O., Yumiya, Y., Ohge, H., Shime, N., Sakaguchi, T., Tanaka, J., Takafuta, T., Mimori, M., Kuwabara, M., Asahara, T., Kishita, E., & Kubo, T. (2021). The association between wearing a mask and COVID-19. International Journal of Environmental Research and Public Health, 18(17). https://doi.org/10.3390/ijerph18179131