Research field (1)：
Healthcare management, medical sociology
Research keywords (2)：
Mathematical epidemiology
, Medical Statistics
Research theme for competitive and other funds (3)：
2018 - 2020 Accuracy evaluation of predicted disease state transition by Markov model and its application to cost-effectiveness analysis
2016 - 2017 Statistical methodology for evaluation of survival rate improvement by cancer screening and its application to HCC surveillance
2011 - 2012 Mathematical and epidemiological analysis and prediction of mortality due to hepatocellular carcinoma
Papers (113)：
Ko, Ko, Takahashi, Kazuaki, Ito, Noriaki, Sugiyama, Aya, Nagashima, Shintaro, Miwata, Kei, Kitahara, Yoshihiro, Okimoto, Mafumi, Ouoba, Serge, Akuffo, Golda Ataa, et al. Despite low viral titer in saliva samples, Sanger-based SARS-CoV-2 spike gene sequencing is highly applicable for the variant identification. BMC MEDICAL GENOMICS. 2023. 16. 1
Lawal-Ayinde, Basirat Mojisola, Morita, Tomoko, Oda, Kosuke, Nazmul, Tanuza, Kurose, Miuko, Nomura, Toshihito, Yamamoto, Akima, Higashiura, Akifumi, Akita, Tomoyuki, Tanaka, Junko, et al. Virus purification highlights the high susceptibility of SARS-CoV-2 to a chlorine-based disinfectant, chlorous acid. PLOS ONE. 2023. 18. 7
Imada, Hirohito, Akita, Tomoyuki, Sugiyama, Aya, Tanaka, Junko. Trend of blood donors entering the coronavirus pandemic era and challenges: Age-period-cohort analysis using 75.5 million all blood donations data during 2006-2020 in Japan. TRANSFUSION. 2023. 63. 6. 1184-1194
Bunthen, E., Ko, Ko, Kim, Rattana, Nagashima, Shintaro, Ouoba, Serge, Hussain, Md Razeen Ashraf, Sato, Tomoki, Chuon, Channarena, Abe, Kanon, Sugiyama, Aya, et al. Residual risk of mother-to-child transmission of HBV despite timely Hepatitis B vaccination: a major challenge to eliminate hepatitis B infection in Cambodia. BMC INFECTIOUS DISEASES. 2023. 23. 1
Ouoba, Serge, Ko, Ko, Lingani, Moussa, Nagashima, Shintaro, Guingane, Alice N., Bunthen, E., Hussain, Md Razeen Ashraf, Sugiyama, Aya, Akita, Tomoyuki, Ohisa, Masayuki, et al. Intermediate hepatitis B virus infection prevalence among 1622 pregnant women in rural Burkina Faso and implications for mother-to-child transmission. SCIENTIFIC REPORTS. 2023. 13. 1
