2021 - 2023 Detection of host risk factors of SARS CoV-2 infection in exosomes and other extracellular vesicles in saliva
2019 - 2023 Immunological impact of factors in breast milk on norovirus infection among infants
2019 - 2023 Epidemiological study for control of respiratory syncytial virus from a global perspective
2016 - 2019 Cost-effectiveness analysis of revised Integrated Management of Childhood Illness (IMCI) guidelines for childhood pneumonia in the Philippines
2016 - 2018 The prevalence of asymptomatic norovirus infection among adults in Japan: Large scale prospective cross-sectional survey
2015 - 2018 Selective metagenomic analysis of novel viruses in water environment
2012 - 2016 Transmission dynamics and evolution of influenza viruses in Asia
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Papers (120)：
Chuyao Yu, Maria Carmen A Corpuz, Joseph M Bonifacio, Makiko Kishi, Takeaki Imamura, Yusuke Sayama, Mariko Saito-Obata, Clyde Dapat, Michiko Okamoto, Hitoshi Oshitani, et al. Norovirus-associated diarrhea and asymptomatic infection in children aged under 4 years: a community-cohort study in the Philippines. IJID regions. 2025. 14. 100549-100549
Dulciene M M Queiroz, Lucia L C Braga, Gifone A Rocha, Sérgio A Batista, Andreia M C Rocha, Mayuko Saito, William Checkley, Robert H Gilman, Jean E Crabtree. Infection by Helicobacter pylori cytotoxin-A-associated antigen-positive strains is associated with iron deficiency anemia in a longitudinal birth cohort in Brazil. Haematologica. 2024. 109. 12. 4112-4115
Yusuke Sayama, Chuan Lo, Hiroki Tomizawa, Mayuko Saito, Michiko Okamoto, Suguru Ohmiya, Hidekazu Nishimura, Hitoshi Oshitani. Serological analyses against endemic human coronaviruses and SARS-CoV-2 in children and adults using samples collected before the COVID-19 pandemic. IJID regions. 2024. 13. 100485-100485
Sewwandi Bandara, Clyde Dapat, Wakana Oishi, Emmanuel Kagning Tsinda, Mayuko Saito, Daisuke Sano. Quantitative evaluation of water, sanitation, and hygiene measures on COVID-19 pandemic peak reduction in the Philippines. The Science of the total environment. 2024. 949. 175055-175055
Sewwandi Bandara, Clyde Dapat, Wakana Oishi, Emmanuel Kagning Tsinda, Lea Necitas G Apostol, Naoko Hirayama, Mayuko Saito, Daisuke Sano. Identification of environmental, socioeconomic, water, sanitation, and hygiene (WaSH) factors associated with COVID-19 incidence in the Philippines: A nationwide modelling study. The Science of the total environment. 2024. 946. 174214-174214
Xiaofang Liu, Holger Mayta, Robert H. Gilman, Michiko Okamoto, Lilia Cabrera, Jean E. Crabtree, Vitaliano Cama, Mayuko Saito, Hitoshi Oshitani. THE PREVALENCE AND GENETIC DIVERSITY OF SAPOVIRUS IN A NESTED CASE-CONTROL STUDY OF A PERUVIAN PERI-URBAN COMMUNITY. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE. 2015. 93. 4. 443-443
