Associate professor Michiko Toizumi

Speciality / Research theme / Keywords
Paediatrics, Neonatology, Epidemiology, Public Health, Virology
Masters ProgrammeDoctoral Programme


  • MD
  • MTM
  • PhD

Personal/work Web page addresses



Department of Pediatric Infectious Diseases, Institute of Tropical Medicine (NEKKEN), Nagasaki University


I graduated from Kumamoto University Medical School, Japan and then had worked as a pediatrician for 8 years. Following that, I had studied tropical medicine and pediatric infectious diseases in the Master course of Tropical Medicine and in the Doctoral course in Graduate School of Biomedical Sciences, Nagasaki University. After I received my PhD, I joined the Department of Pediatric Infectious Diseases, the Institute of Tropical Medicine, Nagasaki University as an assistant professor in 2015.


Facilitator of Epidemiology-Statistics Course in School of Tropical Medicine and Global Health, Nagasaki University


Studies on pediatric infectious diseases in Vietnam:

Acute respiratory infections (incidence, viral/bacterial pathogens, risk factors)

Congenital infections (e.g.,rubella, CMV, Zika) and the effect on child development

Pneumococcal conjugate vaccine reduced dosing trial

The country/countries where you work currently


Five MOST IMPORTANT/INTERESTING recent publications

  1. Michiko Toizumi, Motoi Suzuki, Hien Anh Thi Nguyen, Minh Nhat Le, Koya Ariyoshi, Hiroyuki Moriuchi, Masahiro Hashizume, Duc Anh Dang, and Lay-Myint Yoshida
    Viral Acute Respiratory Illnesses in Young Infants Increase the Risk of Respiratory Readmission
    The Pediatric Infectious Disease Journal, in press
  2. Imai, C., Toizumi, M., Hall, L., Lambert, S., Halton, K., Merollini, K.
    A systematic review and meta-analysis of the direct epidemiological and economic effects of seasonal influenza vaccination on healthcare workers
    (2018) PLoS ONE, 13 (6), art. no. e0198685
  3. Toizumi, M., Nguyen, G.T.H., Motomura, H., Nguyen, T.H., Pham, E., Kaneko, K.-I., Uematsu, M., Nguyen, H.A.T., Dang, D.A., Hashizume, M., Yoshida, L.-M., Moriuchi, H.
    Sensory defects and developmental delay among children with congenital rubella syndrome
    (2017) Scientific Reports, 7, art. no. 46483.
    DOI: 10.1038/srep46483
  4. Yoshihara, K., Le, M.N., Okamoto, M., Wadagni, A.C.A., Nguyen, H.A., Toizumi, M., Pham, E., Suzuki, M., Nguyen, A.T.T., Oshitani, H., Ariyoshi, K., Moriuchi, H., Hashizume, M., Dang, D.A., Yoshida, L.-M.
    Association of RSV-A ON1 genotype with Increased Pediatric Acute Lower Respiratory Tract Infection in Vietnam
    (2016) Scientific Reports, 6, art. no. 27856.
    DOI: 10.1038/srep27856
  5. Yamanashi, H., Ngoc, M.Q., Van Huy, T., Suzuki, M., Tsujino, A., Toizumi, M., Takahashi, K., Thiem, V.D., Anh, D.D., Anh, N.T.H., Tho, L.H., Maeda, T., Cox, S.E., Yoshida, L.-M., Ariyoshi, K.
    Population-based incidence rates of first-ever stroke in central Vietnam
    (2016) PLoS ONE, 11 (8), art. no. e0160665.
    DOI: 10.1371/journal.pone.0160665


Please join us if you are interested in our researches on pediatric infectious diseases!