Professor Kouichi Morita

Speciality / Research theme / Keywords
Masters Programme


M.D. & Ph.D.

Personal/work Web page addresses



Institute of Tropical Medicine (ITM), Nagasaki University (NU)


  • 2013-present Dean, Institute of Tropical Medicine, Nagasaki University
  • 2001-present Professor, Head of Department of Virology, ITM, NUHead of WHO Collaborating Centre, for Tropical Virus Diseases.
  • 1998-2001 Lecturer, Department of Virology, ITM, NU
  • 1995-1998 Regional Advisor, Regional Office for the Western Pacific, WHO
  • 1987-1995 Assistant Professor, Department of Virology, Nagasaki University
  • 1985-1987 Postdoc, University of Medicine and Dentistry of New Jersey, USA


I will give lecture on virology with particular emphasis on arthropod borne viral disease, such as dengue fever, Japanese encephalitis, West Nile fever, yellow fever etc.


Research activities of my group are as follows:

  • Field epidemiology on arthropod borne diseases in Japan, Kenya, Nepal, Myanmar, Philippines, Vietnam,
  • Vaccine development of dengue,
  • Identification of factor(s) for vascular permeability in dengue
  • Development of mobile phone based disease surveylance system
  • Development of Point of care test for various infectious arbviruses

The country/countries where you work currently

  • Vietnam
  • Kenya
  • Philippines
  • Myanmar
  • Nepal
  • Japan

Five MOST IMPORTANT/INTERESTING recent publications

  1. Takamatsu Y, Uchida L, Morita K. Delayed IFN response differentiates replication of West Nile virus and Japanese encephalitis virus in human neuroblastoma and glioblastoma cells. J Gen Virol. 96(8):2194-2199.(2015)
  2. Leo Uchida, Lyre Anni Espada-Murao, Yuki Takamatsu, Kenta Okamoto, Daisuke Hayasaka, Fuxun Yu, Takeshi Nabeshima, Corazon C. Buerano and Kouichi Morita. The dengue virus conceals double-stranded RNA in the intracellular membrane to escape from an interferon response. Scientific Reports. 4:7395.(2014)
  3. Chris Lauber, Jelle J. Goeman, Maria del Carmen Parquet, Phan Thi Nga4, Eric J. Snijder1, Kouichi Morita, Alexander E. Gorbalenya, The Footprint of Genome Architecture in the Largest Genome Expansion in RNA Viruses. PLoS Pathogens. 9(7):e1003500.(2013)
  4. Futoshi Hasebe, Nguyen Thi Thu Thuy, Shingo Inoue, Fuxun Yu, Yoshihiro Kaku, Shumpei Watanabe, Hiroomi Akashi, Dang Tuan Dat, Le Thi Quynh Mai, Kouichi Morita. Serologic Evidence of Nipah Virus Infection in Bats, Vietnam. Emerging Infectious Diseases. Vol.18 (3):536-7.(2012)
  5. Lyre Anni Espada-Murao and Kouichi Morita. Delayed cytosolic exposure of Japanese encephalitis virus double-stranded RNA impedes interferon activation and enhances viral dissemination in porcine cells. Journal of Virology. Vol.85(13):6736-6749.(2011)


I am researching viral infectious diseases carried by mosquitoes and mites. Dengue is a typical such disease, and its prevalence and the worsening of related medical conditions are related to various factors such as changes in natural and social environments and biological properties unique to the virus: This presents many useful findings for considering the health problems of developing countries in the tropical zone.

I look forward to engaging in deep discussions with the students who will be expected to play major roles in the global health field while viewing tropical diseases from the molecular level to the global level.