1 Department of Molecular Epidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan. Electronic address: basudevpandey@nagasaki-u.ac.jp.
2 Central Department of Zoology, Tribhuvan University, Kathmandu, Nepal.
3 Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal.
4 Department of Virology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan.
5 Institute for Global Health, University College, London, UK.