- Molecular relationships between human parainfluenza virus type 2, and simian viruses 41 and 5: determination of nucleoprotein gene sequences of simian viruses 41 and 5. Tsurudome, M., Oki, N., Higuchi, Y., Miyahara, K., Yoshimoto, M., Mutsuga, N., Kitada, S., Ogawa, M., Miyahara, Y., Okamoto, K. J. Gen. Virol. (1991)