- Immune responses of interferon gamma (IFN-gamma) knock out mice to repeated Haemaphysalis longicornis (Acari: Ixodidae) nymph infestations. Battsetseg, B., Mamiro, K., Inoue, N., Makala, L., Nagasanw, H., Iwakura, Y., Toyoda, Y., Mikami, T., Fujisaki, K. J. Med. Entomol. (2002)