Definition: In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
Input: Fusion of MHV-3-immune splenocytes from MHV-3-resistant A/J murine strain, with NS myeloma cells produced several hybridomas. Among eight hybridoma clones, the 1E7A4H1 clone secreted kappa IgG2a apparently directed against the nucleoprotein of the MHV-3 virion. The monoclonal antibody was able to neutralize tile in vitro cytopathic effect of MHV-3 on cultured L2 cells, and was detected by indirect immunofluorescence on MHV-3-infected cultured Y AC cells. In addition, it conferred a significant protection against MHV-3-induced acute disease, if injected intraperitoneally to C57BL/6 mice before inoculation with MHV-3. , Mouse hepatitis viruses (MHVs), members of the coronavirus family, produce various diseases i n t h e mouse and other animal species [16] . They exhibit different tissue tropisms and patterns of infection [1]. The susceptibility of the animals to the virus-induced diseases appears to be genetically controlled at different levels [16] . Serological neutralization patterns of several of the MHVs are very complex [11, 15] and the three structural proteins demonstrated variable degrees of conservation [4, 13] . Coronaviruses are frequently endemic in laboratory mouse colonies [8] . Neutralizing monoclonal antibodies have been recently prepared against the J H M (MHV-4) [2, 4, 17] and MHV-2 [9] strains. In this brief note, we report on a monoclonaI antibody, apparently specific for the nueleo-* Present address: Instituto Butantan, Laboratoria Especial de Immunologia Viral, S~o Paulo, Brazil.

Archives of Virology Protection from mouse hepatitis virus type 3-induced acute disease by an anti-nucleoprotein monoclonal antibody Brief Report