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a parainfluenza virus type 1 reported to cause inapparent infection in many animals; also used extensively to effect fusion of tissue culture cells.
A paramyxovirus that causes respiratory tract infections in mice, rats, and other mammals, used in the laboratory to induce the formation of hybridoma cells that produce monoclonal antibodies.
a paramyxovirus that causes a highly contagious disease of the respiratory tract of mice. It also affects rats but is usually subclinical in that species. The syndrome is one of pneumonia with dyspnea and a high mortality rate in young mice.