title: Partial protection of rats against Trypanosoma congolense by passive transfer of IgM.
mesh_terms: D000818:Animals; D007116:Immunization, Passive; D007075:Immunoglobulin M / Q000276:immunology*; D051381:Rats; D013997:Time Factors; D014345:Trypanosoma / Q000276:immunology*; D014353:Trypanosomiasis, African / Q000517:prevention & control*
chemical_list: D007075:Immunoglobulin M