title: Original antigenic sin to influenza in rats.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000096:biosynthesis; D000956:Antigens, Viral / Q000276:immunology; D004195:Disease Models, Animal; D007115:Immunization Schedule; D007156:Immunologic Memory; D009980:Influenza A virus / Q000276:immunology; D008297:Male; D009976:Orthomyxoviridae Infections / Q000276:immunology*; D051381:Rats
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral