title: Two-plaque-size variants of foot-and-mouth disease virus differing in neutralization by guinea-pig antisera.
mesh_terms: D000818:Animals; D005537:Aphthovirus / Q000145:classification / Q000276:immunology*; D014644:Genetic Variation; D006168:Guinea Pigs; D007106:Immune Sera; D009500:Neutralization Tests; D013045:Species Specificity
chemical_list: D007106:Immune Sera