[Protective action of non virulent Streptococcus pyogenes (group A) against infection of the mouse by the same strain in a virulent state].
D000818:Animals; D001431:Bacteriological Techniques; D051379:Mice; D013290:Streptococcal Infections / Q000276:immunology*; D013297:Streptococcus pyogenes / Q000276:immunology*; D014774:Virulence
Action protectrice de Streptococcus pyogenes (groupe A) non virulent contre l'infection de la Souris par la même souche à l'état virulent.