title: [Appearance of Fong's "protection factor" in animals vaccinated with Savioli's diffusing vaccine].
mesh_terms: D000818:Animals; D001500:BCG Vaccine / Q000009:adverse effects; D006168:Guinea Pigs; D010587:Phagocytosis; D014611:Vaccination / Q000009:adverse effects; D014774:Virulence
chemical_list: D001500:BCG Vaccine
vernacular_title: Sulla comparsa del "fatore di protezione" di Fong nell'animale vaccinato con V.D.