[Comparative tests of the harmlessness of the activity between the B 1 and LaSota strains of the Newcastle disease virus].
D000818:Animals; D009521:Newcastle Disease / Q000276:immunology*; D009522:Newcastle disease virus / Q000276:immunology* / Q000472:pathogenicity*; D014611:Vaccination; D014765:Viral Vaccines
D014765:Viral Vaccines
Prove comparative di innocuità e di attività tra i ceppi B1 e LaSota di virus della malattia di Newcastle.