A comparative study of vaccine immunogenicity and Newcastle disease virus strain pathogenicity in Eastern Nigeria.
D000818:Animals; D005260:Female; D007109:Immunity / Q000187:drug effects*; D008297:Male; D009522:Newcastle disease virus / Q000472:pathogenicity*; D009549:Nigeria; D011200:Poultry; D014612:Vaccines / Q000494:pharmacology*
D014612:Vaccines