title: The Newcastle disease epidemic in southern California, 1971--1973: descriptive epidemiology and effects of vaccination on the eradication program.
mesh_terms: D000818:Animals; D002140:California; D002645:Chickens; D004196:Disease Outbreaks / Q000453:epidemiology / Q000662:veterinary*; D009521:Newcastle Disease / Q000453:epidemiology* / Q000517:prevention & control; D011200:Poultry; D011201:Poultry Diseases / Q000453:epidemiology* / Q000517:prevention & control; D014611:Vaccination / Q000662:veterinary*