Elbestawy, Ahmed R Muscovy ducks infected with velogenic Newcastle disease virus (genotype VIId) act as carriers to infect in-contact chickens. [electronic resource] - Poultry science Oct 2019 - 4441-4448 p. digital Publication Type: Journal Article ISSN: 1525-3171 Standard No.: 10.3382/ps/pez276 doi Subjects--Topical Terms: AnimalsChickensDucksGenotypeNewcastle Disease--transmissionNewcastle disease virus--geneticsPoultry Diseases--transmission