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are explored, as well as some challenges and limitations. Health Topics:  Health and environment Burden of disease Santé et environnement Gezondheid en milieu Fardeau de la maladie Ziektelast Service:  ...

full clinical protection and a significant or complete reduction of viral shedding against homologous challenge at 6 and 25 weeks of age. The heterologous clade 2.3.4.4b challenge of 6-week-old chickens ...