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Salmonella inactivated SC neck injection. Intense reactions were observed in the neck region. Extensive yellow caseous necrosis.

Postvaccinal reactions
Trachea: caseous plug, due to postvaccinal reaction (live newcastle vaccine).
Postvaccinal reactions
A respiratory vaccine reaction in broiler chicks, 7 days old (vaccinated at hatch, with live newcastle vaccine).
Postvaccinal reactions
A respiratory vaccine reaction in broiler chicks, 7 days old (vaccinated at hatch, with live newcastle vaccine)