Salmonella enteritidis is considered to have a silent spread in poultry houses.

• A. True
• B. False
• C. Not always
• D. Unknown

Answer: (A)

Salmonella enteritidis can spread without obvious signs in a flock because many birds become asymptomatic carriers who shed the organism in feces and can contaminate eggs and the environment. In poultry, the bacteria can colonize the gut and, in layers, the oviduct, leading to contamination of eggs before shells form even when the birds look healthy. Environmental persistence in litter, waterers, and equipment allows continual transmission within a house. Because disease signs are not reliably present, detection depends on targeted testing and environmental sampling rather than just watching for illness. This silent carriage makes control challenging, underscoring why the statement is considered true: the spread can occur quietly through a flock and across production stages without apparent disease.