Infectious Diseases 2024

Infectious Diseases 2024

Early vaccination boosts salmonella vaccine uptake in hens

Front. Microbiol., 15 January 2024 26 April, 2024

A recent study on the early vaccination of laying hens with a live bivalent Salmonella vaccine indicates that vaccinating hens earlier can optimize pullet protection. Live vaccines can be administered via drinking water from the first day of life, but some pullet-rearers choose to wait until the end of the first week to ensure sufficient water consumption. However, this practice leaves the birds unprotected during the crucial first week of life, when they are most susceptible to colonization by field strains.
The study demonstrated successful uptake of both vaccine strains (S. Enteritidis and S. Typhimurium) and increased gut colonization when layer pullets are vaccinated as early as day one. Overall, the study highlights the importance and effectiveness of early vaccination with live Salmonella vaccines in laying hens, showcasing successful vaccine uptake and increased gut colonization, which are crucial factors in controlling Salmonella infection in poultry. In conclusion, the results of this study support the use of early vaccination with live Salmonella vaccines as a valuable tool for Salmonella prevention and control in the poultry industry.