Salmonella vaccination of poultry flocks is a common practice in most countries. Nevertheless, it has only recently become a new trend on indonesian farms.

Salmonella vaccines have been registered on the indonesian market to reduce Salmonella prevalence at farm level. However, the emphasis on Salmonella control has increased due to rising food safety concerns and awareness of antimicrobial resistance created by the local public health authorities.

Inactivated Salmonella vaccines are known to induce the production of antibodies, generally distributed to organs and the gut, providing vertical protection to the offspring, and memory cells as well. Since farmers and producers are adopting vaccination in Salmonella control, they would like to understand the efficacy after the usage of inactivated Salmonella vaccines on their farms.