A new live poultry vaccine, AviPro Salmonella Duo, which provides simultaneous protection against two strains of Salmonella, has been launched by Elanco Animal Health.
Unlike inactivated vaccines, it is administered in drinking water, rather than by injection. This allows mass administration without stressing the birds, saving labour and improving welfare.
A three-dose programme provides immunity throughout lay. It provides an eight-week increase in the period of immunity to 62 and 68 weeks of age for S typhimurium and S enteritidis, respectively.
The strains are grown together through co-fermentation, so each titre has equal potency, allowing both to colonise at the same rate and providing early protection against each Salmonella strain.
Elanco’s poultry veterinary consultant Jessica Cross said the product represented the third generation of vaccines, moving on from the early dead vaccines, through individual live vaccines to the bivalent product.
“Producers will welcome the simplified administration it offers,” she said.
Vets and producers can obtain more information on Salmonella control by visiting http://salmonella360.com/