Avian vaccine composition for the protection of poultry against disease and infection caused by E. coli and Salmonella
There is provided a vaccine composition comprising a combination of a genetic deletion mutant S. typhimurium microorganism and a genetic deletion mutant E. coli microorganism, suitable for mass application to poultry. Also provided is a safe and effective method to protect poultry against the ravages of E. coli and Salmonella infection and disease.
Wyeth
A A A C A A Y A
A61K A61K A61K C12N A61P A61P Y02A A61K
inventional additional additional inventional inventional inventional additional inventional
Mahesh Henry H.
Kumar Fan