Treatment and Control
Treatment and control are as for pullorum disease (see Pullorum Disease in Poultry). There are no federally licensed vaccines in the USA. In other countries, vaccines (killed or modified live) made from a rough strain of S Gallinarum (9R) had variable results in controlling mortality. More recently, vaccines derived from outer membrane proteins, mutant strains, and a virulence-plasmid-cured derivative of S Gallinarum have shown promise in protecting birds against challenge. The standard serologic tests for pullorum disease are equally effective in detecting fowl typhoid.