Prior to the new test's release, testing had to be done animal by animal. The new antibody test can use milk samples straight from bulk milk tanks to find whether a herd has been exposed. It can also work with blood samples and diagnose individuals, helping keep unexposed herds infection-free by removing infected animals and pre-screening new animals that farmers are considering buying.
“Herd managers can take preventative measures and help control the infection's spread by isolating sick calves, pasteurizing milk, managing cattle movement and improving hygiene,” said Thompson. “But to see if any of this is working, they need a tool to monitor success. We didn't have that until now. This test will let us learn about the prevalence of salmonella dublin on the East Coast and hopefully nip it in the bud.”