Cows suffer from Salmonella-related illnesses just as much as people. Infected cows that carry Salmonella Cerro can produce contaminated milk, and this can pose a risk for consumers and farm workers handling sick animals. Martin Wiedmann, a Cornell University microbiologist, is working to solve the mystery and trace the origin of Salmonella Cerro. He employed a tool known as comparative genomics, which allows scientists to align and analyze DNA sequences from hundreds of genomes to identify common traits as well as those acquired from other microbes. Comparative genomics allowed Wiedmann's team to identify point mutations – deviations from the DNA sequence that led them to the common ancestor and a geographic origin of the Salmonella Cerro outbreak strain.
NIFA supports the research through the Hatch Act funds.
Read more at Science Direct.
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