People: Javier Guitian, Steven Van Winden, Matteo Crotta, Erica Nunney

This project includes extensive analysis of the large body of Johne's disease (JD) data accumulated by the two main milk recording companies through repeated testing of a large number of UK dairy cows, and a longitudinal study of dairy heifers followed up since birth along their entire lives. Such a lengthy study represents a unique opportunity to assess some important questions in relation to JD infection risk and early detection of infection, and it has been made possible by funds received from AHDB through two consecutive 5-year research partnerships. Follow up of the cohort is expected to end in 2021.

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