Strangles, a respiratory infection of horses caused by Streptococcus equi bacteria, was acknowledged as a major threat when horses were still used for work and transportation. Despite reduced awareness of strangles, this threat still remains, but recent research shows that it can be contained much more successfully now compared to a century ago. To find out more, listen to our interview with Professors Josh Slater and Ken Smith, who will provide an interesting insight into the pathogenesis, prevalence and possible prevention of Streptococcus equi infections in horses.