Impending rupture of mycotic aortic aneurysm infected with Streptococcus equi subspecies zooepidemicus.

Streptococcus equi subspecies zooepidemicus is a beta-haemolytic, group C streptococcal bacterium. Although it is an opportunistic pathogen commonly found in horses, transmission to human can lead to severe infections. Here, we present a patient with S. equi subspecies zooepidemicus bacteraemia and consequent development of mycotic aneurysms.