[Joint infection in a young patient caused by Streptococcus uberis, a pathogen of bovine mastitis--a case report].

In a 40-year-old, previously healthy person presenting with initial septic signs, a purulent infection of the knee joint caused by Streptococcus uberis was detected. Known as a pathogen for bovine mastitis this Streptococcus can cause a purulent joint infection in healthy, young humans by haematogenic spread with a persistent loss of function.