Streptococcus uberis cultivated on A, SELMA and B, SELMA Plus plates. Image: Karl-Erik Johansson (SLU), Fereshteh Banihashem (SVA) & Helén Mönnig (SVA).
In Sweden, the proportion of S. uberis induced acute clinical mastitis constituted 11% over the past 10 years. SELMA and SELMA Plus plates are used for cultivation of milk samples from suspected mastitis cases. It is often possible to make a preliminary diagnosis from the results. Note that S. uberis is only growing in the sector with bovine blood agar with esculine.