Streptococcus uberis is often resistant to antibiotic treatment and the cost of discarded milk too high to make treatment of the pathogen a practical management approach. While Streptococcus uberis infection typically results in markedly elevated somatic cell counts, no visible changes in the milk or palpable difference in the affected quarter are usually present. To make diagnosis even more challenging, more often than not, streptococcal mastitis can’t be detected by California Mastitis Test (CMT) because of its relatively high limit of detection. If you are a dairy producer who struggles with high somatic cell counts, contact your veterinarian today to discuss the Hygieia Streptococcus Uberis Bacterin vaccine.