Differences in intramammary pathogenicity of four strains of Streptococcus dysgalactiae.
The intramammary pathogenicity of four strains of Streptococcus dysgalactiae was measured by infusion of small numbers of bacteria (8-16 colony-forming units) into the teat sinus after milking. Significant differences in the infectivity of strains were detected.
D000818:Animals; D002417:Cattle; D002452:Cell Count; D006801:Humans; D008321:Mammary Glands, Animal / Q000382:microbiology*; D008414:Mastitis, Bovine / Q000382:microbiology; D013290:Streptococcal Infections / Q000382:microbiology / Q000662:veterinary; D013291:Streptococcus / Q000472:pathogenicity*