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Biofilm formation on different pH conditions by Streptococcus agalactiae isolated from bovine mastitic milk.

P S D MirandaP S Lannes-CostaB A S PimentelL G SilvaB T Ferreira-CarvalhoG C MenezesA L Mattos-GuaraldiR HirataR A MotaPrescilla Emy Nagao
Published in: Letters in applied microbiology (2018)
Streptococcus agalactiae is among the most relevant aetiologic agent of bovine clinical and subclinical mastitis, a major problem for the dairy industry. The disease may cause significant economic loss due to decreased production and milk quality and increased use of medicaments. Presently, data demonstrated that biofilm formation favours the establishment of infectious process in health mammary tissue by S. agalactiae and emphasizes that an acidic pH promotes adhesion by biofilm-forming bacterial strains. S. agalactiae strains (25%) showed resistance to tetracycline, azithromycin, erythromycin and clindamycin, and consequently were classified as multidrug-resistant strains.
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