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Bovine mastitis in the metropolitan area of Curitiba: antibiotic resistance and antimicrobial control of the infection BABT
Parada,José Luis; Gonçalves,Dicezar; Soccol,Vanete Tomaz; Lima,Marisa; Soccol,Carlos Ricardo.
A study from cows with mastitis was performed and Staphylococcus aureus was the predominant pathogen in 46.4 % among 153 studied strains from 276 milk samples of infected cows. Antibiotic resistance of 71 S. aureus isolates was determined in order to search resistant strains to antibiotics of clinical interest, as well as to determine their degree of multi-resistance. It was found that 60% of the S. aureus strains presented resistance to β-lactams, but none to oxacillin, teicoplamin or vancomycin. On the other hand, with the aim of reducing the use of current antibiotics and their associated resistance, a new formulation was introduced. The antimicrobial compounds (P22-P32), demonstrated to be effective in 55% of the 76 mastitis cases studied. The use of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mastitis; Staphylococcus aureus; Antibiotic resistance; Infection reduction.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400009
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New method for early detection of two random amplified polymorphic DNA (RAPD) groups of Staphylococcus aureus causing bovine mastitis infection in Paraná State, Brazil BABT
Gonçalves,Dicezar; Gabriel,Jane Eire; Madeira,Humberto Maciel França; Schühli,Guilherme Schnell e; Vicente,Vânia Aparecida.
The aim of this work was to develop a fast and accurate molecular approach to allow early detection of two RAPD groups of S. aureus causing bovine mastitis. Seventy five S. aureus isolates from infected animals were characterized by RAPD. Genomic fragments isolated from the unique bands present in either group were cloned and sequenced. Based on the DNA sequences, specific primers were designed to allow for the simultaneous detection of either group by multiplex PCR of S. aureus DNA isolated from clinical and subclinical bovine mastitis. Results showed that these proposed primers set could be used to detect various clinical and subclinical S. aureus isolates as well as the detection of the microorganism in bulk milk. Their use as a specific method for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Molecular markers; Subclinical mastitis; Clinical mastitis; Mastitis detection.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200014
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