Case Study: Use of Vaccination to Control Bovine Mastitis Caused by Staphylococcus a ureus

摘要

Staphylococcus aureus is a major mastitis pathogen and its transmission can occur from cow to cow through milking machine liners, milkers' hands or even flies, acting like a contagious agent. S. aureus herd infection has a great impact on bulk tank somatic cell count (BTSCC) and costs are mainly associated to subclinical mastitis. S. aureus infection treatment response is low and it has the capability to develop biofilm, a virulence factor, increasing natural defenses and antibiotic resistances. Preliminary studies have revealed efficacy from new S. aureus vaccine to be 50% in preventing new infections and 70% in duration of infection (Schukken, 2012).