Andrew J. Bradley

TL;DR: The changes in incidence and pattern of mastitis in the UK over the last four decades are reviewed and apparent changes in the behaviour of E. coli and its ability to cause persistent intramammary infection are discussed.

TL;DR: A survey of clinical and subclinical mastitis was carried out on 97 dairy farms in England and Wales, selected at random from members of a national milk recording scheme to estimate the incidence of clinical mastitis and the mean incidence was 47 cases per 100 cows per year.

TL;DR: Evidence of quarter susceptibility to IMI or the possibility that infection with one organism led to clinical mastitis with another was found, and Kaplan-Meier survival plots indicated thatclinical mastitis associated with dry period infections was more likely to occur earlier in lactation than clinicalmastitis not associated withdry period infections.

TL;DR: To develop effective selection programmes for new traits, the development of large databases is necessary so that high-reliability breeding values can be estimated, and for expensive-to-record traits, extensive phenotyping in combination with genotyping of females is a possibility.

TL;DR: It is demonstrated that MLST is suitable for the differentiation of bovine S. aureus isolates from various sites (milk, teat skin, milking machine unit liners, hands, and bedding) and countries, and that a single clonal group has achieved a widespread distribution and is responsible for the majority of infections.