A Longitudinal Case Study on Dissemination of ST398 Methicillin-Resistant Within a Dairy Cow Herd.

The study was conducted to describe the dynamics of ST398 methicillin-resistant (MRSA) on a dairy herd in northeastern Italy. MRSA was first identified in this herd of 120 cows in 2016, after which the herd was sampled once every 3 months for 1 year (April 2016-May 2017). Samples collected included nasal swabs and milk samples from cows and nasal swabs from farmworkers.