Occurrence of Antimicrobial-Resistant spp. in Healthy Chickens Never Exposed to Antimicrobial Agents in Central Italy.

Enterococci are part of the natural flora of the gastrointestinal tract of mammals, including humans, birds and invertebrates. They can cause infection, mainly among hospitalized patients, as well as acquire and transfer antimicrobial resistance genes. The present study allowed the isolation of 98 (73.