(CIDRAP News) A recent analysis of ground pork in grocery stores in five states showed that 4% of the samples contained enterococci with high-level resistance to gentamicin, an antibiotic used to treat enterococcal infections in humans. In addition, most Enterococcus faecium isolates were resistant to quinupristin-dalfopristin (Synercid), a streptogramin antibiotic used to treat infections caused by vancomycin-resistant E faecium.