In Vitro Aminoglycoside Resistance of Gram-negative Bacilli and Staphylococci Isolated from Blood in Sweden 1980–1984

Abstract
The in vitro susceptibility to gentamicin, tobramycin, amikacin and netilmicin in septicaemia isolates was followed during 1980–1984 in 6–8 Swedish laboratories. The bacterial distribution was similar over the years and was dominated by Escherichia coli and staphylococci. Resistance to gentamicin was found in 2.3–3.6%, to tobramycin in 1.4–3.4%, to amikacin and netilmicin in 0.5–0.9%. Production of aminoglycoside modifying enzymes was observed among resistant strains.