10 of 11 clinical isolates of serratia marcescens yielded small numbers ( 10 ( -7 ) to 10 ( -8 ) ) of 'gray ' colony-type variants after selection with either amikacin , gentamicin or kanamycin , of which most proved resistant against all of the following aminoglycoside antibiotics : amikacin , gentamicin , kanamycin , neomycin , netilmicin , sisomicin and streptomycin .
C0027780
netilmicin
C0037209
sisomicin