Antibiotic

Species

ce,fotaxime

Chloramphenicol

Streptomycin

Rifampicin

Ampicillin

Tetracycline

Penicillin G

Gentamycin

Escherichia coli

R^*

R

R

R

R

S^*

R

S

Proteus mirabilis

R

R

S

R

R

S

R

S

Klebsiella pneumonia

S

R

R

R

R

S

R

S

Citrobacter freundii

S

R

S

R

R

S

R

S

Providencia stuartii

R

R

R

R

R

R

S

R

Erwinia sp.

R

S

R

S

R

S

R

S