試験管内でStreptomycin耐性を獲得した大腸菌の他種抗菌物質に対する感受性に関する研究

抄録

1) Of 18 strains of Escherichia coli, which acquiréd Streptomycin resistance in vitro, 4 strains acquired Sulfanilamide resistance simultaneously in contamination with Streptomycin.
2) But no Chlorampheuicol nor tetracycline resistant bacteria is observed.
3) 2 strains of the 18 Streptomycin resistaut strains, acquired severe Penicillin sensitivity. On the reasons, authors are researching now. It may be phenomenon of “Collateral Sensitivty (SZYBALSKI)”.