Resistance to antibiotics in injured coliforms isolated from drinking water

Microbiol Immunol. 2001;45(5):383-6. doi: 10.1111/j.1348-0421.2001.tb02634.x.


We studied the antibiotic sensitivity of injured coliforms isolated from drinking water of La Plata, Argentina. The antibiotic sensitivity test by the agar diffusion method were proved in: Klebsiella oxytoca (14 strains), Enterobacter aerogenes (4 strains) and Enterobacter cloacae genomic group 3 (14 strains). We found that while these impaired total coliforms were sensitive to piperacillin-tazobactam (TAZ), netilmicin (NTL), ofloxacin (OFLX), and norfloxacin (NFLX) (100%), they had resistant to aminopenicillin-sulbactam (AMS) and nitrofurantoin (NIT) (100%). The resistance to antibiotics demonstrated in these strains would point to the need to promote a rational and judicious use of antimicrobial agents while at the same time implementing a program of active vigilance aimed at ensuring the highest quality of drinking water throughout the system.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Argentina
  • Drug Resistance, Bacterial
  • Enterobacteriaceae / drug effects*
  • Enterobacteriaceae / isolation & purification
  • Fresh Water / microbiology*
  • Microbial Sensitivity Tests
  • Water Microbiology
  • Water Supply


  • Anti-Bacterial Agents