One hundred and forty strains of shigella cultures isolated from the twelve hygiene laboratories of cities and provincial general hospital laboratories in 1983 were tested for their resistance to thirteen antimicrobial agents.
Antimicrobial agents used were amikacin, ampicillin, cephalothin, chloramphenicol, gentamicin, kanamycin, nalidixic acid, rifampicin, streptamycin, tetracycline, tobramycin, cefoperazone and piperacillin.
All strains were resistant to one or more of thirteen antimicrobial agents, but 94.3% were susceptible to amikacin, gentamicin and tobramycin.
The most common strins found resistant were to chloramphenicol (94%) followed by streptamycin (93%), tetracyline (92%), piperacillin (90%), ampicillin (83%), cefoperazone (42%), nalidixic acid (14%), cephalothin (170), rifampicin (22%) and kanamycin (6%) and sixty percent of strains among 140 were resistant to ampicillin, chloramphenicol, streptomycin and tetracycline simultaneously.
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