| evolution of drug resistance in salmonella panama isolates in chile. | in a search for salmonella isolates in the environment in chile in 1975, drug-susceptible strains of salmonella panama were recovered for the first time from river water and vegetables in the vicinity of santiago. two to 3 years later, antibiotic-resistant s. panama began to appear in a variety of sources (meat, animals, vegetables, etc.), giving rise to a human epidemic that involved the entire nation. of 139 clinical isolates studied, 7 were drug susceptible, 11 were resistant only to nitrofur ... | 1996 | 8834876 |