Six Salmonella Agona strains from an outbreak of 15 days
duration which occurred in a public hospital in Rio de
Janeiro, Brazil, were analyzed. The outbreak involved six
infants (mean age, 24 days; mean body weight, 1612 g), all of
them with severe clinical signs and symptoms. Two of them had
surgical implications, two were preterm and two had
respiratory distress at birth.
The Salmonella strains were resistant to nine
antimicrobial agents (ampicillin, cephalotin, ceftriaxone,
gentamicin, amykacin, trimethoprim-sulfamethoxazole,
chloramphenicol and tetracyclin).
Analysis of the plasmid pattern of the wild strains and of
the transconjugants confirmed that these were identical