Pigeon-associated strains of Salmonella enterica serovar Typhimurium phage type DT2 have genomic rearrangements at rRNA operons.

@article{Helm2004PigeonassociatedSO,
  title={Pigeon-associated strains of Salmonella enterica serovar Typhimurium phage type DT2 have genomic rearrangements at rRNA operons.},
  author={Richard Allen Helm and Steffen Porwollik and April E Stanley and S. Maloy and Michael McClelland and Wolfgang Rabsch and Abraham Eisenstark},
  journal={Infection and immunity},
  year={2004},
  volume={72 12},
  pages={7338-41}
}
Strains from a subgroup of Salmonella enterica serovar Typhimurium frequently associated with pigeon infections were tested for genomic anomalies and virulence in mice. Some strains have a genomic inversion between rrn operons. Two prophages found in the common laboratory strain LT2 were absent. Pigeon-associated strains are still virulent in mice.