2009-2010 Outbreak: Salmonella enterica subsp. enterica serovar Typhimurium Genome Sequencing

To better understand the genomic relationship of Salmonella enterica subsp. enterica serovar Typhimurium isolates sharing the JPXX01.0014 pulse field gel electrophoresis (PFGE) type, we sequenced and analyzed the whole genome shotgun assemblies of five clinical isolates that were isolated across the United States between 2009 and 2010. Three additional isolates possessing the same PFGE type collected from celery in 2002, raw pecans in 2009 and from California pond water in 2009 were also sequenced. Comparison of all of these sequences with the seven completed S. Typhimurium genomes clearly demonstrate that all of these isolates are nearly identical to S. Typhimurium strain 14082, which has been utilized in laboratory experiments for over two decades.