Draft Genome Sequences of 19 Salmonella enterica Serovar Typhimurium [4,5:i:−] Strains Resistant to Nalidixic Acid from a Long-Term Outbreak in Italy

ABSTRACT Here, we present the draft genome sequences of 19 Salmonella enterica serovar Typhimurium monophasic variant [4,5:i:−] strains involved in a long-term salmonellosis outbreak that occurred in central Italy in 2013 to 2014.