Etiology: Salmonella enterica is a Gram-negative, lactose-negative, aerobic, nonlactose fermenting, H2S producing rod. Salmonella enterica serovar Typhimurium has been shown to infect guinea pigs.
Transmission: Salmonellae are transmitted by ingestion through direct contact with contaminated feces, food or fomites.
Public Health Significance: Humans ingesting Salmonella – contaminated food or water experience a transient diarrhea. Children or immunosuppressed adults are susceptible to more serious clinical disease from Salmonella infection .
1. Outbreak of multidrug-resistant Salmonella typhimurium associated with rodents purchased at retail pet stores–United States, December 2003-October 2004. MMWR Morb Mortal Wkly Rep, 2005. 54(17): p. 429-33.