Salmonella infection may be caused by different species of Salmonella bacteria.

The most common Salmonella species that cause Salmonella infection include:

• Salmonella typhi:
• Sources include undercooked meats contaminated food
• Salmonella paratyphi:
• Sources include undercooked meats contaminated food
• Salmonella enteritidis:
• Sources include undercooked eggs

Less common sources of Salmonella infection include:

• Dogs
• Cats
• Pigs ear dog treats
• Reptiles:
• Turtles
• Lizards
• Iguanas