Dogs can get salmonella from eating raw meat or by eating animal feces or manure. Since salmonella is shed in an infected dogs diarrhea, a dog can get salmonella from licking the surfaces where an infected dog has defecated.
Symptoms of salmonella include vomiting, fever and diarrhea. The illness is at its worst the first four to 10 days, and followed by diarrhea that may last more than a month. Treatment includes fluid replacement in mild cases, while more serious cases may require antibiotics.
Salmonella is a zoonotic disease, which means it can be passed to humans. Care should be taken when cleaning up feces from infected dogs by wearing gloves and using antibacterial agents to disinfect the areas where there is fecal matter.