emysemys said:How do you know it came from your tortoise?
Sources of infection
Infected food
Poor kitchen hygiene (could have been a restaurant)
Excretions from either sick or infected but apparently clinically healthy people and animals (especially endangered are caregivers and animals);
Polluted surface water and standing water (such as in shower hoses or unused water dispensers);
Unhygienically thawed fowl (the meltwater contains many bacteria);
An association with reptiles (pet tortoises, snakes, iguanas and frogs, but primarily aquatic turtles)
Salmonella bacteria can survive several weeks in a dry environment and several months in water thus, they are frequently found in polluted water, contamination from the excrement of carrier animals being particularly important. Aquatic vertebrates, notably birds and reptiles, are important vectors of Salmonella. Poultry, cattle, and sheep frequently being agents of contamination, salmonella can be found in food, especially in milk, meats and sometimes in eggs which have cracks. Also on money.