What is the usual mode of infection from Salmonella?

The usual mode of infection from Salmonella is through the ingestion of contaminated food. Salmonella bacteria are commonly found in the intestinal tracts of animals, particularly poultry, livestock, and reptiles. When food that has been contaminated with feces from infected animals is consumed, such as undercooked eggs, meat, or dairy products, the bacteria can enter the human digestive system, leading to infection.

Understanding this method of transmission highlights the importance of proper food handling, cooking, and storage practices to prevent Salmonella outbreaks. It also emphasizes the need for public awareness regarding the importance of food safety, such as washing hands and surfaces after contact with raw foods and ensuring that foods are cooked to safe temperatures.

Modes like inhalation of contaminated air and absorption through the skin are not associated with Salmonella infections, whereas contact with contaminated surfaces can lead to transmission of various pathogens but is not the most common route for Salmonella specifically.