Salmonella

This is what the Canada Food Inspection Agency has to say about Salmonella:

Food contaminated with Salmonella may not look or smell spoiled. Consumption of food contaminated with these bacteria may cause salmonellosis, a food borne illness. In young children, the elderly and people with weakened immune systems, salmonellosis may cause serious and sometimes deadly infections. In otherwise healthy people, salmonellosis may cause short-term symptoms such as high fever, severe headache, vomiting, nausea, abdominal pain and diarrhoea. Long-term complications may include severe arthritis.