Drug-resistant Salmonella bacteria. 3D computer illustration of drug-resistant non-typhoidal Salmonella sp. bacteria, showing their flagella (long filaments) and fimbriae (hair-like). Non-typhoidal Salmonella usually causes diarrhoea, fever, and abdominal cramps. Some infections spread to the blood and can have life-threatening complications. These bacteria are showing resistance to multiple classes of drugs including ceftriaxone and ciprofloxacin.