A 22-year-old man, a refugee from Bosnia, developed serious pancreatitis complicated with pseudocyst and pancreatic abscess. Staphylococcus aureus was isolated from pus and blood cultures. On day 12 of illness, parotitis and epididymitis appeared with elevated specific IgG antibody levels to the mumps virus. Surgical drainage and antibiotics were necessary for complete recovery. According to our observations, a significant number of hospitalized refugees during the war in Croatia had impaired host defences probably due to prolonged stress. A negative influence of these circumstances and/or the virulence of the agent should be considered in our patient as well.