Salmonella infection: Diagnosis and control

Abstract

Extract

In spite of numerous publications on the salmonellae and their effects on various hosts, few countries can assess accurately the annual toll of human illness or economic losses in. livestock as a result of these infections. Attempts are being made, at both international and national levels, to remedy this deficiency, particularly as food-borne salmonellosis in countries with high standards of living and hygiene is becoming a very real problem. Increasing mass food preparation, inadequate storage facilities or methods, a trend towards eating raw or insufficiently cooked fcods, increasing international trade, and possibly decreasing personal resistance, have all been cited as contributing factors. Epidemiological studies have documented the vulnerability of the young, the elderly and those with intercurrent disease or those living in institutions. As the main source of infection for man is food of animal origin (Anon., 1967a), all aspects of the livestock and food industries can expect increasing surveillance. In this review it is proposed to discuss recent advances in the detection of Salmonella organisms in livestock and their environment, as well as the application of control measures relevant to New Zealand farming and industry.