| raw hamburger: an interstate common source of human salmonellosis. | an interstate common-source outbreak of salmonellosis was first detected in the united states in september and october, 1975, when a tenfold increase in salmonella newport isolates was noted through routine salmonella surveillance by the colorado department of health. eighteen primary cases with a distinctive antibiotic resistance pattern (tetracycline, streptomycin, and sulfonamides) were evaluated in a case-control study, and illness was found to be associated with eating raw hamburger (p less ... | 1978 | 623088 |