For Month of July, 1963During August, reports of 2,054 human saltnonellae isolations, representing 65 serotypes, were submitted from fifty States and fifty-four reporting centers (Table I). A total of 477 salmonellae isolations of 49 different serotypes were recovered from nonhuman sources during the same period (Table II). The average weekly totals for humans for June and July are\u2022analogous.Included in this month's report is a compendium of the Salmonella derby problem. Among others, the Reports from the States contain an intricate epidemiological investigation of Salmonella mikawasima in a Richard's vine snake, two reports of salmonellosis traced to house pets, a case of Salmonella new brunswick meningitis, and a large epidemic of Sa...