Earle K. Borman

Laboratory Examinations of Milk Handlers.

BEFORE entering into the discussion of problems associated with the laboratory examination of milk handler specimens, we should fix firmly in our minds those factors associated with the production of milk which operate from time to time to produce milk-borne diseases, together with the epidemiological importance of these infections. There are two important factors upon which the existence of milk-borne disease depends: (1) The presence of such diseases as bovine tuberculosis, Brucella infection, and certain types of mastitis in the dairy herd; and (2) the presence of carriers and cases of infectious disease among milk handlers. Instances of a milk supply becoming contaminated with pathogenic microorganisms by other means have been recorded, but in general these have not been of importance in the history of milk-borne disease. In discussing the problem at hand we are only indirectly concerned with the first factor although the laboratory has played a large part and will undoubtedly continue to play an even larger part in the campaign to eradicate diseases spread in this fashion. Between 1880 and the end of 1933, 1,032 milk-borne outbreaks t of disease traced to human carriers and cases have

The Nature of Brucellosis

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