Brucella melitensis, the species of Brucella with usual source in goat and sheep, is now known to occur endemically in Iowa. Brucella abortus and Brucella suis, etiologic agents for brucellosis in cattle and hogs respectively, have been recognized and observed in Iowa since 1927. On the other hand, brucellosis of man caused by Brucella melitensis was for years considered an exotic type of disease in this area. The present report, based on laboratory findings and epidemiologic investigations, presents data referable to 20 cases of brucellosis diagnosed in Iowa during the past two years and found to be caused by the caprine strain of brucella, Br. melitensis.
ISOLATION OF BRUCELLA IN IOWA
During the period July 1, 1927 to June 21, 1945 brucella strains totaling 339 were recovered from human sources in the State Hygienic Laboratory by or under the direct supervision of one of us (I. H. B.). Of these
JORDAN CF, BORTS IH. OCCURRENCE OF BRUCELLA MELITENSIS IN IOWA. JAMA. 1946;130(2):72–75. doi:10.1001/jama.1946.02870020016005