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A species of Babesia which infects raccoons, Procyon lotor, is described and named Babesia lotori. Twelve of 14 raccoons captured from five counties in Connecticut developed parasitemia after splenectomy. Preoperative levels were subpatent or less than 1%. Parasitemia peaked anywhere from less than 5% to 36.6% in splenectomized raccoons, and all but one(More)
The analysis of fine structures by electron microscopic examination of ultrathin tissue sections permitted a diagnosis of toxoplasmosis in a fatal human case that would have gone undiagnosed by conventional methods. Examination of histologically prepared sections revealed organisms that were morphologically nondiagnostic. Fine-structural analysis showed the(More)
A micro enzyme-linked immunosorbent assay (ELISA) for antibodies to Trypanosoma cruzi was evaluated and the results obtained by ELISA were compared with those obtained by the complement fixation test (CF) and indirect fluorescent antibody test (IFA). Fifty sera collected from residents of the southeastern United States all had reciprocal ELISA titers less(More)
In October, 1977, an outbreak of toxoplasmosis occurred in patrons of a riding stable in Atlanta, Georgia; 37 became ill with toxoplasmosis or had serologic evidence by indirect fluorescent-antibody test of acute infection with Toxoplasma gondii (titer greater than or equal to 1:4096 or a positive fluorescent-antibody test for toxoplasma antibodies).(More)
An indirect immunofluorescent antibody test was used to detect antibody to Babesia microti in human sera. Nine patients from Nantucket Island, Massachusetts infected with B. microti had serum titers greater than or equal to 1,024. Of 84 control sera from New York City residents, 246 sera from patients with possible exposure to ticks, and 36 sera from(More)