| predominance of ehrlichia ewingii in missouri dogs. | to investigate the species distribution of ehrlichia present in missouri dogs, we tested 78 dogs suspected of having acute ehrlichiosis and 10 healthy dogs. blood from each dog was screened with a broad-range 16s rrna gene pcr assay that detects known pathogenic species of ehrlichia and anaplasma: the species was determined by using species-specific pcr assays and nucleotide sequencing. ehrlichia antibody testing was performed by using an indirect immunofluorescence assay with ehrlichia chaffeen ... | 2003 | 14532192 |