Spot Tests of Selected Organisms - Lab Information by CDCdocs

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									                                           TABLE 4
                          SPOT TESTS OF SELECTED ORGANISMS1


                      Gram-stain        Growth2
    Organism          morphology                              Motility     Oxidase      Catalase      Indole     Urea
                                        SBA     CA    MAC
                        gram negative
 Acinetobacter              broad      +      +      +           -            -             +            - -V
                        coccobacillus
 spp.                    (1.0 x 2.0 ·)
 Actinobacillus gram negative
 spp.                   coccobacillus  +      +     V            -      +V             +V                - +V
                         (0.4 x 1.0 ·)
 Bacillus               gram positive  +      +      -           -      +V                  +            -         -
 anthracis                broad rod
                           (1 x 4 ·)
 Bordetella             gram negative  +      +      +          +             +             +            -         +
 bronchiseptica coccobacillus
                         (0.4 x 1.2 ·)
 Brucella spp.          gram negative  +      +     V            -            +             +            -         +
                        coccobacillus
                         (0.6 x 0.8 ·)
 Francisella            gram negative  -      +      -           -            -             +            -         -
 tularensis             coccobacillus
                         (0.2 x 0.7 ·)
 Haemophilus            gram negative
 aphrophilus            coccobacillus/ +      + -V               -       -V                 -            -         -
                             rods
                         (0.5 x 1.5 ·)
 Yersinia pestis gram negative         +      +      +           -            -             +            -         -
                             rods
                         (0.7 x 2.0 ·)
1. (+) = 90% positive; (-) = 10% positive; (+V)= most species/strains positive; (-V )= most species/strains negative;
   V, variable = 11 - 89% positive
2. SBA = Sheep Blood Agar; CA = Chocolate Agar; MAC = MacConkey Agar

								
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