Bipolar staining is characteristic of -: (A) Yersinia pestis, (B) Proteus mirabilis, (C) Pseudomonas aeruginosa, (D) All of the above
Answer is A. Option a, b, c, d Bipolar staining (safety pin appearance): with both ends densely stained and a clear central area of the bacteria. 1. Yersinia pestis 2. Vibrio parahaemolyticus 3. Calymmatobacterium (Donovania) granulomatis 4. H. Ducreyi 5. Pasteurella multocida 6. Burkholderia species