<prompt> 16-year-old boy had a flea bite while working in a wheat grain godown. After 4 days he developed fever and had axillary lymphadenopathy. The stain used for smear preparation is ?Albert stainingZiehl Neelson stainingMcFadyeans stainingWayson staining  <response>: This is a case of plagueWorking in godown rats commonly found Ho flea bite, In patient 5 days, fever and lymphadenopathy. Wayson stain a polychromatic stain-Y. Pestis can be best demonstrated other is Giemsa Bipolar staining or safety pin appearance seen.Albert stain use for C. diptheriae Z-N stain use for M. tuberculosis and other acid fast bacteria Mc Fayden reaction used for B. anthracis 