Mc fayden reaction seen with which organism ?
Ans. is `d' i.e., Bacillus antracis Mc Fadvean's reaction When blood films containing anthrax bacilli are stained with polychrome methylene blue for a few seconds and examined under microscope, an amorphous purplish material is noticed around bacilli. This represents the capsular material and is characteristic of the anthrax bacillus.
Clostridium perfringens
Clostridium botulinum
Bacillus cereus
Bacillus anthracis