The answer to this question would be: antibody
There are 4 types of hypersensitivity. In type II hypersensitivity, the reaction depends on the antibody. Some of the body cells surfaces were similar to the pathogens that the white blood cells trying to fight. This causing the body also attack the body cells too. It is also called cytotoxic hypersensitivity.
In mismatch transfusion, the receiver recognizes transfused blood cell as foreign material so it was making antibody to fight it.
        
             
        
        
        
Biotic= living like trees, animals,
        
             
        
        
        
<span>coccus—can cause MRSA and has a round shape</span>
Methicillin-resistant Staphylococcus aureus
It poses a serial health to both patient and physician who is a health care professional because this particular type of baterium can be both airborne and bloodborne. 
This particular bacterium is resistant to antibiotic because of evolutionary process that prevails among the animal kindgom. These evolutionary process made these baterium insusceptible to antibiotics because of its change in DNA compositions.