Pseudomembrane over tonsil and pharynx is caused by
Gram positive bacili
Gram negative bacili
SS RNA virus
Catalase negative cocci
Pseudomembrane is formed in diphtheria, which is caused by Corynebacterium diphtheria, which is a gram-positive bacillus Ref: Harshmohan textbook of pathology; 7th edition
Pharynx