Differential diagnosis of diphtheria are :
-oral candidiasis
-streptococcal pharyngitis
-infectious mononucleosis
-adenovirus
-herpes simplex virus
-myocarditis
-myasthenia gravis
-Guillain Barre syndrome
-botulism
-necrotizing gingivostomatitis
-arcanobacterium hemolyticum pharyngitis
-oral candidiasis
-streptococcal pharyngitis
-infectious mononucleosis
-adenovirus
-herpes simplex virus
-myocarditis
-myasthenia gravis
-Guillain Barre syndrome
-botulism
-necrotizing gingivostomatitis
-arcanobacterium hemolyticum pharyngitis