This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
Interstitial keratitis is caused by all except - 
Select and explain. 
A. TB, B. HSV, C. EBV, D. Peussis
D: Peussis
Answer: D: Peussis 
Explanation: INTERSTITIAL KERATITISInterstitial keratitis denotes an inflammation of thecorneal stroma without primary involvement of theepithelium or endothelium.Causes. Its common causes are:  Congenital syphilis  Tuberculosis  Cogan's syndrome  Acquired syphilis  Trypanosomiasis  Malaria  Leprosy  Sarcoidosis REF:Comprehensive ophthalmology,4th edition,pg no.120