This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Keratomalacia is seen in which of the following infections- 
Select and explain. 
A. Chicken pox, B. Mumps, C. Diarrhoea, D. Measles
D: Measles
Answer: D: Measles 
Explanation: All cases of severe measles and all cases of measles in ares of high fatality rates should be treated with vitamin A , as many children may develop acute deficiency of vitamin A, which may lead to keratomalacia and blindness from corneal scarring. Reference : Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 158