This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
Springcatarrh is which type of hypersensitivity reaction - 
Select and explain. 
A. Type I, B. Type II, C. Type II & III, D. Type IV
A: Type I
Answer: A: Type I 
Explanation: Vernal keratoconjunctivitis or spring catarrh is considered as an atopic disorder. Type I IgE mediated hypersensitivity reaction to pollen grains. Reference : comprehensive ophthalmology A K Khurana, 6 th edition,page no:79 <\p>