This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Rotavirus infection is diagnosed by the presence of - 
Select and explain. 
A. Antigen in stool by ELISA, B. Virus in stool, C. Antigen in blood, D. AB
D: AB
Answer: D: AB 
Explanation: daignisis of rota virus by drminstration if virus instool&antigenic group by ELISA REF:ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.561