This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'One virus particle prevents multiplication of the second virus. This phenomena is - \nSelect and explain. \nA. Viral interference, B. Mutation, C. Supervision, D. Permutation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Interference\n\nIn a mixed or multiple infection of cells, in which infection of a cell by one virus inhibits simultaneous or subsequent infection by another virus is called Interference.\nThe most important mediator of interference is interferon.\nA high multiplicity of infection inhibits production of its own infectious progeny - autointerference\nViral interference has been applied in the field in Controlling poliomyelitis by live attenuated vaccine.', 'role': 'assistant'}]