This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology Pa-2 (RNA Virus Pa-1,2 & Miscellaneous Viruses), Subject name: Microbiology
[{'content': 'Best specimen for rabies diagnosis in living person: \nSelect and explain. \nA. Corneal smear, B. CSF, C. Biopsy of hair follicle of neck, D. Brain biopsy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: o Biopsy of hair follicle of base of neck is more sensitive and considered as the best sample for direct florescent antibody (DFA) test done for antemoem diagnosis of Rabies. o Corneal smears, biopsy from hair follicle from the nape of the neck, and saliva are the used specimens for antemoem diagnosis of rabies. o Corneal impression smear is only 30% sensitive, mainly it is positive in late stage. o The brain biopsy of the dead animal is the specimen of choice for postmoem diagnosis of rabies.', 'role': 'assistant'}]