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
[{'content': 'A 15-year-old girl was admitted to the infectious disease hospital with a provisional diagnosis of rabies. The most suitable clinical sample that can confirm the antemoem diagnosis is - \nSelect and explain. \nA. Serum for anti-rabies IgG antibody, B. Corneal impression smear for immunofluorescence stain, C. CSF sample for viral culture, D. Giemsa stain on smear prepared from salivary secretions', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Specimen tested in rabies are corneal smears and skin biopsy in ante moem analyzed by immunoflurescent REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9EDITION PGNO.534', 'role': 'assistant'}]