<prompt> Best specimen for rabies diagnosis in living person:Corneal smearCSFBiopsy of hair follicle of neckBrain biopsy  <response>: 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. 