True about Rabies virus is -
Rabies is diagnosed by immunofluorescence
Rabies causes life long immunity
Rabies has various strains of viruses
Rabies vaccine is always live attenuated
The method most commonly used for diagnosis is the administration of rabies virus antigen by immunofluorescence. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-533
Virology