Use "Go Back" on your Browser to return to previous page

Picture from CDC Website
Direct fluorescent antibody test
Positive (left) and negative (right) tests. The rabies antibody used for the dFA test is primarily directed against the nucleoprotein (antigen) of the virus. Rabies virus replicates in the cytoplasm of cells, and infected cells may contain large round or oval inclusions containing collections of nucleoprotein (N) or smaller collections of antigen that appear as dust-like fluorescent particles if stained by the dFA procedure. [CDC Website]