Abstract

Traditional rabies vaccines given preventatively or after exposure to the virus induce cluster of differentiation 4+ (CD4+) T cell responses that promote the induction of long-lived memory B cells and neutralising antibody-secreting plasma cells. The high cost of rabies vaccines, combined with the complexity of immunisation protocols, is partially to blame for their under-use in exposed individuals and prevents the vaccines' widespread use in preventative childhood immunisation programmes in areas where rabies remains common. Novel vaccines or vaccine adjuvants that reduce the cost of rabies vaccination and afford protective immunity, as well as sustained immunological memory, after a single dose are being developed and may very well reduce the human death toll of rabies.

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