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Rabies DNA Vaccines: Current Status and Future

Author(s): Shampur Narayan Madhusudana | Anita Desai | Padinjaremattathil Thankappan Ullas

Journal: Advances in Molecular Imaging
ISSN 2161-6728

Volume: 02;
Issue: 01;
Start page: 36;
Date: 2012;
Original page

Keywords: Rabies | Plasmid | DNA Vaccine | Glycoprotein | Prophylaxis

Rabies continues to be a significant cause of human and animal mortality, despite the availability of safe and effective prophylactics. Apart from limited access, the cost and complex schedules of rabies biologics often impact on the success of post-exposure prophylaxis in humans in the endemic countries. Mass vaccination of dogs, critical in rabies control, often fails to achieve its goal in rabies-endemic countries due to logistic, animal and vaccine-related issues. DNA vaccination has been proposed as a cheaper and efficient strategy for rabies prophylaxis, and its feasibility has been demonstrated in a number of animal models including companion animals, since 1994. Despite the proven efficacy, the technology suffers from a few drawbacks that limit its large-scale application, such as delayed and weaker immune responses in larger animals. Recent advances in the field of vector design and delivery hold promise for enhancement of rabies DNA vaccine efficacy. The present article provides an overview of developments in the field of DNA rabies vaccination and its future prospects.

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