**Author details**

Neli Vilhelmova-Ilieva, Angel S. Galabov\* and Milka Mileva Bulgarian Academy of Sciences, The Stephan Angeloff Institute of Microbiology, Sofia, Bulgaria

\*Address all correspondence to: galabov@microbio.bas.bg

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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#### *Tannins as Antiviral Agents DOI: http://dx.doi.org/10.5772/intechopen.86490*
