Advances in Virus Research, Volume 124in this ongoing seriesseries, highlights new advances in the field, with this new volume presenting interesting chapters on topics such as Emerging and Reemerging Viral Threats to Pregnancy and Nomenclature for vertically transmitted plant. Key Features: Provides the latest information on Virus threats Offers outstanding and original reviews on a range of Virus research topics Serves as an indispensable reference for researchers and students alike