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Canine Distemper (CD) is a contagious, incurable, often fatal, multi-systemic viral disease that affects the respiratory, gastrointestinal, and central nervous systems. CD , caused by CD virus, is worldwide and has a wide host range such as canidae family (dog, fox ...etc). In this book; molecular and virological characterization of CDV Asian isolates were carried out, which introduced new biological and molecular aspects to these viruses. Such as; the ability of some isolates to propagate in Hamster cell lines, the role of fusion (F)gene or the presence of unidentified receptors other than well-known one can be used for the virus cell-interaction, the molecular properties of adapted viruses as well as the wild one and its role in virus virulence, the impact of F gene in lineages classification as hemagglutinin (H)gene.

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Dr. Serageldeen Sultan, a lecturer of virology, Faculty of Vet. Med. South Valley Uni, received his PhD degree in virology at Yamaguchi Uni, (2010). He is doing research on RNA viruses; CDV, NDV and AIV, also he is expert in the field of molecular biology and runs many techniques such as RRT-PCR,DNA sequencing, gene cloning and expression

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