The emerging infectious human viral diseases have been a prime concern for
public health since the last decade. Various new viruses or virulent strains of old
viruses have emerged during this period. Appropriate knowledge of the viral
pathogenesis is required to understand their emergence and possible therapies. Various
factors are involved in the emergence of viruses and new human diseases. Some of
these human diseases are zoonosis. Zoonosis can be defined as human diseases caused
by animal pathogens, which that are transmitted to humans. The WHO has been
continuously updating the prioritizing list for various infectious, and emerging viruses.
In this chapter, we discussed some important emergent viral pathogens, such as Ebola
virus, Crimean-Congo Haemorrhagic Fever virus, and Marburg virus, Hanta, Hendra,
and SARS. Detailed understanding of the emergence, the modes of transmission and
pathogenesis, and possible treatment plans are necessary to check the invasion and
outbreak caused by these viruses.
Keywords: Emerging viral diseases, Crimean-Congo Haemorrhagic Fever virus,
Ebola, Hanta, Hendra, SARS.
