viruses

Oncogenic Viruses

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Oncogenic Viruses

Oncogenic Viruses Viruses are the intracellular pathogens that reproduce only in the living cell and manipulate the cellular machinery to produce more viruses. Viral replications can affect cellular genes of the host in multiple cancerous ways. An oncovirus is a virus that can cause cancer. Viruses account for about 20% of total human cancer cases. Although many viruses can cause … Read more Oncogenic Viruses

How viruses cause disease?

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How viruses cause disease

Viruses gain access to the host through skin and mucous membranes, and via the respiratory, gastrointestinal, and genital tracts. Their virulence or lack of it may be determined by very small mutations in the genome. Viral infection of cells may result in lysis, fusion and syncytium formation, the appearance of inclusion bodies, or, in some … Read more How viruses cause disease?