Malignant cells lose many of their normal characteristics and become able to spread and grow in other parts of the body. This is cancer. For example, cervical warts sometimes become malignant, leading to cervical cancer. Other examples of viruses that cause tumors are Epstein-Barr virus and Human T Cell Leukemia virus. Entry into host cells and primary replication Spread though the host and secondary replication at new sites in the body.
Viremia is the presence of virus in the blood.
Inflammation, and host defense responses occur. The host immune response causes inflammation at sites of infection, causing further damage. Host immune responses may vanquish the infection, killing all viruses, or the infection may become persistent or latent. Alternatively, the viral infection may vanquish the host, causing death.