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DNA viruses

DNA viruses. Papovaviruses. Human Papovaviridae Papillomavirus - warts Polyomavirus BK virus – renal disease JC virus – progressive multifocal leukoencephalopathy. Parvoviruses. The parvoviridae are the smallest of the DNA viruses.

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DNA viruses

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  1. DNA viruses

  2. Papovaviruses • Human Papovaviridae • Papillomavirus - warts • Polyomavirus • BK virus – renal disease • JC virus – progressive multifocal leukoencephalopathy

  3. Parvoviruses • The parvoviridae are the smallest of the DNA viruses. • Only one member of the Parvoviridae, B19 is known to cause human disaese – erythema infectiosum (fifth disease), a common childhood exanthem.

  4. Adenoviruses • Adenoviruses were first isolated in 1953 in a human adenoid cell culture. • Since then, approximatelly 100 serotypes, at 47 of which infect humans, have been recognized.

  5. Adenovirus infections in human • Adenoviruses infect epithelial cells of the pharynx, conjuctiva, small intestine, and occasionally other organ systems. • They usually do not spread beyond the regional lymph nodes.

  6. Adenovirus infections in humans • Respiratory diseases • acute febrile pharyngitis • pharyngoconjuctival fever • acute respiratory disease • pneumonia • Eye infections • Gastrointestinal disease • Other diseases • acute hemorrhagis cystitis in children • cervical lessions • urethritis

  7. Humanherpesviruses • Alphaherpesvirinae • Herpes simplex type 1 • Herpes simplex type 2 • Varicella zoster virus • Betaherpesvirinae • Cytomegalovirus • Human Herpes virus 6,7 • Gammaherpesvirinae • Epstein-Barr virus • Kaposi´s sarcoma-related virus

  8. Poxviruses • Poxviruses are the largest and most complex of viruses. • Infections with the most poxviruses are characterized by a rash, although lesions induced by some members of the family are markedly proliferative.

  9. Poxviruses • Poxviruses include the human viruses variolla (smallpox) and molluscum contagiosum poxvirus.

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