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DNA viruses

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DNA viruses Papovaviruses Human Papovaviridae Papillomavirus - warts Polyomavirus BK virus renal disease JC virus progressive multifocal leukoencephalopathy ... – PowerPoint PPT presentation

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Title: DNA viruses


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
Human herpesviruses
  • Alphaherpesvirinae
  • Herpes simplex type 1
  • Herpes simplex type 2
  • Varicella zoster virus
  • Betaherpesvirinae
  • Cytomegalovirus
  • Human Herpes virus 6,7
  • Gammaherpesvirinae
  • Epstein-Barr virus
  • Kaposis 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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