jueves, 18 de enero de 2018

Etymologia: Parvovirus - Volume 24, Number 2—February 2018 - Emerging Infectious Disease journal - CDC

Etymologia: Parvovirus - Volume 24, Number 2—February 2018 - Emerging Infectious Disease journal - CDC





Volume 24, Number 2—February 2018

Etymologia

Etymologia: Parvovirus

Eduardo K.U.N. FonsecaComments to Author 

Parvovirus [pahr′ vo-vi′′res]

Thumbnail of This electron micrograph depicts a number of parvovirus H-1 virions of the Parvoviridae family of DNA viruses. Photo CDC/ R. Regnery; E. L. Palmer, 1981.
Figure. This electron micrograph depicts a number of parvovirus H-1 virions of the Parvoviridae family of DNA viruses. Photo CDC/ R. Regnery; E. L. Palmer, 1981.
Viruses of the family Parvoviridae (Latin parvum [meaning small or tiny]) are among the smallest viruses described, 18–28 nm in diameter (Figure). There are 2 subfamilies of the family ParvoviridaeParvovirinae and Densovirina (Latin denso [thick or compact]). Parvovirinae may infect humans, but Densovirina infect only arthropods (1). Structurally, these viruses are nonenveloped, icosahedral viruses that contain a single-stranded linear DNA genome (2,3).
The small size of these viruses might account for their late discovery. In 1974, the first pathogenic human parvovirus was discovered and named B19 from the coding of a serum sample, number 19 in panel B, that gave anomalous results during testing for hepatitis B (4). Although human B19 infections are more often asymptomatic or lead to mild rash illnesses and arthralgias, they can also cause severe anemia in fetuses and in persons with underlying hemoglobinopathies (5).

References

  1. Tattersall PCotmore SF. Parvoviruses. In: Topley WW, Wilson GS, editors. Topley & Wilson’s microbiology and microbial infections. Vol. 1, 10th ed. London: Hodder Arnold; 2005. p. 407−39.
  2. Pattison JRB19 virus—a pathogenic human parvovirus. Blood Rev1987;1:5864DOIPubMed
  3. Servey JTReamy BVHodge JClinical presentations of parvovirus B19 infection. Am Fam Physician2007;75:3736.PubMed
  4. Cossart YEField AMCant BWiddows DParvovirus-like particles in human sera. Lancet1975;1:723DOIPubMed
  5. Young NSBrown KEParvovirus B19. N Engl J Med2004;350:58697DOIPubMed

Figure

Cite This Article

DOI: 10.3201/eid2402.ET2402

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