Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 22, Number 12—December 2016
Etymologia

Etymologia: Usutu Virus

Cite This Article

Usutu [oo-sooʹtoo] Virus

Figure

Thumbnail of Immunohistochemical staining for Usutu virus antigen in a Purkinje cell of the cerebellum of a song thrush that died of encephalitis. Original magnification ×400.

Figure. Immunohistochemical staining for Usutu virus antigen in a Purkinje cell of the cerebellum of a song thrush that died of encephalitis. Original magnification ×400.

Usutu virus (Figure), named for the Usutu River in Swaziland, is a mosquitoborne flavivirus closely related to Japanese encephalitis virus, West Nile virus, Murray Valley encephalitis virus, and St. Louis encephalitis virus. Usutu virus was first isolated in 1959 from Culex neavei mosquitoes in South Africa. The first recognized infection in a human was in an African man with fever and rash in 1959 but was not reported until 1981.

In 2001, Usutu virus emerged in Europe, when it was identified as the etiologic agent of bird—mainly blackbird—mortality. Retrospective analysis of archived tissue samples from wild bird deaths in the Tuscany region of Italy in 1996, however, revealed an earlier introduction of the virus to Europe. It was not thought to be associated with severe or fatal disease in humans until a neuroinvasive infection was reported to have occurred in an Italian woman in 2009.

Top

References

  1. Ashraf  U, Ye  J, Ruan  X, Wan  S, Zhu  B, Cao  S. Usutu virus: an emerging flavivirus in Europe. Viruses. 2015;7:21938.DOIPubMed
  2. Pecorari  M, Longo  G, Gennari  W, Grottola  A, Sabbatini  A, Tagliazucchi  S, et al. First human case of Usutu virus neuroinvasive infection, Italy, August-September 2009. Euro Surveill. 2009;14:19446.PubMed
  3. Weissenböck  H, Bakonyi  T, Rossi  G, Mani  P, Nowotny  N. Usutu virus, Italy, 1996. Emerg Infect Dis. 2013;19:2747.DOIPubMed
  4. Weissenböck  H, Kolodziejek  J, Url  A, Lussy  H, Rebel-Bauder  B, Nowotny  N. Emergence of Usutu virus, an African mosquito-borne flavivirus of the Japanese encephalitis virus group, central Europe. Emerg Infect Dis. 2002;8:6526.DOIPubMed

Top

Figure

Top

Cite This Article

DOI: 10.3201/eid2212.et2212

Related Links

Top

Table of Contents – Volume 22, Number 12—December 2016

Page created: November 18, 2016
Page updated: November 18, 2016
Page reviewed: November 18, 2016
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external