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Virologic surveillance for wild-type rubella viruses in the Americas.

Icenogle, Joseph P; Siqueira, Marilda M; Abernathy, Emily S; Lemos, Xenia R; Fasce, Rodrigo A; Torres, Graciela; Reef, Susan E.
J Infect Dis; 204 Suppl 2: S647-51, 2011 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-21954261
The goal of eliminating rubella from the Americas by 2010 was established in 2003. Subsequently, a systematic nomenclature for wild-type rubella viruses (wtRVs) was established, wtRVs circulating in the region were catalogued, and importations of wtRVs into a number of countries were documented. The geographic distribution of wtRVs of various genotypes in the Americas, interpreted in the context of the global distribution of these viruses, contributed to the documentation of rubella elimination from some countries. Data from virologic surveillance also contributed to the conclusion that viruses of genotype 2B began circulating endemically in the Americas during 2006-2007. Viruses of one genotype (1C), which are restricted to the Americas, will likely disappear completely from the world as they are eliminated from the Americas. Efforts to expand virologic surveillance for wtRVs in the Americas will also provide additional data aiding the elimination of rubella from the region. For example, identification of vaccine virus in specimens from rash and fever cases found during elimination can identify such cases as vaccine associated.