HIV-1 Subtype distribution in morocco based on national sentinel surveillance data 2004-2005.
AIDS Res Ther
; 9(1): 5, 2012 Feb 14.
Article
em En
| MEDLINE
| ID: mdl-22333070
ABSTRACT
BACKGROUND:
Little is known about HIV-1 subtype distribution in Morocco. Some data suggest an emergence of new HIV subtypes. We conducted phylogenetic analysis on a nationally representative sample of 60 HIV-1 viral specimens collected during 2004-2005 through the Morocco national HIV sentinel surveillance survey.RESULTS:
While subtype B is still the most prevalent, 23.3% of samples represented non-B subtypes, the majority of which were classified as CRF02_AG (15%). Molecular clock analysis confirmed that the initial introduction of HIV-1B in Morocco probably came from Europe in the early 1980s. In contrast, the CRF02_AG strain appeared to be introduced from sub-Saharan Africa in two separate events in the 1990s.CONCLUSIONS:
Subtype CRF02_AG has been emerging in Morocco since the 1990s. More information about the factors introducing HIV subtype-specific transmission will inform the prevention strategy in the region.
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Base de dados:
MEDLINE
Tipo de estudo:
Screening_studies
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article