Journal
VIROLOGY
Volume 378, Issue 2, Pages 363-370Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.virol.2008.06.010
Keywords
avian influenza; Argentina; kelp gull; waterfowl; molecular characterization; evolution; South America; H13N9
Categories
Funding
- NIAID NIH HHS [R01 AI052155, AI052155, R01 AI052155-01A1] Funding Source: Medline
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Avian influenza (AI) viruses have been sporadically isolated ill South America. The most recent reports are from an outbreak it) commercial poultry in Chile in 2002 and its Putative ancestor from a wild bird in Bolivia in 2001. Extensive Surveillance in wild birds was carried Out in Argentina during 2006-2007. Using RRT-PCR, 12 AI positive detections were made from cloacal swabs. One of those positive samples yielded ail AI Virus isolated from a wild kelp gull (Larus dominicanus) Captured in the South Atlantic coastline of Argentina. Further characterization by nucleotide sequencing reveals that it belongs to the H13N9 subtype. Phylogenetic analysis of the 8 viral genes suggests that the 6 internal genes are related to the isolates from Chile and Bolivia, The analysis also indicates that a cluster of phylogenetically related AI Viruses from South America may have evolved independently, with minimal gene exchange, from influenza viruses in other latitudes. The data produced from our investigations are Valuable contributions to the Study of AI Viruses in South America. C 2008 Elsevier Inc. All rights reserved.
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