TB & Outbreaks Week
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Bird Flu
Studies in the area of bird flu reported from Mahidol University
March 10th, 2009
"Outbreaks of H5N1 avian influenza show strong seasonality. It is not clear where the source of virus originates from in each new outbreak season," scientists in Bangkok, Thailand report. "This study sought to understand the nature of viral resurgence in recent outbreak seasons in Thailand, where the epidemic is relatively well controlled. In such a situation, indigenous viruses surviving the inter-outbreak season would have to pass through a bottleneck. In order to look for evidence of the bottleneck effect, viral genome sequences from recent outbreaks in the country were analysed. H5N1 avian influenza viruses were isolated from six outbreaks in the rainy season and...
Source: TB & Outbreaks Week (2009-03-10)
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