Emerging Infectious Disease ISSN: 1080-6059
Volume 15, Number 1—January 2009
Letter
Avian Influenza Virus (H5N1) in Human, Laos
Appendix Figure

Appendix Figure. Phylogenetic analysis of avian influenza viruses (H5N1). A) hemagglutinin genes and B) polymerase A genes. Pseudosampling = 1,000. Known genotype V viruses are indicated in red, and genotype Z viruses are indicated in blue. Numbers on the right in braces indicate clades and subclades. Scale bars indicate genetic distances between sequences of different taxa. HK, Hong Kong.
Lessons from the History of Quarantine, from Plague to Influenza A
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