The Yellow Fever Virus Automated Phylogenetic Typing Tool: introduction.

Yellow fever causes 200,000 infections and 30,000 deaths every year, with nearly 90% of these occurring in Africa. Nearly a billion people live in an area of the world where the disease is common. It is common in tropical areas of South America and Africa, but not in Asia.

The definition of a Yellow Fever genotype is based on the identification of well defined phylogenetic clusters that its origin has been associated to a given geographic region.

We have carefully analysed all of YFV whole genomes and reviewed in the literature in order to represent the diversity of each phylotype. In addition, we performed extensive testing to be sure that our reference strains accurately classify other sequences.

  • We include 4 phylotypes
  • Phylotype 1 includes sequences from South American I
  • Phylotype 2 includes sequences from South American II
  • Phylotype 3 includes sequences from East African
  • Phylotype 4 includes sequences from West African

Yellow Fever Virus phylogenetic tree
Fig. 1. yellow fever virus maximum likelihood phylogenetic tree of (A) WGS and (B) E gene

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