Maximum Likelihood Method on The Construction of Phylogenetic Tree for Ident...

杨利霞

Maximum Likelihood Method on The Construction of

Phylogenetic Tree for Identification the Spreading of

SARS Epidemic

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There are several phylogenetic tree construction
4 r8 B+ Q* l5 ~6 Z$ G5 O% pmethods that can be used to illustrate the spread of disease
epidemics. One of the methods used is probability-based
maximum likelihood. This paper explains how to identify the
spread of the SARS epidemic in the world using the formation of
phylogenetic trees using the maximum likelihood method. The
/ g$ j; A4 `' b  h2 m$ loutput obtained was a description of the spread of SARS virus
with the selection of tree candidates after performing a heuristic
7 h) D' U/ {% j# P' O2 n! ~search of the Stepwise Addition method. The result of the research
  e8 c: {2 w: o6 Bshowed that the closest distance to the palm civet is GZ 02/18/03
indicating that the initial spread of the SARS epidemic started
8 I8 G/ q& \% I& B" P! yfrom Guangzhou.



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