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

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SARS Epidemic

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There are several phylogenetic tree construction
8 p/ T2 f, d% C- W" L+ \: _3 Cmethods that can be used to illustrate the spread of disease
epidemics. One of the methods used is probability-based
  E4 g6 f8 ^' ]0 @' |maximum likelihood. This paper explains how to identify the
spread of the SARS epidemic in the world using the formation of
! A) l1 |7 U2 V: Hphylogenetic trees using the maximum likelihood method. The
! U1 \( A- Z+ x8 routput obtained was a description of the spread of SARS virus
& I+ P, }3 {& f5 N  I" Ywith the selection of tree candidates after performing a heuristic
search of the Stepwise Addition method. The result of the research
showed that the closest distance to the palm civet is GZ 02/18/03
  ]2 `& _- W' cindicating that the initial spread of the SARS epidemic started
from Guangzhou.

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