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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: P0 d; B1 }6 z% ^. q8 VThere are several phylogenetic tree construction
methods 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
4 \. m0 z7 X& Y6 w* ]* G% Moutput obtained was a description of the spread of SARS virus
( n; v% [2 `  Z) ?1 V& xwith the selection of tree candidates after performing a heuristic
$ }8 ~' h$ ?( {9 w* S; vsearch of the Stepwise Addition method. The result of the research
showed that the closest distance to the palm civet is GZ 02/18/03
4 A: {$ R3 g2 t8 Q/ |indicating that the initial spread of the SARS epidemic started
from Guangzhou.
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