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

杨利霞

Maximum Likelihood Method on The Construction of

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Phylogenetic Tree for Identification the Spreading of

SARS Epidemic

( Y* V2 _7 ^4 B4 e# \0 ?There are several phylogenetic tree construction
1 G1 I5 l* g( }$ Z2 o6 }" imethods 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
+ @8 x9 X. ^6 j# q: Y) m/ rphylogenetic trees using the maximum likelihood method. The
output obtained was a description of the spread of SARS virus
with the selection of tree candidates after performing a heuristic
search of the Stepwise Addition method. The result of the research
- W5 ^( y6 k% P: R/ t* ^+ D! V) ~showed that the closest distance to the palm civet is GZ 02/18/03
+ O- O" J# x8 O, i# |indicating that the initial spread of the SARS epidemic started
0 V/ u9 Z8 _0 a- Gfrom Guangzhou.
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