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

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: h* I6 j+ g. g$ o+ \( N7 N* xThere are several phylogenetic tree construction
methods that can be used to illustrate the spread of disease
" Y2 e. I; l9 O4 M4 q, [9 q; r1 Zepidemics. One of the methods used is probability-based
maximum likelihood. This paper explains how to identify the
& f* g& t3 C* E7 S2 Cspread of the SARS epidemic in the world using the formation of
, s" K$ i6 ?1 }& S  qphylogenetic trees using the maximum likelihood method. The
9 S7 B- P. A4 l6 v% j1 l; @$ P' routput 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
showed that the closest distance to the palm civet is GZ 02/18/03
indicating that the initial spread of the SARS epidemic started
from Guangzhou.
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