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

) }: F5 ~% r( y8 X- Z; yThere are several phylogenetic tree construction
methods that can be used to illustrate the spread of disease
, U# Z1 I0 L# U) f1 u# {+ _" @epidemics. One of the methods used is probability-based
# s# W& x9 C  i- u; a! dmaximum likelihood. This paper explains how to identify the
- I# J0 p" P. s9 [. g: espread of the SARS epidemic in the world using the formation of
phylogenetic trees using the maximum likelihood method. The
output obtained was a description of the spread of SARS virus
! y5 g7 t) @9 j2 iwith 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
$ {- J9 n/ E: mfrom Guangzhou.


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