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

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SARS Epidemic

0 N4 Q/ X* I9 E! [There 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
0 T' K" E! M& j. Y% c* imaximum likelihood. This paper explains how to identify the
spread of the SARS epidemic in the world using the formation of
9 D/ N) F  ~  K. E2 F2 `7 @5 P5 M* b0 Aphylogenetic trees using the maximum likelihood method. The
6 z% n: Z# b% Y# p$ A8 ^output obtained was a description of the spread of SARS virus
& e' a: H' Z, N; O# g+ t- [# G$ Dwith the selection of tree candidates after performing a heuristic
search of the Stepwise Addition method. The result of the research
7 W$ v" b- n* t% oshowed that the closest distance to the palm civet is GZ 02/18/03
& d$ ]: l0 \2 M. g5 |7 T4 z1 Bindicating that the initial spread of the SARS epidemic started
7 d- ~& g# Z5 z/ L" m: {from Guangzhou.


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