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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: u4 l6 `' v8 Y: B3 X# }- g: NThere 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
7 d5 ]7 t7 h, F* Umaximum 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
+ @# @1 f- i# m- J- ~output obtained was a description of the spread of SARS virus
* x3 k: v; t( k1 ?& Hwith the selection of tree candidates after performing a heuristic
search of the Stepwise Addition method. The result of the research
9 O2 y' M6 P- `" P3 Q& vshowed that the closest distance to the palm civet is GZ 02/18/03
  v& U  |; p7 s. a4 Q: Hindicating that the initial spread of the SARS epidemic started
from Guangzhou.

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