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

$ P! H3 j. E6 m2 T! [There are several phylogenetic tree construction
  L9 o% P" i" Omethods that can be used to illustrate the spread of disease
& @( H% E  C2 c% x! Nepidemics. One of the methods used is probability-based
maximum likelihood. This paper explains how to identify the
3 `' Q8 j# `: N1 D! [; gspread of the SARS epidemic in the world using the formation of
+ g5 T1 Q' V% e8 n' R. E. V, o* Gphylogenetic trees using the maximum likelihood method. The
output obtained was a description of the spread of SARS virus
0 T" d( k) k- O; Q5 t  r. [* ^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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