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

There are several phylogenetic tree construction
methods that can be used to illustrate the spread of disease
" P" n5 o" f, m6 F  i, k' F) ~epidemics. One of the methods used is probability-based
maximum likelihood. This paper explains how to identify the
" t. v) U# v: S( |. @spread of the SARS epidemic in the world using the formation of
) y. h) d, J' y) Kphylogenetic trees using the maximum likelihood method. The
! |% e' |2 J7 Q" Joutput 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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