Molecular epidemiology and phylogenetic analysis of Dengue virus type-1 and 2 isolated in Malaysia
Pakistan Journal of Medical Sciences. 2015; 31 (3): 615-620
in English
| IMEMR
| ID: emr-192074
ABSTRACT
Objective:
Detection of different serotypes of dengue virus and provide information on origin, distribution and genotype of the virus.Methods:
Dengue virus serotypes identified as DEN-1 and DEN-2 were amplified and sequenced with E gene. The consensus sequences were aligned with references E gene sequences of globally available GenBank. Phylogenetic analysis was performed using Neighbor-joining and Kimura 2-parameter model to construct phylogenetic tree.Results:
A total of 53 dengue virus isolates were positive, of which 38 [71.7%] were DENV-1 and 15 [28.3%] were DENV-2. Phylogenetic tree of DENV-1 and DENV-2 showed that the isolates were clustered in genotype I and cosmopolitan genotype, respectively considered the predominant genotypes in Southeast Asian countries. The molecular epidemiology genotype I DENV-1 and cosmopolitan genotype DENV-2 have been co-circulating in Klang Valley areas, Malaysia without shifting of genotype.Conclusion:
The study reveals that DENV-1 and DENV-2 have been circulating in Malaysia. The isolates are clustered in genotype 1 and cosmopolitian genotype, respectively. The study results would help in planning for prevention and control of dengue virus in Malaysia
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Index:
IMEMR (Eastern Mediterranean)
Type of study:
Screening study
Language:
English
Journal:
Pak. J. Med. Sci.
Year:
2015
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