Abstract:
:To determine the extent and structure of genetic variation in dengue viruses (DENV) on a restricted spatial and temporal scale, we sequenced the E (envelope) genes of DENV-1, -2, and -3 isolates collected in 2001 from children enrolled in a prospective school-based study in Kamphaeng Phet, Thailand, and diagnosed with dengue disease. Our analysis revealed substantial viral genetic variation in both time and space, with multiple viral lineages circulating within individual schools, suggesting the frequent gene flow of DENV into this microenvironment. More-detailed analyses of DENV-2 samples revealed strong clustering of viral isolates within individual schools and evidence of more-frequent viral gene flow among schools closely related in space. Conversely, we observed little evolutionary change in those viral isolates sampled over multiple time points within individual schools, indicating a low rate of mutation fixation. These results suggest that frequent viral migration into Kamphaeng Phet, coupled with population (school) subdivision, shapes the genetic diversity of DENV on a local scale, more so than in situ evolution within school catchment areas.
journal_name
J Viroljournal_title
Journal of virologyauthors
Jarman RG,Holmes EC,Rodpradit P,Klungthong C,Gibbons RV,Nisalak A,Rothman AL,Libraty DH,Ennis FA,Mammen MP Jr,Endy TPdoi
10.1128/JVI.02728-07subject
Has Abstractpub_date
2008-06-01 00:00:00pages
5494-500issue
11eissn
0022-538Xissn
1098-5514pii
JVI.02728-07journal_volume
82pub_type
杂志文章abstract::We have used feline immunodeficiency virus (FIV) protease (PR) as a mutational system to study the molecular basis of substrate-inhibitor specificity for lentivirus PRs, with a focus on human immunodeficiency virus type 1 (HIV-1) PR. Our previous mutagenesis studies demonstrated that discrete substitutions in the acti...
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更新日期:1972-08-01 00:00:00
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更新日期:1980-02-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.7.5227-5235.1997
更新日期:1997-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.7.4882-4891.1997
更新日期:1997-07-01 00:00:00