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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1998-7-7
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pubmed:abstractText |
To understand the origin and past dissemination of human T-cell leukemia/lymphotropic virus type I (HTLV-I) in Latin America, we conducted a phylogenetic study of five new HTLV-I isolates from Argentina. We sequenced partial fragments of long terminal repeats (LTR) of the new HTLV-Is, and then the sequences were subjected to a phylogenetic analysis for comparison with other HTLV-Is of various geographical origins. Our results indicated that all the isolates were members of the Cosmopolitan group. Furthermore, most (four out of five isolates) of the new HTLV-Is belonged to the Transcontinental (A) subgroup, the most widespread subgroup of the four subgroups in the Cosmopolitan group. In this subgroup, they were closely related to HTLV-Is found in other South American countries including those of Amerindians, and were different from those found in Africa. In contrast, the remaining one HTLV-I (ARGMF) did not show any clear similarity to known HTLV-I isolates belonging to the Cosmopolitan group. The close similarity of South American HTLV-Is strongly suggests a common origin of the virus in this continent. Our results do not support the proposed idea of recent introduction of HTLV-I into South America as a consequence of the slave trade from Africa, where phylogenetically different HTLV-Is predominate.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0146-6615
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
55
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
152-60
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9598937-Africa,
pubmed-meshheading:9598937-Argentina,
pubmed-meshheading:9598937-Human T-lymphotropic virus 1,
pubmed-meshheading:9598937-Humans,
pubmed-meshheading:9598937-Phylogeny,
pubmed-meshheading:9598937-Repetitive Sequences, Nucleic Acid,
pubmed-meshheading:9598937-South America
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pubmed:year |
1998
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pubmed:articleTitle |
HTLV-Is in Argentina are phylogenetically similar to those of other South American countries, but different from HTLV-Is in Africa.
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pubmed:affiliation |
Laboratory of Pathogenic Virus, Institute for Virus Research, Kyoto University, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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