Show simple item record

Increased predominance of HIV-1 CRF01_AE and its recombinants in the Philippines.

dc.contributor.author Denny, Thomas
dc.contributor.author Gao, Feng
dc.contributor.author Chen, Yue
dc.contributor.author Hora, Bhavna
dc.contributor.author DeMarco, Todd
dc.contributor.author Berba, Regina
dc.contributor.author Register, Heidi
dc.contributor.author Hood, Sylvia
dc.contributor.author Carter, Meredith
dc.contributor.author Stone, Mars
dc.contributor.author Pappas, Andrea
dc.contributor.author Sanchez, Ana M
dc.contributor.author Busch, Michael
dc.date.accessioned 2019-02-01T19:57:46Z
dc.date.available 2019-02-01T19:57:46Z
dc.date.issued 2019-01-24
dc.identifier.issn 0022-1317
dc.identifier.issn 1465-2099
dc.identifier.uri https://hdl.handle.net/10161/18041
dc.description.abstract The growth rate of new HIV infections in the Philippines was the fastest of any countries in the Asia-Pacific region between 2010 and 2016. To date, HIV-1 subtyping results in the Philippines have been determined by characterizing only partial viral genome sequences. It is not known whether recombination occurs in the majority of unsequenced genome regions. Near-full-length genome (NFLG) sequences were obtained by amplifying two overlapping half genomes from plasma samples collected between 2015 and 2017 from 23 newly diagnosed infected individuals in the Philippines. Phylogenetic analysis showed that the newly characterized sequences were CRF01_AE (14), subtype B (3), CRF01/B recombinants (5) and a CRF01/CRF07/B recombinant (1). All 14 CRF01_AE formed a tight cluster, suggesting that they were derived from a single introduction. The time to the most recent common ancestor (tMRCA) for CRF01_AE in the Philippines was 1995 (1992-1998), about 10-15 years later than that of CRF01_AE in China and Thailand. All five CRF01/B recombinants showed distinct recombination patterns, suggesting ongoing recombination between the two predominant circulating viruses. The identification of partial CRF07_BC sequences in one CRF01/CRF07/B recombinant, not reported previously in the Philippines, indicated that CRF07_BC may have been recently introduced into that country from China, where CRF07_BC is prevalent. Our results show that the major epidemic strains may have shifted to an increased predominance of CRF01_AE and its recombinants, and that other genotypes such as CRF07_BC may have been introduced into the Philippines.
dc.language eng
dc.relation.ispartof The Journal of general virology
dc.relation.isversionof 10.1099/jgv.0.001198
dc.title Increased predominance of HIV-1 CRF01_AE and its recombinants in the Philippines.
dc.type Journal article
dc.date.updated 2019-02-01T19:57:45Z
pubs.organisational-group School of Medicine
pubs.organisational-group Duke
pubs.organisational-group Duke Human Vaccine Institute
pubs.organisational-group Institutes and Centers
pubs.organisational-group Medicine, Duke Human Vaccine Institute
pubs.organisational-group Medicine
pubs.organisational-group Clinical Science Departments
pubs.organisational-group Medicine, Infectious Diseases
pubs.publication-status Published


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record