{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T12:37:20Z","timestamp":1777379840952,"version":"3.51.4"},"reference-count":40,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T00:00:00Z","timestamp":1638316800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["AIDS Research and Human Retroviruses"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:p>\n                    It is important to monitor the diversity and evolution of HIV-1 genotypes, especially in some remote and undeveloped regions in China where the diversity and distribution of HIV-1 genotypes are not fully clear. To investigate the genotypes and distribution of HIV-1 in far Northwestern Gansu Province of China, we selected 220 HIV-1-positive plasma samples from the Center for Disease Control and Prevention (CDC) in Gansu from January 2016 to December 2018. The viral load of inclusion samples were over 1,000 copies per milliliter. The\n                    <jats:italic toggle=\"yes\">gag<\/jats:italic>\n                    ,\n                    <jats:italic toggle=\"yes\">pol<\/jats:italic>\n                    , and\n                    <jats:italic toggle=\"yes\">env<\/jats:italic>\n                    gene of HIV-1 were amplified by nested reverse transcription-polymerase chain reaction kit, sequenced, and then identified genotypes using HIV-BLAST tool and the neighbor-joining method. One hundred fifty of 220 inclusion samples were successfully determined HIV-1 genotypes. Our results show that circulating recombinant forms (CRF) 07_BC and CRF01_AE are predominant and accounted for 46.7% and 28.0%, respectively. Other HIV-1 subtypes and genotypes included B\/B\u2019 (6.0%), CRF08_BC (4.0%), and C (1.3%). In addition, we reported CRF65_cpx and CRF55_01B subtypes in Gansu for the first time. Phylogenetic tree analysis showed that the sequences of different samples are scattered in different genotype groups, and no obvious aggregation occurs. Our results indicate the genetic variety and complexity of HIV-1 and provide critical information for HIV\/AIDS control and prevention in Gansu Province.\n                  <\/jats:p>","DOI":"10.1089\/aid.2021.0008","type":"journal-article","created":{"date-parts":[[2021,6,10]],"date-time":"2021-06-10T02:53:59Z","timestamp":1623293639000},"page":"946-953","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Characterization and Recombinant Genotypes of HIV-1 in Gansu Province, China"],"prefix":"10.1177","volume":"37","author":[{"given":"Zongjie","family":"Hou","sequence":"first","affiliation":[{"name":"Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation and Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 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School of Basic Medical Sciences, Lanzhou University, Lanzhou, China."},{"name":"Department of Geriatrics, the First School of Clinical Medicine, Lanzhou University, Lanzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiufen","family":"Du","sequence":"additional","affiliation":[{"name":"Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation and Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chen","family":"Dai","sequence":"additional","affiliation":[{"name":"Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation and Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yaning","family":"Xu","sequence":"additional","affiliation":[{"name":"Gansu Provincial Center for Disease Control 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