PDF
Full
Outline
To analyze the molecular transmission network characteristics and drug resistance of newly reported human immunodeficiency virus type 1 (HIV-1) infected individuals in Guiyang City, to provide a basis for epidemic trends and preventive and control measures.
Blood samples and demographic information of newly reported HIV-1 infected individuals who did not receive antiviral therapy in Guiyang City from 2021 to 2023 were collected. The obtained pol region gene sequences were uploaded to the Stanford University HIV drug resistance database for genotype and drug resistance analysis, and molecular transmission network was constructed based on the optimal gene distance (d=1.5%) and analyzed for factors influencing entry into the network.
A total of 171 samples were collected, and 123 (71.93%) were successfully amplified to obtain valid sequences. Six genotypes were found, mainly CRF07_BC (54.5%, 67/123) and CRF01_AE (24.4%, 30/123). A total of 38 sequences were integrated into the network, with an integration rate of 30.89%. 13 molecular clusters were formed, and the number of cases in the clusters ranged from 2 to 9. Multivariate Logistic regression results showed that heterosexual transmission, CRF07_BC and CRF01_AE were more likely to enter the network(P<0.05). CRF07_BC in Chongqing, Guangxi, Yunnan and Guiyang had cross-regional transmission. The drug resistance rate of 123 samples before treatment was 17.07% (21/123), the drug resistance rates were 7.32% for non-nucleoside reverse transcriptase inhibitors (NNRTIs), 3.25% for nucleoside reverse transcriptase inhibitors (NRTIs), 3.25% for protease inhibitors (PIs), and four samples showed dual drug resistance.
The genotypes of newly reported HIV-1 infected individuals in Guiyang were mainly CRF07_BC and CRF01_AE. CRF07_BC is closely related to Chongqing and Guangxi. The drug resistance rate of HIV-1 before treatment was high. In the future, we should continue to build molecular transmission networks for long-term monitoring of the area, cooperate with neighboring provinces and cities to take effective AIDS prevention and control measures to further curb the transmission and spread of the virus.
PDF
48
20
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
