{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:20:29Z","timestamp":1760145629837,"version":"build-2065373602"},"reference-count":49,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,8,6]],"date-time":"2024-08-06T00:00:00Z","timestamp":1722902400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Consejo Nacional de Ciencia, Humanidades y Tecnolog\u00eda (CONAHCYT)","award":["CONACYT PN-2017-01-5254"],"award-info":[{"award-number":["CONACYT PN-2017-01-5254"]}]},{"name":"Programa de Fortalecimiento de Institutos, Centros y Laboratorios de Investigaci\u00f3n 2021, Universidad de Guadalajara","award":["CONACYT PN-2017-01-5254"],"award-info":[{"award-number":["CONACYT PN-2017-01-5254"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>The Hepatitis C Virus (HCV), with its diverse genotypes and subtypes, has significantly impacted the health of millions of people worldwide. Analyzing the risk factors is essential to understanding the spread of the disease and developing appropriate prevention strategies. This study aimed to identify risk factors associated with HCV subtype transmission and calculate the emergence time of subtype 1a in Mexico. A cross-sectional study was conducted from January 2014 to December 2018, involving 260 HCV-infected adults. HCV infection was confirmed via Enzyme-Linked Immunosorbent Assay, and viral load was measured by real-time PCR. Genotyping\/subtyping tools were the Line Probe Assay and Sanger sequencing of the non-structural region 5B (NS5B). The most frequent HCV subtype was 1a (58.5%), followed by subtypes 1b (19.2%), 3a (13.1%), 2b (5.4%), 2a\/2c (2.7%), 2a (0.8%), and 4a (0.4%). Intravenous drug use and tattoos were significant risk factors for subtypes 1a and 3a, while hemodialysis and blood transfusion were linked with subtype 1b. For the evolutionary analysis, 73 high-quality DNA sequences of the HCV subtype 1a NS5B region were used, employing a Bayesian coalescent analysis approach. This analysis suggested that subtype 1a was introduced to Mexico in 1976, followed by a diversification event in the mid-1980s. An exponential increase in cases was observed from 1998 to 2006, stabilizing by 2014. In conclusion, this study found that HCV subtypes follow distinct transmission routes, emphasizing the need for targeted prevention strategies. Additionally, the findings provide valuable insights into the origin of HCV subtype 1a. By analyzing the history, risk factors, and dynamics of the HCV epidemic, we have identified these measures: limiting the harm of intravenous drug trafficking, enhancing medical training and infrastructure, and ensuring universal access to antiviral treatments. The successful implementation of these strategies could lead to an HCV-free future in Mexico.<\/jats:p>","DOI":"10.3390\/v16081259","type":"journal-article","created":{"date-parts":[[2024,8,6]],"date-time":"2024-08-06T08:07:59Z","timestamp":1722931679000},"page":"1259","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Risk Factors Associated with Hepatitis C Subtypes and the Evolutionary History of Subtype 1a in Mexico"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1777-0920","authenticated-orcid":false,"given":"Saul","family":"Laguna-Meraz","sequence":"first","affiliation":[{"name":"Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, \u201cFray Antonio Alcalde\u201d, Guadalajara 44280, Jalisco, Mexico"},{"name":"Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexis","family":"Jose-Abrego","sequence":"additional","affiliation":[{"name":"Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, \u201cFray Antonio Alcalde\u201d, Guadalajara 44280, Jalisco, Mexico"},{"name":"Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sonia","family":"Roman","sequence":"additional","affiliation":[{"name":"Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, \u201cFray Antonio Alcalde\u201d, Guadalajara 44280, Jalisco, Mexico"},{"name":"Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5562-1395","authenticated-orcid":false,"given":"Leonardo","family":"Leal-Mercado","sequence":"additional","affiliation":[{"name":"Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, \u201cFray Antonio Alcalde\u201d, Guadalajara 44280, Jalisco, Mexico"},{"name":"Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"},{"name":"Doctoral Program in Molecular Biology in Medicine, Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arturo","family":"Panduro","sequence":"additional","affiliation":[{"name":"Department of Genomic Medicine in Hepatology, Civil Hospital of Guadalajara, \u201cFray Antonio Alcalde\u201d, Guadalajara 44280, Jalisco, Mexico"},{"name":"Health Sciences Center, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,6]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2024). 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