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Ayerdi O, Benito R, Ortega D, Aguilera A, Montiel N, Pintos I, Díaz de Santiago A, Baza B, Soriano V, de Mendoza C. HTLV infection in persons with sexually transmitted diseases in Spain. Front Immunol 2023; 14:1277793. [PMID: 38143748 PMCID: PMC10740202 DOI: 10.3389/fimmu.2023.1277793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/13/2023] [Indexed: 12/26/2023] Open
Abstract
Background HTLV-1 infection is a neglected disease, despite estimates of 10 million people infected worldwide and producing life-threatening illnesses in 10% of carriers. Sexual transmission is the main route of contagion. However, HTLV-1 is not listed among sexually transmitted infections (STIs). Methods Serum from all consecutive individuals who had attended six STI clinics across Spain during the last 12 months were tested for HTLV antibodies using a commercial enzyme immunoassay (EIA). Reactive samples were confirmed by immunoblot. Results A total of 2,524 samples were examined. The majority (1,936; 76.7%) belonged to men, of whom 676 (34.9%) were men who have sex with men (MSM) receiving HIV pre-exposure prophylaxis. Although native Spaniards predominated (1,470; 58.2%), up to 593 (23.5%) came from Latin America and 139 (5.5%) were African. A total of 26 individuals were initially EIA reactive and immunoblot confirmed 5 as HTLV-1 and 7 as HTLV-2. All but one HTLV-1+ case came from Latin America. Three were men and two were women. Among Latin Americans, the HTLV-1 seroprevalence was 0.67%. In contrast, all seven HTLV-2+ were native Spaniards and former injection drug users, and all but one were HIV+. Conclusion The rate of HTLV infection among individuals with STIs in Spain is 0.5%, which is greater than in the general population. These results support the introduction of universal HTLV screening in persons who attend clinics for STIs.
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Affiliation(s)
- Oskar Ayerdi
- Sexually transmitted Infections Clinic, Centro Sanitario Sandoval, Madrid, Spain
| | - Rafael Benito
- Microbiology Department, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Diego Ortega
- Microbiology Department, Hospital Miguel Servet, Zaragoza, Spain
| | - Antonio Aguilera
- Microbiology Department, University of Santiago, Santiago de Compostela, Spain
| | - Natalia Montiel
- Microbiology Department, Hospital Universitario Puerta del Mar, Cádiz, Spain
| | - Ilduara Pintos
- Internal Medicine Laboratory, Puerta de Hierro University Hospital and Research Foundation-IDIPHISA, Madrid, Spain
| | - Alberto Díaz de Santiago
- Internal Medicine Laboratory, Puerta de Hierro University Hospital and Research Foundation-IDIPHISA, Madrid, Spain
| | - Begoña Baza
- Sexually transmitted Infections Clinic, Centro Sanitario Sandoval, Madrid, Spain
| | - Vicente Soriano
- Public Health Unit, UNIR Health Sciences School and Medical Center, Madrid, Spain
| | - Carmen de Mendoza
- Internal Medicine Laboratory, Puerta de Hierro University Hospital and Research Foundation-IDIPHISA, Madrid, Spain
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Viñuela L, de Salazar A, Fuentes A, Serrano-Conde E, Falces-Romero I, Pinto A, Portilla I, Masiá M, Peraire J, Gómez-Sirvent JL, Sanchiz M, Iborra A, Baza B, Aguilera A, Olalla J, Espinosa N, Iribarren JA, Martínez-Velasco M, Imaz A, Montero M, Rivero M, Suarez-García I, Maciá MD, Galán JC, Perez-Elias MJ, García-Fraile LJ, Moreno C, Garcia F. Transmitted drug resistance to antiretroviral drugs in Spain during the period 2019-2021. J Med Virol 2023; 95:e29287. [PMID: 38084763 DOI: 10.1002/jmv.29287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/17/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023]
Abstract
To evaluate the prevalence of transmitted drug resistance (TDR) to nucleoside and nonnucleoside reverse transcriptase inhibitors (NRTI, NNRTI), protease inhibitors (PI), and integrase strand transfer inhibitors (INSTI) in Spain during the period 2019-2021, as well as to evaluate transmitted clinically relevant resistance (TCRR) to antiretroviral drugs. Reverse transcriptase (RT), protease (Pro), and Integrase (IN) sequences from 1824 PLWH (people living with HIV) were studied. To evaluate TDR we investigated the prevalence of surveillance drug resistance mutations (SDRM). To evaluate TCRR (any resistance level ≥ 3), and for HIV subtyping we used the Stanford v.9.4.1 HIVDB Algorithm and an in-depth phylogenetic analysis. The prevalence of NRTI SDRMs was 3.8% (95% CI, 2.8%-4.6%), 6.1% (95% CI, 5.0%-7.3%) for NNRTI, 0.9% (95% CI, 0.5%-1.4%) for PI, and 0.2% (95% CI, 0.0%-0.9%) for INSTI. The prevalence of TCRR to NRTI was 2.1% (95% CI, 1.5%-2.9%), 11.8% for NNRTI, (95% CI, 10.3%-13.5%), 0.2% (95% CI, 0.1%-0.6%) for PI, and 2.5% (95% CI, 1.5%-4.1%) for INSTI. Most of the patients were infected by subtype B (79.8%), while the majority of non-Bs were CRF02_AG (n = 109, 6%). The prevalence of INSTI and PI resistance in Spain during the period 2019-2021 is low, while NRTI resistance is moderate, and NNRTI resistance is the highest. Our results support the use of integrase inhibitors as first-line treatment in Spain. Our findings highlight the importance of ongoing surveillance of TDR to antiretroviral drugs in PLWH particularly with regard to first-line antiretroviral therapy.
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Affiliation(s)
- Laura Viñuela
- Clinical Microbiology Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- Instituto de Investigación Ibs, Granada, Spain
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
| | - Adolfo de Salazar
- Clinical Microbiology Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- Instituto de Investigación Ibs, Granada, Spain
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
| | - Ana Fuentes
- Clinical Microbiology Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- Instituto de Investigación Ibs, Granada, Spain
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
| | - Esther Serrano-Conde
- Clinical Microbiology Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
| | | | - Adriana Pinto
- Infectious Diseases Unit, Hospital 12 de Octubre, Madrid, Spain
| | - Irene Portilla
- Infectious Diseases Unit, Hospital General Universitario de Alicante, Alicante, Spain
| | - Mar Masiá
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
- Infectious Diseases Unit, Hospital General Universitario de Elche, Elche, Spain
| | - Joaquim Peraire
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
- Infectious Diseases Unit, Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Juan Luis Gómez-Sirvent
- Infectious Diseases Unit, Hospital Universitario de Canarias, Las Palmas de Gran Canaria, Spain
| | - Marta Sanchiz
- Infectious Diseases Unit, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Asunción Iborra
- Clinical Microbiology Unit, Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Begoña Baza
- Centro Sanitario Sandoval, Hospital Clínico San Carlos, Madrid, Spain
- Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
- Instituto de Medicina de Laboratorio (IML), Madrid, Spain
| | - Antonio Aguilera
- Clinical Microbiology Unit, Complejo Hospitalario Universitario de Santiago, Santiago, Spain
| | - Julián Olalla
- Infectious Diseases Unit, Hospital Costa del Sol, Marbella, Spain
| | - Nuria Espinosa
- Infectious Diseases Unit, Hospital Virgen del Rocío, Seville, Spain
| | | | | | - Arkaitz Imaz
- Infectious Diseases Unit, Hospital Universitario de Bellvitge, Barcelona, Spain
| | - Marta Montero
- Infectious Diseases Unit, Hospital Universitario La Fe, Valencia, Spain
| | - María Rivero
- Infectious Diseases Unit, Hospital de Navarra, Pamplona, Spain
| | | | | | - Juan Carlos Galán
- Infectious Diseases Unit, Hospital Ramón y Cajal, Madrid, Spain
- Ciber de Epidemiologia y Salud Publica, CIBERESP, Madrid, Spain
- Insituto Ramón y Cajal de Investigación Sanitaria (IRYSCIS), Madrid, Spain
| | - Maria Jesus Perez-Elias
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
- Infectious Diseases Unit, Hospital Ramón y Cajal, Madrid, Spain
| | | | - Cristina Moreno
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
- Instituto de Salud Carlos III, Madrid, Spain
| | - Federico Garcia
- Clinical Microbiology Unit, Hospital Universitario Clínico San Cecilio, Granada, Spain
- Instituto de Investigación Ibs, Granada, Spain
- Ciber de Enfermedades Infecciosas, CIBERINFEC, ISCIII, Madrid, Spain
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Del Romero J, Río I, Castilla J, Baza B, Paredes V, Vera M, Rodríguez C. Absence of transmission from HIV-infected individuals with HAART to their heterosexual serodiscordant partners. Enferm Infecc Microbiol Clin 2014; 33:666-72. [PMID: 25555636 DOI: 10.1016/j.eimc.2014.10.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 09/10/2014] [Accepted: 10/30/2014] [Indexed: 01/27/2023]
Abstract
BACKGROUND Further studies are needed to evaluate the level of effectiveness and durability of HAART to reduce the risk of HIV sexual transmission in serodiscordant couples having unprotected sexual practices. METHODS A cross-sectional study was conducted with prospective cohort of heterosexual HIV serodiscordant couples where the only risk factor for HIV transmission to the uninfected partner (sexual partner) was the sexual relationship with the infected partner (index case). HIV prevalence in sexual partners at enrolment and seroconversions in follow-up were compared by antiretroviral treatment in the index partner, HIV plasma viral load in index cases and sexual risk exposures in sexual partners. In each visit, an evaluation of the risks for HIV transmission, preventive counselling and screening for genitourinary infections in the sexual partner was performed, as well as the determination of the immunological and virological situation and antiretroviral treatment in the index case. RESULTS At enrolment no HIV infection was detected in 202 couples where the index case was taking HAART. HIV prevalence in sexual partners was 9.6% in 491 couples where the index case was not taking antiretroviral treatment (p<0.001). During follow-up there was no HIV seroconversion among 199 partners whose index case was taking HAART, accruing 7600 risky sexual exposures and 85 natural pregnancies. Among 359 couples whose index case was not under antiretroviral treatment, over 13,000 risky sexual exposures and 5 HIV seroconversions of sexual partners were recorded. The percentage of seroconversion among couples having risky sexual intercourse was 2.5 (95% confidence interval [CI]: 1.1-5.6) when the index case did not undergo antiretroviral treatment and zero (95% CI: 0-3.2) when the index case received HAART. CONCLUSIONS The risk of sexual transmission of HIV from individuals with HAART to their heterosexual partners can become extremely low.
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Affiliation(s)
- Jorge Del Romero
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain.
| | - Isabel Río
- CIBER de Epidemiología y Salud Pública (CIBERESP), Spain; Centro Nacional de Epidemiología, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Jesús Castilla
- Instituto de Salud Pública de Navarra, Pamplona, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Spain
| | - Begoña Baza
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Vanessa Paredes
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Mar Vera
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Carmen Rodríguez
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
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