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Kamuyu G, Coelho da Silva F, Tenet V, Schussler J, Godi A, Herrero R, Porras C, Mirabello L, Schiller JT, Sierra MS, Kreimer AR, Clifford GM, Beddows S. Global evaluation of lineage-specific human papillomavirus capsid antigenicity using antibodies elicited by natural infection. Nat Commun 2024; 15:1608. [PMID: 38383518 PMCID: PMC10881982 DOI: 10.1038/s41467-024-45807-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024] Open
Abstract
Human Papillomavirus (HPV) type variants have been classified into lineages and sublineages based upon their whole genome sequence. Here we have examined the specificity of antibodies generated following natural infection with lineage variants of oncogenic types (HPV16, 18, 31, 33, 45, 52 and 58) by testing serum samples assembled from existing archives from women residing in Africa, The Americas, Asia or Europe against representative lineage-specific pseudoviruses for each genotype. We have subjected the resulting neutralizing antibody data to antigenic clustering methods and created relational antigenic profiles for each genotype to inform the delineation of lineage-specific serotypes. For most genotypes, there was evidence of differential recognition of lineage-specific antigens and in some cases of a sufficient magnitude to suggest that some lineages should be considered antigenically distinct within their respective genotypes. These data provide compelling evidence for a degree of lineage specificity within the humoral immune response following natural infection with oncogenic HPV.
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Affiliation(s)
- Gathoni Kamuyu
- Virus Reference Department, Public Health Microbiology Division, UK Health Security Agency, London, UK
| | - Filomeno Coelho da Silva
- Virus Reference Department, Public Health Microbiology Division, UK Health Security Agency, London, UK
| | - Vanessa Tenet
- International Agency for Research on Cancer (IARC/WHO) Early Detection, Prevention and Infections Branch, Lyon, France
| | - John Schussler
- Information Management Services Inc, Silver Spring, MD, USA
| | - Anna Godi
- Virus Reference Department, Public Health Microbiology Division, UK Health Security Agency, London, UK
| | - Rolando Herrero
- Agencia Costarricense de Investigaciones Biomédicas (ACIB) formerly Proyecto Epidemiológico Guanacaste, Fundación INCIENSA (FUNIN), San José, Costa Rica
| | - Carolina Porras
- Agencia Costarricense de Investigaciones Biomédicas (ACIB) formerly Proyecto Epidemiológico Guanacaste, Fundación INCIENSA (FUNIN), San José, Costa Rica
| | - Lisa Mirabello
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - John T Schiller
- Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Mónica S Sierra
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Aimée R Kreimer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Gary M Clifford
- International Agency for Research on Cancer (IARC/WHO) Early Detection, Prevention and Infections Branch, Lyon, France
| | - Simon Beddows
- Virus Reference Department, Public Health Microbiology Division, UK Health Security Agency, London, UK.
- Blood Safety, Hepatitis, Sexually Transmitted Infections and HIV Division, UK Health Security Agency, London, UK.
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Topkara S, Sucu S, Cakir AT, Harma M, Harma MI. Investigation of human papilloma virus frequency in pregnant women. J Obstet Gynaecol Res 2023; 49:2728-2733. [PMID: 37611935 DOI: 10.1111/jog.15776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
OBJECTIVE The aim of this study was to determine the frequency of human papillomavirus (HPV), HPV types, and the association with age, pregnancy, and childbirth in pregnant women. METHOD Four hundred and forty-eight pregnant women who visited our clinic were enrolled in the study. Polymerase chain reaction was used to determine HPV DNA and typing by cervical smear in the initial applications of patients with detailed history. Statistical Package for the Social Sciences (SPSS) 13.0 was used to analyze the data. RESULTS HPV DNA was positive in 26 (5.8%) of 448 patients who participated in the study. High-risk HPV types were detected in 77% of HPV-positive cases and low-risk HPV types in 23% of cases. Only one HPV type was detected in 13 patients (50%), while multiple HPV types were detected in 13 patients (50%) of the HPV-positive cases. A significant negative association was found between gravidity and positivity of HPV DNA. HPV is more common in women with lower parity and gravidity. CONCLUSION Studies conducted in different populations in different regions of Turkey have shown that the incidence of HPV in women ranges from 2.2% to 26%. In our study, the incidence of HPV DNA in pregnant women was 5.8%. It was found that there was an inverse relationship between parity and HPV DNA positivity. The HPV DNA positivity decreased with the number of births.
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Affiliation(s)
- Serap Topkara
- Department of Gynecology and Obstetrics, Ankara Etlik City Hospital, Ankara, Turkey
| | - Sadun Sucu
- Department of Perinatology, Ankara Etlik City Hospital, Ankara, Turkey
| | - Anil Turhan Cakir
- Medical Faculty, Department of Gynecology and Obstetrics, Bülent Ecevit University, Zonguldak, Kozlu, Turkey
| | - Muge Harma
- Medical Faculty, Department of Gynecology and Obstetrics, Bülent Ecevit University, Zonguldak, Kozlu, Turkey
| | - Mehmet Ibrahim Harma
- Medical Faculty, Department of Gynecology and Obstetrics, Bülent Ecevit University, Zonguldak, Kozlu, Turkey
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Fleider LA, de los Ángeles Tinnirello M, Gómez Cherey F, García MG, Cardinal LH, García Kamermann F, Tatti SA. High sensitivity and specificity rates of cobas® HPV test as a primary screening test for cervical intraepithelial lesions in a real-world setting. PLoS One 2023; 18:e0279728. [PMID: 36745662 PMCID: PMC9901754 DOI: 10.1371/journal.pone.0279728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/14/2022] [Indexed: 02/07/2023] Open
Abstract
Cervical carcinoma (CC) is the fourth most common malignancy among women. Screening with Papanicolau smear is linked to a reduction in CC incidence rates when screening programs have been developed. However, this technique has several limitations, including moderate sensitivity rates for detection of cervical preneoplastic HPV-related lesions. In this real-world study, we proposed to evaluate the sensitivity and specificity rates of cobas® test, which amplifies target DNA fragments by polymerase chain reaction and hybridization of nucleic acids for the detection of 14 HR-HPV types in a single analysis) used as primary screening test for CC and preneoplastic lesions in women aged 25-65 years in a large University Hospital in Buenos Aires. A total of 1044 patients were included in the sample (median age: 46 years); sensitivity and specificity rates for the HR-HPV test used as primary screening test were 98.66% (95% confidence interval [95CI]: 97.67-99.3%) and 87.15% (95CI: 84.93-89.15%), respectively. The positive predictive value was 88.47% (95CI: 86.54%-90.42%) and the negative predictive value was 98.48% (95CI: 97.75%-99.23%). The cobas® HR-HPV testing was highly sensitive and specific for the detection of CC and preneoplastic lesions in real practice.
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Affiliation(s)
- Laura Alicia Fleider
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
- * E-mail:
| | - María de los Ángeles Tinnirello
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Facundo Gómez Cherey
- OBGYN Department, Genital Tract Unit, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - María Gabriela García
- Molecular Infectious Disease Department, ManLab Laboratories, Buenos Aires, Argentina
| | - Lucía Helena Cardinal
- Gynecological Pathology Division, Pathology Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Florencia García Kamermann
- Gynecological Pathology Division, Pathology Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
| | - Silvio Alejandro Tatti
- Chief of OBGYN Department, Hospital de Clínicas “José de San Martín”, Buenos Aires University, Buenos Aires, Argentina
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Matos LL, da Silva JB. Potential application of human SALL4 on oral squamous cell carcinoma. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:919. [PMID: 36172107 PMCID: PMC9511190 DOI: 10.21037/atm-22-3982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 12/02/2022]
Affiliation(s)
- Leandro Luongo Matos
- Head and Neck Surgery, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (Icesp, HCFMUSP), São Paulo, Brazil.,Surgical Clinic, Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
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Vallejo-Ortega MT, Gaitán Duarte H, Mello MB, Caffe S, Perez F. A systematic review of the prevalence of selected sexually transmitted infections in young people in Latin America. Rev Panam Salud Publica 2022; 46:e73. [PMID: 35747471 PMCID: PMC9211030 DOI: 10.26633/rpsp.2022.73] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 03/03/2022] [Indexed: 11/24/2022] Open
Abstract
Objective To estimate the burden of Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), Treponema pallidum (TP), and human papillomavirus (HPV) infections among people aged 10 to 25 in Latin America and the Caribbean. Methods The MEDLINE, EMBASE, and LILACS databases were searched, as well as documents from regional organizations or national health Institutions. Population-based studies that reported prevalence or incidence of CT, NG, TP, and HPV detected through confirmatory tests in adolescents and young people were included. Two reviewers independently selected studies and extracted data. The quality of studies was assessed using the Newcastle-Ottawa Scale. Pooled estimators were calculated in cases where heterogeneity was <70%; when not feasible, prevalence ranges were reported. Results Out of a total of 3 583 references, 15 prevalence studies complied with the inclusion criteria. Due to substantial heterogeneity (>70%), it was not possible to pool frequency estimators. Among the general population, the prevalence of CT infection ranged between 2.1% and 30.1% (9 studies, 5 670 participants); for NG, prevalence ranged between 0% and 2.9% (8 studies, 5 855 participants); for TP, prevalence varied between 0% and 0.7% (3 studies, 11 208 participants), and for HPV infection, prevalence ranged between 25.1% and 55.6% (8 studies, 3 831 participants). Conclusions Reliable, population-based data on sexually transmitted infections (STIs) in adolescents and youth in Latin America and the Caribbean are limited. Additional studies are needed to better understand the burden of STIs in this population. However, given the substantial prevalence of STIs detected, countries need public health policies for prevention, early diagnosis, and treatment of STIs in young people.
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Affiliation(s)
| | - Hernando Gaitán Duarte
- Universidad Nacional de Colombia Bogotá Colombia Universidad Nacional de Colombia, Bogotá, Colombia
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Garay OU, Maritano Furcada J, Ayerbe F, Pena Requejo Rave RA, Tatti SA. Cost-Effectiveness and Budget Impact Analysis of Primary Screening With Human Papillomavirus Test With Genotyping in Argentina. Value Health Reg Issues 2021; 26:160-168. [PMID: 34530292 DOI: 10.1016/j.vhri.2021.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Cervical cancer (ICC) is the fourth leading cause of mortality in women in Argentina and primary screening with conventional cytology (Papanicolaou smear) is the most widely used strategy despite its limitations. Strategies based on human papillomavirus (HPV) testing have the potential to improve detection and reduce mortality. The objective of this study is to evaluate the cost-effectiveness and budgetary impact of a strategy based on HPV testing with genotyping. METHODS We used a decision model to compare the ICC screening strategies. The population consisted of 30- to 65-year-old females suitable for screening in Argentina. Inputs comprised epidemiologic, diagnostic performance, and costs data. The clinical impact was represented by the number of ICC detected and ICC-related mortality. Incremental cost-effectiveness ratio, estimated in terms of Argentinean pesos per life-year gained, and the budgetary impact were calculated at 5, 10, and 20 years. Univariate and probabilistic sensitivity analyses were performed. RESULTS Primary screening with HPV testing would prevent 1853 ICC deaths and reduce mortality by 13% at year 10 compared with Papanicolaou smear. With an incremental cost-effectiveness ratio of AR$329 042 in the base case, it would be cost-effective for a cost-effectiveness threshold of 1 gross domestic product per capita. It would imply an additional expense in the first 5 years and probably savings in the subsequent ones. Sensitivity analyses confirm the robustness of the findings. CONCLUSIONS The primary screening strategy based on HPV testing with genotyping compared with conventional cytology is most likely a cost-effective strategy in Argentina.
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Cancer stages and demographical study of HPV16 in gene L2 isolated from cervical cancer in Dhi-Qar province, Iraq. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01947-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Naizhaer G, Yuan J, Mijiti P, Aierken K, Abulizi G, Qiao Y. Evaluation of multiple screening methods for cervical cancers in rural areas of Xinjiang, China. Medicine (Baltimore) 2020; 99:e19135. [PMID: 32028440 PMCID: PMC7015634 DOI: 10.1097/md.0000000000019135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study is to evaluate the screening methods of cervical cancers for rural females in Kash bachu, Xinjiang, China.A total number of 3000 married females were surveyed, and subjected to the gynecological examination. In these subjects, 1993 females received the careHPV (human papillomavirus) test, while 1007 females underwent the visual inspection with acetic acid (VIA) and visual inspection with Lugol's iodine (VILI). The subjects positive for careHPV detection were subjected to Cervista, Cobas 4800, and Aptima HPV detection, and Thinprep Cytologic Test (TCT). The subjects positive for 1 detection only received colposcopy cervical biopsy.A total of 569 subjects received the cervical biopsy, and the positive rate was 2.3% (69/3000), while the detection rate for CIN (cervical intraepithelial neoplasia) II and above levels was 1.13% (34/3000). Receiver operator characteristic (ROC) curve analysis showed that, the area under the curve (AUC) value for the careHPV test was 0.671, which was higher than the VIA/VILI (0.619), suggesting higher diagnostic value for the careHPV test. For the Cervista, Cobas 4800, Aptima HPV detection, and TCT methods, the highest AUC value was observed for the TCT method, indicating that the TCT method is the most valuable for the cervical cancer screening.The diagnostic value of careHPV test is superior to the VIA/VILA detection method. The TCT method has the greatest value for the cervical cancer screening. The Cervista HPV detection method should be considered where the conditions are limited.
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Affiliation(s)
| | | | - Patima Mijiti
- The Fifth Department of Gynecology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang
| | - Kailibinuer Aierken
- The Fifth Department of Gynecology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang
| | - Guzhalinuer Abulizi
- The Fifth Department of Gynecology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang
| | - Youlin Qiao
- Institute of Epidemiology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, China
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Sichero L, Picconi MA, Villa LL. The contribution of Latin American research to HPV epidemiology and natural history knowledge. ACTA ACUST UNITED AC 2020; 53:e9560. [PMID: 32022103 PMCID: PMC6993359 DOI: 10.1590/1414-431x20199560] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 11/18/2019] [Indexed: 04/29/2023]
Abstract
Our aim was to review the major contributions of studies conducted in different Latin American (LA) countries to the field of human papillomavirus (HPV) epidemiology, natural history, risk of disease, and prevention strategies, mainly in the uterine cervix. Although cytological screening is established in several countries in LA, incidence and mortality rates from cervical cancer (CC) are still extremely high. Finally, data from large cohort studies conducted in LA countries provided seminal data to propose primary and secondary prevention modalities: the HPV vaccine has been introduced in the national immunization programs of several LA countries and multiple screening experiences using HPV testing are under evaluation in the region.
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Affiliation(s)
- L Sichero
- Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - M A Picconi
- Oncogenic Viruses Service, National and Regional HPV Reference Laboratory, National Institute of Infectious Diseases - ANLIS "Dr. Carlos G. Malbrán", Buenos Aires, Argentina
| | - L L Villa
- Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, Hospital das Clinicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.,Departamento de Radiologia e Oncologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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Torres-Poveda K, Ruiz-Fraga I, Madrid-Marina V, Chavez M, Richardson V. High risk HPV infection prevalence and associated cofactors: a population-based study in female ISSSTE beneficiaries attending the HPV screening and early detection of cervical cancer program. BMC Cancer 2019; 19:1205. [PMID: 31823749 PMCID: PMC6905062 DOI: 10.1186/s12885-019-6388-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/21/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Cervical cancer is the second cause leading of malignancy-related death among Mexican women. The present study determined the population-based prevalence of high risk Human Papillomavirus (HR-HPV) infection and associated cofactors in female beneficiaries of the Institute of Security and Social Services for State Workers (ISSSTE) attending the Program for HPV Screening and Early Detection of Cervical Cancer and registered in the Women's Cancer Detection System (SIDECAM). METHODS In a cross-sectional study, cervical samples from 115,651 female users of the program for HPV screening and early detection of cervical cancer recruited in 23 ISSSTE care centers were analyzed for HR-HPV. Logistic regression analyses, adjusting for potential confounders, were performed to determine the association of HR-HPV infection with sexual health and behavior variables and with positivity to cervical premalignant lesions by cytology. RESULTS The overall prevalence of HR-HPV infection among female ISSSTE beneficiaries in the 2013-2015 period was 13%. A bivariate analysis of relevant variables for HR-HPV infection showed a statistically significant association for age, number of sexual partners, use of hormonal contraceptives and smoking. A statistical association was found between infection by HR-HPV with the use of hormonal contraceptives, number of sexual partners and smoking and association of HPV 16 and other non-16/18 HR-HPV infection with number of lifetime sexual partners and tobacco use adjusted for age, history of hormonal contraception, number of sexual partners and tobacco use with the exception of exposition variable itself. Similarly, an association was found between HR-HPV infection, regardless of the virus genotype, with positivity to cervical premalignant lesions adjusted for age, number of lifetime sexual partners, history of hormonal contraception and tobacco use. CONCLUSIONS HR-HPV prevalence in female ISSSTE Women's Cancer Program users is similar to the population-based prevalence previously reported in Mexican women without cervical alterations. The ISSSTE robust screening and early detection program, based on cytology studies and HPV co-testing, allows us to know the prevalence of HR-HPV infection among female users of the service.
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Affiliation(s)
- K Torres-Poveda
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, 62100, Cuernavaca, Mexico. .,CONACYT-INSP, Cuernavaca, Morelos, Mexico.
| | - I Ruiz-Fraga
- Subdirección de Prevención y Protección a la Salud, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, (ISSSTE) Cd, Mexico, Mexico
| | - V Madrid-Marina
- Dirección de Infecciones Crónicas y Cáncer, Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública (INSP), Av. Universidad 655, Santa María Ahuacatitlán, Cuernavaca, 62100, Cuernavaca, Mexico
| | - M Chavez
- Subdirección de Prevención y Protección a la Salud, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, (ISSSTE) Cd, Mexico, Mexico
| | - V Richardson
- Subdirección de Prevención y Protección a la Salud, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, (ISSSTE) Cd, Mexico, Mexico
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Abstract
Supplemental digital content is available in the text. Objectives Our objective was to simulate the distribution of human papillomavirus (HPV) DNA test results from a 96-well microplate assay to identify results that may be consistent with well-to-well contamination, enabling programs to apply specific quality assurance parameters. Materials and Methods For this modeling study, we designed an algorithm that generated the analysis population of 900,000 to simulate the results of 10,000 microplate assays, assuming discrete HPV prevalences of 12%, 13%, 14%, 15%, and 16%. Using binomial draws, the algorithm created a vector of results for each prevalence and reassembled them into 96-well matrices for results distribution analysis of the number of positive cells and number and size of cell clusters (≥2 positive cells horizontally or vertically adjacent) per matrix. Results For simulation conditions of 12% and 16% HPV prevalence, 95% of the matrices displayed the following characteristics: 5 to 17 and 8 to 22 total positive cells, 0 to 4 and 0 to 5 positive cell clusters, and largest cluster sizes of up to 5 and up to 6 positive cells, respectively. Conclusions Our results suggest that screening programs in regions with an oncogenic HPV prevalence of 12% to 16% can expect 5 to 22 positive results per microplate in approximately 95% of assays and 0 to 5 positive results clusters with no cluster larger than 6 positive results. Results consistently outside of these ranges deviate from what is statistically expected and could be the result of well-to-well contamination. Our results provide guidance that laboratories can use to identify microplates suspicious for well-to-well contamination, enabling improved quality assurance.
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Adenis A, Dufit V, Douine M, Najioullah F, Molinie V, Catherine D, Kilié O, Thomas N, Deshayes JL, Brousse P, Amor HB, Pignoux R, Carles G, Grenier C, Lacoste V, Cesaire R, Nacher M. The singular epidemiology of HPV infection among French Guianese women with normal cytology. BMC Public Health 2017; 17:279. [PMID: 28340612 PMCID: PMC5366144 DOI: 10.1186/s12889-017-4181-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/09/2017] [Indexed: 11/25/2022] Open
Abstract
Background In French Guiana, cervical cancer is the second most frequent cancer in females. The objective of the present study was to describe the prevalence of HPV infections in women with normal cervical cytology living in the remote villages of French Guiana. Methods Before the study, the study team communicated in the remote villages on the importance of screening. All women from the target population were offered to participate. They signed informed consent during inclusion and then had a concomitant HPV-test and cervical smear. Only women with normal cytology and a good quality smear were analyzed. The detection of HPV-DNA was performed using the GREINER-BIO-ONE kit. Results Overall, 27.2% of women with normal cervical cytology had a positive HPV-test. There was a U-shaped evolution of prevalence with women over 50 years having the highest HPV prevalence, followed by the 20 to 29 years group. The most prevalent HPV genotypes were HPV 53(3.52%), 68(3.33%), 52(2.59%), 31(2.22%) and 16 (1.85%). The proportion of HPV 16 among HPV-infected women was 6.8%. Conclusions HPV prevalence in cytologically normal women was very high. The most prevalent genotypes were very different from what is usually described in the world, and notably in South America.
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Affiliation(s)
- Antoine Adenis
- Centre d'Investigation Clinique Antilles-Guyane, CIC INSERM 1424, Centre hospitalier de Cayenne, Rue des flamboyants, 97300, Cayenne, French Guiana
| | - Valentin Dufit
- Centre d'Investigation Clinique Antilles-Guyane, CIC INSERM 1424, Centre hospitalier de Cayenne, Rue des flamboyants, 97300, Cayenne, French Guiana
| | - Maylis Douine
- Centre d'Investigation Clinique Antilles-Guyane, CIC INSERM 1424, Centre hospitalier de Cayenne, Rue des flamboyants, 97300, Cayenne, French Guiana
| | - Fatiha Najioullah
- Laboratoire de Virologie, CHU de la Martinique, Fort de France, Martinique
| | - Vincent Molinie
- Laboratoire d'anatomopathologie, CHU de la Martinique, Fort de France, Martinique
| | - Dominique Catherine
- Laboratoire d'anatomopathologie, CHU de la Martinique, Fort de France, Martinique
| | - Odile Kilié
- Laboratoire de Virologie, CHU de la Martinique, Fort de France, Martinique
| | - Nadia Thomas
- Service de Gynecologie Obstétrique, Centre hospitalier de Cayenne, Cayenne, French Guiana
| | - Jean Luc Deshayes
- AGDOC Association de Dépistage Organisé des Cancers de Guyane, Cayenne, French Guiana
| | - Paul Brousse
- Département des Centres délocalisés de prévention et de soins, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Hatem Ben Amor
- Département des Centres délocalisés de prévention et de soins, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Remy Pignoux
- Département des Centres délocalisés de prévention et de soins, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Gabriel Carles
- Service de Gynecologie Obstétrique, Centre Hospitalier de l'Ouest Guyanais, Saint Laurent du Maroni, Cayenne, French Guiana
| | - Claire Grenier
- Département des Centres délocalisés de prévention et de soins, Centre Hospitalier de Cayenne, 97300, Cayenne, French Guiana
| | - Vincent Lacoste
- Laboratoire des interactions virus Hôtes, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Raymond Cesaire
- Laboratoire de Virologie, CHU de la Martinique, Fort de France, Martinique
| | - Mathieu Nacher
- Centre d'Investigation Clinique Antilles-Guyane, CIC INSERM 1424, Centre hospitalier de Cayenne, Rue des flamboyants, 97300, Cayenne, French Guiana.
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Vergara N, Espinoza G, Balanda M, Quiero A, Hidalgo W, San Martín H, Ramírez A, Ramírez E. Prevalence of Human Papillomavirus infection among Chilean women from 2012 to 2016. J Med Virol 2017; 89:1646-1653. [PMID: 28294358 DOI: 10.1002/jmv.24805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 01/24/2017] [Indexed: 02/02/2023]
Abstract
Here, we evaluated the prevalence of Human Papillomavirus (HPV) in two groups of Chilean women. The first group consisted of 3235 women aged 18-64 years attended in six primary care centers of Santiago. The second group consisted of 456 women 18-85 aged who consulted the Gynaecology Department of the Reference Hospital of Santiago. Samples were collected from October 2012 to February 2016. Cervical swabs were analyzed both HPV genotyping by PCR and Reverse Line Blot, and cervical cytology by Pap testing. Results showed a prevalence of 12.0% HPV positive, 10.3% high-risk (HR) HPV types positive, 3.9% low-risk (LR) HPV types positive, and 1.0% Pap positive in group 1. The most frequent types were 16, 66, and 59, with a prevalence of 3.0%, 1.6%, and 1.5%, respectively. The prevalence were 71.9% HPV positive, 67.3% HR-HPV types positive, 13.6% LR-HPV types positive, and 62.5% Pap positive in group 2. The most frequent types were 16, 31, and 58, with prevalence of 33.6%, 10.5%, and 7.0%, respectively. Among infected women with HPV: 7.6% were infected with HPV16 or HPV18, 3.0% with HPV31, HPV33 or HPV45, and 6.7% with any other HR-HPV. These findings show great difference in HPV prevalence and types between primary care and reference center, and provide useful epidemiological information to assess the impact of HPV vaccination in the future.
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Affiliation(s)
- Nicolás Vergara
- Sección Virus Oncogénicos, Subdepto. de Enfermedades Virales, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Gloria Espinoza
- Dirección de Atención Primaria, Servicio de Salud Metropolitano Central, Santiago, Chile
| | - Monserrat Balanda
- Sección Virus Oncogénicos, Subdepto. de Enfermedades Virales, Instituto de Salud Pública de Chile, Santiago, Chile
| | - Andrea Quiero
- Dirección de Atención Primaria, Servicio de Salud Metropolitano Central, Santiago, Chile
| | - Wilma Hidalgo
- Dirección de Salud, Municipalidad de Huechuraba, Santiago, Chile
| | - Héctor San Martín
- Sección Virus Oncogénicos, Subdepto. de Enfermedades Virales, Instituto de Salud Pública de Chile, Santiago, Chile
| | | | - Eugenio Ramírez
- Sección Virus Oncogénicos, Subdepto. de Enfermedades Virales, Instituto de Salud Pública de Chile, Santiago, Chile.,Programa de Virología, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
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Kolawole OE, Kola OJ, Hilda AE, Ayodeji AT, Olubunmi AD, Abayomi AO, Adekeye EA. Detection of Human Papilloma Virus (Type 16) among HIV-Positive Women in Ogbomoso, South-Western Nigeria. J Immunoassay Immunochem 2016; 37:130-40. [PMID: 26327516 DOI: 10.1080/15321819.2015.1065271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Human papilloma virus (HPV) is a common sexually transmitted virus which infects the cutaneous and mucosal epithelium. HPV Type 16 is one of the viruses that causes cervical cancer and immunocompromised individuals are at high risk of different co-infections. Women living with Human Immunodeficiency Virus (HIV) have greater risk to the virus due to their impaired immunity. This study aimed at determining the seroprevalence of HPV IgM (Type 16) among HIV-infected women in Ogbomoso. METHODS The blood sample of 180 consenting subjects were obtained and their sera subjected to serological assay using Enzyme Linked Immunosorbent Assay. Samples were collected over a period of 6 months (July-December 2014). RESULTS The mean age and mean CD4+ count of the subjects was 38.22 ± 0.79 years and 392.80 ± 20.98 cells/μL, respectively. Out of 180 subjects tested, 18 (10%; 95% confidence interval) were positive for HPV Type 16 IgM. HPV Type 16 IgM was highest among the age group 31-45 (61.11%), traders (38.89%), >500 CD4/μL (33.33%). The seroprevalence using logistic regression at P < 0.05 shows there is a significant difference between the age and CD4 (+) cell count. CONCLUSION The result provides evidence that HPV Type 16 is present among HIV-infected women in Ogbomoso and they are susceptible to cervical cancer. This seroepidemiological survey is important for the prevention efforts such as availability of vaccine.
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Affiliation(s)
- O E Kolawole
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - O J Kola
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - A E Hilda
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - A T Ayodeji
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - A D Olubunmi
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - A O Abayomi
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
| | - E A Adekeye
- a Department of Pure and Applied Biology, Microbiology/Virology Unit , Ladoke Akintola University of Technology, Ogbomoso , Oyo State , Nigeria
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Rudolph SE, Lorincz A, Wheeler CM, Gravitt P, Lazcano-Ponce E, Torres-Ibarra L, León-Maldonado L, Ramírez P, Rivera B, Hernández R, Franco EL, Cuzick J, Méndez-Hernández P, Salmerón J. Population-based prevalence of cervical infection with human papillomavirus genotypes 16 and 18 and other high risk types in Tlaxcala, Mexico. BMC Infect Dis 2016; 16:461. [PMID: 27585544 PMCID: PMC5008001 DOI: 10.1186/s12879-016-1782-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 08/15/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Cervical cancer remains an important cause of cancer mortality for Mexican women. HPV 16/18 typing may help to improve cervical cancer screening. Here we present the prevalence of high-risk human papillomavirus (hrHPV) including HPV16 and HPV18 from the FRIDA (Forwarding Research for Improved Detection and Access) population. METHODS Beginning in 2013, we recruited 30,829 women aged 30-64 in Tlaxcala, Mexico. Cervical samples were collected and tested for 14 hrHPV genotypes (16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68). We used logistic regression to estimate odds ratios with 95 % confidence intervals for hrHPV infections according to putative risk factors. RESULTS Prevalence of infection with any of the 14 hrHPV types was 11.0 %. The age-specific prevalence of all hrHPV formed a U-shaped curve with a higher prevalence for women aged 30-39 and 50-64 than women aged 40-49. Across all age groups, 2.0 % of women were positive for HPV16 and/or HPV18 (HPV16/18), respectively. HPV16/18 prevalence also showed a U-shaped curve with increased prevalence estimates for women aged both 30-39 and 60-64. Both prevalence curves had a significant quadratic age coefficient. Infections with hrHPV were positively associated with an increased number of lifetime sexual partners, a history of sexually transmitted disease, being unmarried, use of hormonal contraception, having a history of smoking and reported condom use in the multivariate model. CONCLUSIONS The FRIDA population has a bimodal distribution of both hrHPV and HPV16/18 positivity with higher prevalences at ages 30-39 and 60-64. These findings will help to evaluate triage algorithms based on HPV genotyping. TRIAL REGISTRATION The trial is registered with ClinicalTrials.gov, number NCT02510027 .
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Affiliation(s)
- Samantha E. Rudolph
- UC Berkeley-UCSF Joint Medical Program, Berkeley, CA USA
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
| | - Attila Lorincz
- Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | - Cosette M. Wheeler
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM USA
| | - Patti Gravitt
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM USA
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Leith León-Maldonado
- CONACYT, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Paula Ramírez
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Berenice Rivera
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Rubí Hernández
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Eduardo L. Franco
- Division of Cancer Epidemiology, McGill University, Montreal, Canada
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | - Pablo Méndez-Hernández
- Departamento de Enseñanza, Capacitación e Investigación, Secretaría de Salud de Tlaxcala, Tlaxcala, Tlaxcala Mexico
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Tlaxcala, Tlaxcala Mexico
| | - Jorge Salmerón
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
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Prevalence of human papillomavirus infection among women presenting for cervical cancer screening in Chile, 2014-2015. Med Microbiol Immunol 2016; 205:585-594. [PMID: 27539577 DOI: 10.1007/s00430-016-0473-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/18/2016] [Indexed: 12/18/2022]
Abstract
Cervical cancer is the fourth most common malignancy in women worldwide. In Chile, cervical cancer is the second leading cause of death among women of reproductive age, causing more than 600 deaths annually. This study was carried out to determine the burden and confirm the predominant human papillomavirus (HPV) genotypes among women presenting for cervical cancer screening in public health services in Chile. Women aged 18-64 years residing in the north and central areas covered by six primary care centers of Santiago, Chile, were invited to participate from March 2014 to August 2015. Cervical swabs were examined both HPV genotyping by PCR and Reverse Line Blot, and cervical cytology by Pap testing. A total of 1738 women were included in this study: 11.1 % were HPV positive, 9.7 % were high-risk types positive, 3.2 % were low-risk types positive, 1.4 % were Pap positive and 0.9 % were positive by both tests. The four most predominant genotypes were 16, 66, 51 and 59, with prevalence of 2.8, 1.4, 1.2 and 1.2 %, respectively. Multiple HPV infections were detected among 3.8 % participants. Age-specific prevalence of HPV showed a peak in HPV infection at younger ages (≤30 years), declining to a plateau in middle age. Among women with normal cytology, the 9.4 % were HPV positive, while 58.3 % of women with abnormal cytology were HPV positive. These findings show new epidemiological data confirming HPV 16 and 66 as the most predominant genotypes in Chile. These data are important for design successful strategies for prevention of cervical cancer in Chile.
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Okonko IO, Ofoedu V. Prevalence of IgG Antibodies against Human Papillomavirus (HPV) type 6, 11, 16, and 18 Virus-Like Particles in Women of Childbearing Age in Port Harcourt, Nigeria. J Immunoassay Immunochem 2016; 36:622-38. [PMID: 25774633 DOI: 10.1080/15321819.2015.1028587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Most HPV prevalence studies have been carried out in high-resource countries with few studies focused on low-resource regions where highest HPV prevalence in the world occurs. This study reports on prevalence of IgG antibodies against HPVs among women of childbearing age in Port Harcourt, Nigeria. One hundred and eighty-two consented women (age-range 19-45 years) were consecutively recruited. Demographic/behavioral data and 5 mL blood samples were collected from each woman. Plasma of each sample was assayed for HPV-6/11/16/18 virus-like particles using a HPV IgG ELISA kit. The overall anti-HPV prevalence was 4.9% while 7.7% with itching/wound in the private part tested positive. Most (88.9%) of the seropositive women were sexually active. Group-specific seropositivity was low (0.0-10.0%). It also showed that all the 9(100.0%) who tested positive to the HPV responded "yes" to no information on the source of HPV information. Being younger, married, high educational level, religion, and lack of information on HPV were the main correlates of HPV positivity among these women. None was vaccinated and would have been naturally exposed to at least one of HPV-6/11/16/18. With 4.9% seropositivity and lack of information regarding HPV among these women, this study recommends a statewide enlightenment campaign and vaccination.
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Affiliation(s)
- I O Okonko
- a Medical Microbiology Unit, Department of Microbiology , University of Port Harcourt , Port Harcourt , Rivers State , Nigeria
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Ingles DJ, Lin HY, Fulp WJ, Sudenga SL, Lu B, Schabath MB, Papenfuss MR, Abrahamsen ME, Salmeron J, Villa LL, Lazcano Ponce E, Giuliano AR. An analysis of HPV infection incidence and clearance by genotype and age in men: The HPV Infection in Men (HIM) Study. PAPILLOMAVIRUS RESEARCH (AMSTERDAM, NETHERLANDS) 2015; 1:126-135. [PMID: 27547836 PMCID: PMC4986989 DOI: 10.1016/j.pvr.2015.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/31/2015] [Accepted: 09/05/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Genital HPV infection in men causes benign and cancerous lesions, the incidence of which differs by age. The goal of this work was to comprehensively evaluate incidence and clearance of individual HPV genotypes among men by age group. METHODS HIV-negative men ages 18-70 with no history of anogenital cancer were recruited for the HPV Infection in Men (HIM) Study. Participants completed clinical exams and questionnaires every six months for up to ~4 years. Genital specimens underwent HPV genotyping, with associations between age and HPV assessed using Cox analyses. RESULTS 4085 men were followed for a median of 48.6 months (range: 0.3-94.0). Significantly lower HPV incidence rates were observed among the oldest age group (55-70 years) for grouped high-risk (incidence rate ratio [IRR]=0.71), HPV16 (IRR=0.54), grouped low-risk (IRR=0.74), and HPV6 (IRR=0.57) infections compared to men ages 18-24. However, incidence of the grouped 9-valent HPV vaccine types remained constant across the lifespan. Likelihood of HPV6 and HPV16 clearance remained constant until age 54, then increased significantly for men ages 55-70 (adjusted hazard ratio [AHR]=1.92 and 1.65, respectively). CONCLUSIONS Men remain susceptible to HPV infections throughout their lifespan, highlighting the need for prevention efforts with long-lasting duration.
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Affiliation(s)
- Donna J. Ingles
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Hui-Yi Lin
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - William J. Fulp
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Staci L. Sudenga
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Beibei Lu
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | | | | | | | - Jorge Salmeron
- Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Instituto Mexicano del Seguro Social, Mexico
| | | | - Eduardo Lazcano Ponce
- Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Instituto Mexicano del Seguro Social, Mexico
| | - Anna R. Giuliano
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
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Ruggeri JB, Dell Agnolo CM, Gravena AAF, de Oliveira Demitto M, Lopes TCR, Delatorre S, de Barros Carvalho MD, Consolaro MEL, Pelloso SM. Treatment and Follow-up of Human Papillomavirus Infected Women in a Municipality in Southern Brazil. Asian Pac J Cancer Prev 2015; 16:6521-6. [PMID: 26434868 DOI: 10.7314/apjcp.2015.16.15.6521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study aimed toanalyze the risk behavior for cervical cancer (CC) and the human papillomavirus (HPV) prevalence and resolution among women who received care through the private healthcare network of a municipality in southern Brazil. MATERIALS AND METHODS This descriptive and retrospective study was conducted with 25 women aged 20 to 59 years who received care through the private healthcare network and were treated at a specialty clinic in the period from January to December 2012 in a municipality in Northwest Parana, Southern Brazil. Data from medical records with cytological and HPV results were used. Following treatment, these women were followed-up and reassessed after 6 months. Data were statistically analyzed using the t-test and chi-squared test at a 5% significance level. RESULTS The mean age of the studied women was 27.8±7.75 years old, and the majority were married, with paid employment and were non-smokers. The mean age at menarche was 13.0±0.50 years old, and the mean age at first intercourse was 17.5±1.78 years, with only 8.0% (2) initiating sexual activity at an age ≤15 years old. The majority had 1 to 2 children (60.0%), while 88.0% reported having had one sexual partner in their lifetime, and all the women were sexually active. A total of 68.0% used a hormonal contraceptive method. All the women had leukorrhea and pain and were infected by a single HPV type. Regarding the lesion grade, 80.0% showed high risk and 20.0% low risk. The most prevalent high-risk HPV strain was 16. CONCLUSIONS These findings provide relevant information on HPV risk factors and infection, as well as the treatment and 6-month follow-up results, in economically and socially advantaged women with no traditional risk factors, corroborating previous reports that different risk factors may be described in different populations. Thus, this study reinforces the fact that even women without the traditional risk factors should undergo HPVmonitoring and assessment to determine the persistence of infection, promoting early diagnosis of the lesions presented and appropriate treatment to thus prevent the occurrence of CC.
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Affiliation(s)
- Joao Batista Ruggeri
- Post-Graduate Program in Health Sciences, Maringa State University, Maringa, Parana, Programa de Pos Graduacao em Ciencias da Saude, Universidade Estadual de Maringa, Universidade Estadual de Maringa, Maringa, Brazil E-mail :
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Marín HM, Torres C, Deluca GD, Mbayed VA. Human papillomavirus detection in Corrientes, Argentina: High prevalence of type 58 and its phylodynamics. Rev Argent Microbiol 2015; 47:302-11. [DOI: 10.1016/j.ram.2015.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/04/2015] [Accepted: 09/09/2015] [Indexed: 10/22/2022] Open
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Baussano I, Tshomo U, Clifford GM, Tenet V, Tshokey T, Franceschi S. Cervical cancer screening program in Thimphu, Bhutan: population coverage and characteristics associated with screening attendance. BMC Womens Health 2014; 14:147. [PMID: 25433538 PMCID: PMC4258285 DOI: 10.1186/s12905-014-0147-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 11/10/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Bhutan has been engaged in good-quality cytology-based cervical screening since 2000 and has vaccinated >90% girls against human papillomavirus (HPV) since 2010. We explored the characteristics associated with lack of previous screening and screening coverage in women age ≥25 years. METHODS Women were invited at home or during their attendance at 2 outpatient clinics, in the capital, Thimphu, and nearby Lungthenphu. Age-adjusted odds ratios for lack of previous screening by selected characteristics were computed among 1,620 participating women. In Thimphu an invitation registry allowed to estimate screening history not only among participating women but also among additional 500 women who did not accept to join our study. RESULTS Among women who had a Pap smear, lack of previous screening was associated with age <35 or ≥45 years. It was also associated with some occupations; being single, or widowed/separated; and presence of HPV infection. Multiparity and use of contraceptive methods were associated with having been screened. In women invited at home in Thimphu screening history substantially differed by participation. Past screening attendance was 59% among women recruited in the 2 clinics, 53% in women who were invited from home and accepted the invitation, but only 25% in those who refused it. Based on all women recruited from home the estimate of population-based coverage in Thimphu is 34% (95% CI: 31-37). CONCLUSIONS Transition from an opportunistic screening to an all-reaching population-based screening is yet to be achieved in Bhutan, even in the capital. Better ways to target never-screened women are needed.
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Affiliation(s)
- Iacopo Baussano
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372, Lyon Cedex 08, France.
| | - Ugyen Tshomo
- Department of Obstetrics & Gynaecology, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan.
| | - Gary M Clifford
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372, Lyon Cedex 08, France.
| | - Vanessa Tenet
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372, Lyon Cedex 08, France.
| | - Tshokey Tshokey
- Department of Laboratory Services, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan.
| | - Silvia Franceschi
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372, Lyon Cedex 08, France.
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Zhao FH, Zhu FC, Chen W, Li J, Hu YM, Hong Y, Zhang YJ, Pan QJ, Zhu JH, Zhang X, Chen Y, Tang H, Zhang H, Durand C, Datta SK, Struyf F, Bi D. Baseline prevalence and type distribution of human papillomavirus in healthy Chinese women aged 18-25 years enrolled in a clinical trial. Int J Cancer 2014; 135:2604-11. [PMID: 24740547 PMCID: PMC4277334 DOI: 10.1002/ijc.28896] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 12/05/2022]
Abstract
Baseline human papillomavirus (HPV) prevalence and type distribution were evaluated in young Chinese women enrolled in a clinical trial of an HPV vaccine (ClinicalTrials.gov registration NCT00779766). Cervical specimens and blood samples were collected at baseline from women aged 18–25 years (n = 6,051) from four sites across Jiangsu province. Cervical specimens were tested for HPV DNA by SPF10 PCR-DEIA-LiPA25 version 1, and HPV-16/18 type-specific polymerase chain reaction. Anti-HPV-16 and anti-HPV-18 antibody titres were quantified by enzyme-linked immunosorbent assay. At baseline, 15.3% of women were DNA positive for any of 14 HPV high-risk (hr) types (HPV-16/18/31/33/35/39/45/51/52/56/58/59/66/68). The most commonly detected hrHPV types in cervical specimens were HPV-52 (4.0%) and HPV-16 (3.7%). High-risk HPV DNA-positivity increased with severity of cytological abnormalities: 39.3% in atypical squamous cells of undetermined significance, 85.0% in low-grade squamous intraepithelial lesions and 97.8% in high-grade squamous intraepithelial lesions (HSIL). The hrHPV types most frequently detected in HSIL were HPV-16 (63.0%), HPV-18 (17.4%), HPV-52 (17.4%), HPV-58 (15.2%) and HPV-33 (15.2%). The hrHPV types most frequently detected in cervical intraepithelial neoplasia 2+ were HPV-16 (66.1%), HPV-33 (16.1%), HPV-52 (16.1%), HPV-58 (14.5%) and HPV-51 (11.3%). Multiple hrHPV infections were reported for 24.4% of hrHPV DNA positive women. Regardless of baseline HPV DNA status, 30.5% and 16.0% of subjects were initially seropositive for anti-HPV-16 and anti-HPV-18, respectively. In conclusion, the high baseline seropositivity rate and intermediate prevalence of cervical hrHPV types in Chinese women aged 18–25 years underlines the importance of early HPV vaccination in this population.
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Affiliation(s)
- Fang-Hui Zhao
- Cancer Institute and Hospital, Chinese Academy of Medical Sciences (CICAMS) and Peking Union Medical College, Beijing, China
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Alder S, Perinetti C, Mints M, Belkić K, Sundström K, Sandin S, Weiderpass E, Andersson S. Acceptance of human papillomavirus (HPV) vaccination among young women in a country with a high prevalence of HPV infection. Int J Oncol 2013; 43:1310-8. [PMID: 23877491 DOI: 10.3892/ijo.2013.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 06/04/2013] [Indexed: 11/05/2022] Open
Abstract
Cervical cancer is the second most common cancer among women in Argentina and the mortality has remained unchanged for the last 30 years. The 2011 national implementation of human papillomavirus (HPV) vaccination will be a key component of future cervical cancer prevention. Vaccination of young adult women is not included in the program, although these women could also benefit from the vaccine, especially in underserved areas with a high prevalence of HPV. However, research on acceptance of HPV vaccination within this group is scarce. The aim of this study was to investigate acceptance of HPV vaccination, the correlation between acceptance and cost, as well as other factors and perceptions of HPV vaccination among young adult women in Argentina. In total, 174 young women aged 18-30 years were included in this quantitative cross-sectional hospital-based study in a low resource area of the Mendoza Province, conducted through structured questionnaire-based interviews. Multinomial logistic regression models were used to investigate correlates of acceptance. Acceptance of HPV vaccination was high if it was free (95%) and even if it was not (75%). A significant positive association was found between acceptance and belief in vaccine safety (p=0.01) and between acceptance and not being a welfare recipient (p=0.00). Nearly half the participants incorrectly believed that they would be fully protected against cervical cancer after vaccination. Our findings suggest that acceptance of HPV vaccination is high among young women in a high-risk, relatively underserved area, even if vaccination is not free. Extensive misconceptions about the vaccine, however, highlight the need for further education about HPV vaccination.
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Affiliation(s)
- Susanna Alder
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet and Hospital, 171 76 Stockholm, Sweden
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Baussano I, Franceschi S, Gillio-Tos A, Carozzi F, Confortini M, Dalla Palma P, De Lillo M, Del Mistro A, De Marco L, Naldoni C, Pierotti P, Schincaglia P, Segnan N, Zorzi M, Giorgi-Rossi P, Ronco G. Difference in overall and age-specific prevalence of high-risk human papillomavirus infection in Italy: evidence from NTCC trial. BMC Infect Dis 2013; 13:238. [PMID: 23706168 PMCID: PMC3669053 DOI: 10.1186/1471-2334-13-238] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Accepted: 05/16/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although among women a decreasing prevalence of human papillomavirus (HPV) infection with increasing age has been consistently observed in high-resource countries, different age profiles have been reported elsewhere. METHODS We compared the age profile of high-risk (HR)-HPV prevalence in nine different areas of Northern and Central Italy by studying the women recruited in the intervention arm of the New Technologies in Cervical Cancer study and tested by Hybrid Capture 2. Differences in the age-distribution of HPV infection were investigated in each centre by the joinpoint approach in a logistic model. 46,900 women aged 25 to 60 years were included in the analysis. RESULTS The HR-HPV age-standardised (on Italian population) prevalence ranged from 5.7% (Trento) to 10.3% (Ravenna). HR-HPV prevalence decreased as a logistic function of increasing age in 6 of 9 centres (Trento, Verona, Florence, Bologna, Imola, and Viterbo). The effect of age on HR-HPV prevalence slopes did not differ significantly among these 6 centres, whereas significant heterogeneity in intercepts (p < 0.001) was found, reflecting different overall HR-HPV prevalence between centres. One significant joinpoint was observed in 2 centres (Padua and Ravenna), indicating that the decrease in HR-HPV prevalence by age was better described using a function composed with two logistic segments. In Padua HR-HPV prevalence decreased only slightly up to 39 years but showed a steep downturn thereafter. In Ravenna HR-HPV prevalence decreased steeply down to 45 years of age and then showed a plateau. Finally, in Turin two significant joinpoints were observed: prevalence decreased only after age 29 and showed a plateau after age 39. CONCLUSIONS Our results showed substantial differences in overall and age-specific HR-HPV prevalence across Italian areas. These findings may be related to different timing of changes in sexual behaviours across regions. Age-specific HR-HPV prevalence in Italy does not support an influence of age per se.
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Abstract
As knowledge of regional human papillomavirus (HPV) type distribution is essential for the optimization of prevention strategies, this study was carried out to explore the prevalence and type distribution of high-risk HPV in a screening population across Greece. Cervical samples were collected by local physicians and nurses in hospitals and health centers across the country from 4139 women attending for cervical cancer screening. High-risk HPV-DNA was detected by using Hybrid Capture-2 (HC2) and positive samples with adequate cellular content were further typed by restriction fragment length polymorphism-polymerase chain reaction. Almost six percent (5.9%) of women tested positive in HC2. The most common type was HPV16 (1.4% in the whole sample and 32.4% of the typed samples), followed by HPV53 (0.6 and 14.0%, respectively), HPV31 (0.6 and 12.9%, respectively), HPV35 (0.5 and 12.3%, respectively), HPV51 (0.4 and 7.8%, respectively), HPV18 (0.3 and 7.3%, respectively) and 22 more types. Almost 15% of the typed samples showed a coinfection with two HPV types and 2.1% with three types. There was a bimodal distribution by age, with the highest peak in women 20-29 years old and a lower peak in women 50-59 years old. Apart from the types originally included in HC2 cocktail, PCR analysis identified 15 more types (HPV6, HPV11, HPV34, HPV37, HPV38, HPV42, HPV53, HPV54, HPV55, HPV61, HPV62, HPV66, HPV73, HPV82, HPV83). Eleven percent of HC2-positive results arose from single-type infections with HPV53 (10%) and HPV66 (1%), which are potentially high-risk types. In conclusion, HPV16 is the most common type in the largest Greek screening sample used to date and, together with its related types, accounts for more than half of high-risk HPV infections. Approximately 10% of positive HC2 results arise from HPV53, which is not normally detected by the test, but may be clinically significant.
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Patel H, Wagner M, Singhal P, Kothari S. Systematic review of the incidence and prevalence of genital warts. BMC Infect Dis 2013; 13:39. [PMID: 23347441 PMCID: PMC3618302 DOI: 10.1186/1471-2334-13-39] [Citation(s) in RCA: 211] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 01/16/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Anogenital warts (AGWs) are a common, highly infectious disease caused by the human papillomavirus (HPV), whose high recurrence rates contribute to direct medical costs, productivity loss and increased psychosocial impact. Because of the lack of a systematic review of the epidemiology of AGWs in the literature, this study reviewed the published medical literature on the incidence and prevalence of AGWs. METHODS A comprehensive literature search was performed on the worldwide incidence and prevalence of AGWs between 2001 and 2012 using the PubMed and EMBASE databases. An additional screening of abstracts from relevant sexual health and infectious disease conferences from 2009 to 2011 was also conducted. Only original studies with general adult populations (i.e., at least including ages 20 through 40 years) were included. RESULTS The overall (females and males combined) reported annual incidence of any AGWs (including new and recurrent) ranged from 160 to 289 per 100,000, with a median of 194.5 per 100,000. New AGW incidence rates among males ranged from 103 to 168 per 100,000, with a median of 137 per 100,000 and among females from 76 to 191 per 100,000, with a median of 120.5 per 100,000 per annum. The reported incidence of recurrent AGWs was as high as 110 per 100,000 among females and 163 per 100,000 among males. Incidence peaked before 24 years of age in females and between 25 and 29 years of age among males. The overall prevalence of AGWs based on retrospective administrative databases or medical chart reviews or prospectively collected physician reports ranged from 0.13% to 0.56%, whereas it ranged from 0.2% to 5.1% based on genital examinations. CONCLUSIONS The literature suggests that AGWs are widespread and the prevalence depends on study methodology as suggested by higher rates reported from routine genital examinations versus those from treatment records. However, there remains a need for more population-based studies from certain regions including Africa, Latin America and Southern Asia to further elucidate the global epidemiology of this disease.
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Affiliation(s)
- Harshila Patel
- LA-SER Analytics, 1405 TransCanada Highway, Suite 310, Montréal, Quebec H9P 2V9, Canada
| | - Monika Wagner
- LA-SER Analytics, 1405 TransCanada Highway, Suite 310, Montréal, Quebec H9P 2V9, Canada
| | - Puneet Singhal
- Merck & Co., Inc. Global Health Outcomes, Whitehouse Station, NJ, USA
| | - Smita Kothari
- Merck & Co., Inc. Global Health Outcomes, Whitehouse Station, NJ, USA
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Chouhy D, D'Andrea RM, Iglesias M, Messina A, Ivancovich JJ, Cerda B, Galimberti D, Bottai H, Giri AA. Prevalence of human papillomavirus infection in Argentinean women attending two different hospitals prior to the implementation of the National Vaccination Program. J Med Virol 2013; 85:655-66. [PMID: 23296573 DOI: 10.1002/jmv.23509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2012] [Indexed: 12/31/2022]
Abstract
Cervarix vaccine was included in the National Immunization Program of Argentina in 2011 but data about the local distribution of human papillomavirus (HPV) infection in women exposed to the virus are scarce. This cross-sectional study determined the prevalence and type distribution of HPV infection in unvaccinated women attending routine gynecological screening in two public hospitals located in Buenos Aires and Santa Fe, Argentina. Socio-demographic, sexual behavior, and co-factors information was obtained from all participants (Buenos Aires, n = 429; Santa Fe, n = 433). Cervicovaginal swabs were tested with an MY11/09 primer-based assay and with the CUT primer system targeting mucosal/cutaneous HPVs. Participants from Buenos Aires showed significantly higher rates of HPV infection (52.4% vs. 40.6%), of multiple infections (24.2% vs. 16.4%), and of low-risk (20.3% vs. 13.9%) and high-risk types (44.1% vs. 33.3%) than those from Santa Fe. HPV-66 (Buenos Aires: 17%) and HPV-16 (Santa Fe: 8.5%) were the most prevalent types. Novel HPV-66 putative subtype and variants were identified. Vaccine types 16 and 18 were frequent (Buenos Aires: 13.5%; Santa Fe: 10.2%) but few participants had co-infections with both (Buenos Aires: 1.4%; Santa Fe: 0.2%). A common risk factor for HPV infection was having a new sexual partner in the last year (Buenos Aires: OR 2.53, P < 0.001; Santa Fe: OR 1.85, P = 0.04). This study provides valuable baseline data for future assessment of the impact of massive vaccination in Argentina and it underlines the use of additional HPV testing strategies, such as the CUT system, for surveillance and vaccinology.
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Affiliation(s)
- Diego Chouhy
- Virology Area, School of Biochemistry and Pharmaceutical Sciences, Rosario National University, Rosario, Argentina
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Venezuela RF, Kiguen AX, Frutos MC, Cuffini CG. Circulation of human papillomavirus (HPV) genotypes in women from Córdoba, Argentina, with squamous intraepithelial lesions. Rev Inst Med Trop Sao Paulo 2012; 54:11-6. [PMID: 22370748 DOI: 10.1590/s0036-46652012000100003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 11/10/2011] [Indexed: 11/22/2022] Open
Abstract
Human papillomavirus (HPV) can induce a wide spectrum of squamous intraepithelial lesions (SIL) of varying severity. The aim of the present study was to establish the frequency of HPV infection and identify the genotypes circulating in women from Córdoba, Argentina, in relation to age and cytology. A total of 186 women, between 18 and 65 years old, with antecedents of SIL, underwent a pelvic examination and had cervical cells collected for cytology and HPV DNA detection. Ninety-six samples (51.6%) were positive for HPV detection, and sixty-three (65.6%) of them showed the presence of at least one HR-HPV. Low- and high-grade SIL showed significant association in patients younger than 35 years of age. We found 18 different genotypes, with a greater presence of HR-HPV. Genotypes 16 and 6 were the most frequent. Seven (7.3%) multiple infections, 85.7% of which had at least one HR-HPV, were detected. The detection of a large number of different HPV genotypes is a warning sign. It is thus necessary to strengthen the monitoring of the circulation of high-risk genotypes, currently less prevalent in intraepithelial lesions, as a control measure for the possible impact of the implementation of vaccines against genotypes 16 and 18.
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Affiliation(s)
- Raul Fernando Venezuela
- Instituto de Virología Dr.J. M. Vanella UNC, Calle Enfermera Gordillo Gómez s/n (entre avenidas Enrique Barros y Valparaíso), Ciudad Universitaria, Córdoba Capital, Argentina.
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29
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Deluca GD, Basiletti J, Schelover E, Vásquez ND, Alonso JM, Marín HM, Lucero RH, Picconi MA. Chlamydia trachomatis as a probable cofactor in human papillomavirus infection in aboriginal women from northeastern Argentina. Braz J Infect Dis 2012; 15:567-72. [PMID: 22218516 DOI: 10.1016/s1413-8670(11)70252-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Accepted: 07/08/2011] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVES High-risk types of human papillomavirus (HPV) are strongly associated with cervical cancer (CC), and Chlamydia trachomatis (CT), the most frequent sexually transmitted bacterial infection (STBI) worldwide, seems to be a risk factor for HPV infection and for CC. It is also known that both agents are more prevalent in vulnerable communities where lack of adequate primary health care is a cause for concern. The aim of this work was to determine the impact of CT and HPV infections in women belonging to an isolated aboriginal population (Pilaga community) from a poor region in Northern Argentina (province of Formosa). For this purpose, a cross-sectional study was performed in all sexually active Pilaga women, who attended a local community-based gynecological health screening project. The polymerase chain reaction (PCR) method on a cervical brush specimen was used to detect both agents. RESULTS A total of 227 women (20% of the total female population of the Pilaga community) were studied and the overall prevalence was 26.4% for CT, 46.7% for HPV and 16.3% for concurrent infection. CT infection was higher in HPV DNA positive (34.2%) than in HPV DNA negative women (19%; OR: 2.22/95% CI = 1.16-4.28 / p = 0.009) and the most prevalent HPV types were HPV-16 (19.4%), 6 and 18 (5.3%), 58 (3.5%) and 33 (3.1%). CONCLUSIONS The prevalence of CT and HPV observed in Pilaga women are among the worst registered in Latin America. Also, data collected suggest that chlamydial infection may play an important role in the natural history of HPV infection. On this respect, we propose that the association between these two agents seems to be more related to a mutual potentiation than to the fact that they share a common route of transmission.
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Oliveira FA, Ehrig V, Lang K, Heukelbach J, Stoffler-Meilicke M, Ignatius R, Hengge UR, Feldmeier H. Human papillomavirus genotype distribution and risk factors for infection in women from a small municipality in north east Brazil. Int J STD AIDS 2012; 23:e5-10. [DOI: 10.1258/ijsa.2009.009199] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In order to assess the prevalence of human papillomavirus (HPV) infection, the HPV genotypes and factors associated with infection, we conducted a population-based survey in a small municipality in north east Brazil among women aged between 12 and 49 years. A questionnaire regarding socioeconomic variables, reproductive life and sexual behaviour was used, and women were examined gynaecologically, followed by collection of vaginal lavage with saline solution for HPV DNA determination. HPV DNA was detected by the Digene® SHARP SignalTM-System, and further genotyped by INNO-LiPA Genotyping System®. Of 579 women, HPV infection was present in 68 (prevalence: 11.7%; 95% CI: 9.3–14.7). The most common HPV types were 16, 31 and 74, each accounting for 14.7% of infections. Of all HPV-positive women, 35.3% showed multiple HPV genotypes. Variables independently associated with HPV infection were: ≥3 partners in life (adjusted OR [aOR]: 3.06; 95% CI: 1.68–5.60) and the use of oral contraception in the last 12 months (aOR: 2.39; 95% CI: 1.33–4.30). Previous participation in a cervical cancer screening programme was protective (aOR: 0.28; 95% CI: 0.13–0.60). HPV infection is common among women from rural Brazil, and HPV genotypes identified indicate that immunization could be an important preventive measure in this population.
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Affiliation(s)
- F A Oliveira
- Department of Community Health, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Anton Breinl Centre for Public Health and Tropical Medicine, School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, Australia
| | - V Ehrig
- Institute for Microbiology and Hygiene
| | - K Lang
- Institute for Microbiology and Hygiene
| | - J Heukelbach
- Department of Community Health, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
- Anton Breinl Centre for Public Health and Tropical Medicine, School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, Australia
| | | | - R Ignatius
- Institute of Tropical Medicine, Charité University, Berlin
| | - U R Hengge
- Department of Dermatology, Heinrich-Heine University, Duesseldorf, Germany
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Martorell M, Garcia-Garcia JA, Gomez-Cabrero D, Del Aguila A. Comparison of the prevalence and distribution of human papillomavirus infection and cervical lesions between urban and native habitants of an Amazonian region of Peru. GENETICS AND MOLECULAR RESEARCH 2012; 11:2099-106. [PMID: 22911594 DOI: 10.4238/2012.august.6.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We made a study of the prevalence of human papillomavirus (HPV) and cervix lesions in an Amazonian Bora native population (Bn) and compared it with the prevalence in an urban population in Iquitos (Iq). We also examined the distribution of HPV types among abnormal cervical smears in the Iq population. Swabs and cytologies were collected from 472 females. DNA consensus PCR, followed by direct sequencing, were used to determinate the HPV types in the swabs. Cytologies were classified based on the lesion grade. HPV prevalence was 43.9% in Iq and 35.4% in Bn. Cervix lesion prevalence was 20.0% in Iq and 0.3% in Bn. The frequency of high-risk HPV types among HPV+ females was 71.9% in Iq and 56.3% in Bn. The frequencies of low-risk and undetermined risk HPV types were 19.3/6.3% (Iq/ Bn) and 12.3/37.5% (Iq/Bn), respectively. In lesIq (women seeking cytological services with a previous cervix lesion diagnosis) the prevalence of HPV, was 72.9%. The incidence of carcinoma and high-grade squamous intraepithelial cervix lesions in lesIq were 31.2 and 18.8%, respectively. The Bn population had a lower incidence of high-risk HPV and cervix lesions. The high-risk strain HPV16 was significantly more frequent in Iq compared with Bn. lesIq high-risk HPVs were more frequent in high-grade squamous intraepithelial lesions and carcinoma. High-risk HPV16 prevalence was significantly higher than the prevalence of the other high-risk HPVs, especially in the high-grade squamous intraepithelial lesions and carcinoma.
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Affiliation(s)
- M Martorell
- Department of Pathology, General University Hospital of Valencia, Valencia, Spain
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Castellsagué X, Díaz M, Vaccarella S, de Sanjosé S, Muñoz N, Herrero R, Franceschi S, Meijer CJLM, Bosch FX. Intrauterine device use, cervical infection with human papillomavirus, and risk of cervical cancer: a pooled analysis of 26 epidemiological studies. Lancet Oncol 2011; 12:1023-31. [DOI: 10.1016/s1470-2045(11)70223-6] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Domfeh A, Wiredu E, Adjei A, Ayeh-Kumi P, Adiku T, Tettey Y, Gyasi R, Armah H. Cervical human papillomavirus infection in accra, ghana. Ghana Med J 2011; 42:71-8. [PMID: 19180207 DOI: 10.4314/gmj.v42i2.43596] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND This study was aimed at estimating the human papillomavirus (HPV) prevalence and its determinants among a sample of Ghanaian women. DESIGN Cross-sectional observational study. SETTING Gynaecology outpatient clinic of the Korle-Bu Teaching Hospital, Accra, Ghana; the largest tertiary care gynaecology outpatient clinic in Ghana. PARTICIPANTS Convenient sample of 75 consenting women visiting the clinic. METHODS Information was obtained through personal interviews using structured questionnaire, Pap smears obtained, and laboratory testing of cervical exfoliated cells was performed. HPV DNA was detected using a GP5+/6+ polymerase chain reaction assay. These data were analyzed using both univariate and bivariate techniques. RESULTS The mean age of participants was 33.3 years (standard deviation, 9.2) and the percentage of lifetime monogamy was 21.3%. The crude HPV DNA prevalence was 10.7%. Unlike most populations studied so far, HPV prevalence was high not only among young women, but also in middle and old age. Independent HPV determinants were being illiterate (prevalence odds ratio [POR], 13.9; 95% confidence interval [95%CI], 1.9-100) and reporting more than three lifetime sexual partners (POR, 4.6; 95% CI, 1.0-22.2). CONCLUSIONS The study indicates a high crude prevalence of HPV in a largely polygamous Ghanaian population with a high crude prevalence in older age groups, which may be a distinctive feature of polygamous populations where HPV transmission continues into middle age and cervical cancer incidence is very high.
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Affiliation(s)
- Ab Domfeh
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213, USA
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Shi JF, Canfell K, Lew JB, Qiao YL. The burden of cervical cancer in China: synthesis of the evidence. Int J Cancer 2011; 130:641-52. [PMID: 21387308 DOI: 10.1002/ijc.26042] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 01/31/2011] [Indexed: 01/12/2023]
Abstract
The burden of cervical cancer in China has not been characterized in detail. We reviewed cervical cancer data from national mortality surveys and registries, and conducted a meta-analysis to estimate the prevalence of high-grade lesions (HSIL) and high-risk human papillomavirus (HR-HPV) infections in rural Shanxi Province. We found that a national survey in the 1970s estimated age-standardized cervical cancer mortality rates as ~15 and ~83/100,000 women nationally and in Xiangyuan, Shanxi; but the latest survey (2004-2005) found much lower rates of ~3 and ~7/100,000, respectively. IARC registries record age-standardized cervical cancer incidence in China as <5/100,000 (1998-2002); but the five registry sites cover <2% of the population, and the gross domestic product per capita at each of the registry sites is higher than China's average (by a factor ranging from 1.3 to 3.9). The pooled estimate of the prevalence of HSIL and HR-HPV in women aged 30-54 years in Shanxi was 3.7%(95%CI:2.7-4.8%) and 17.2%(95%CI:13.1-21.3%), respectively. Based on a feasible range informed by the incidence data for China and other unscreened populations, the predicted indicative annual number of new cervical cancer cases nationally, in the absence of any intervention, ranges from ~27,000 to 130,000 (2010) to 42,000 to 187,000 (2050). In conclusion, recent data suggest comparatively low rates of cervical cancer incidence in China, which may be partly explained by the location of registry sites in higher socioeconomic status areas. However, the evidence is consistent with considerable heterogeneity within China, with a higher disease burden in some rural areas such as Shanxi. Therefore, the lower reported rates of cervical cancer in China should be interpreted cautiously.
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Affiliation(s)
- Ju-Fang Shi
- Cancer Epidemiology Research Unit, Cancer Council NSW, New South Wales, Australia
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dos Ramos Farías MS, Picconi MA, Garcia MN, González JV, Basiletti J, Pando MDLÁ, Avila MM. Human papilloma virus genotype diversity of anal infection among trans (male to female transvestites, transsexuals or transgender) sex workers in Argentina. J Clin Virol 2011; 51:96-9. [PMID: 21511521 DOI: 10.1016/j.jcv.2011.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2010] [Revised: 03/18/2011] [Accepted: 03/22/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND Reports on the prevalence and genotypes of HPV among trans (male to female transvestites, transsexuals or transgender) sex workers (TSW) are scarce in the literature. OBJECTIVES The aim of the study was to determine the infecting HPV genotypes among TSW in Argentina. STUDY DESIGN 119 TSW were recruited. Anal cells were self collected with a cytobrush. HPV DNA detection was carried out by PCR and genotyping was performed by RLB. RESULTS HPV prevalence was 97.4%. 103/111 HPV positive samples were genotyped. High risk genotypes were detected in 82.5%. Two or more coinfecting HPV genotypes were found in 70.9%. One case showed up to 10 different coinfecting types. The number of genotypes was not related to condom usage. Infection rates were similar for HIV positive (100%) and HIV negative (95.8%) participants. However, 18.8% of HIV negative had 4-9 different genotypes, while among HIV positive this percentage raised to 46.2% (p=0.006). Prevalence of high risk genotypes and the frequency of each high risk type were similar between HIV positive and HIV negative groups. According to the participants' answers HIV status showed no association with condom usage. CONCLUSIONS The high HPV prevalence, the coinfection with multiple genotypes and the high frequency of high risk genotypes detected, together with a situation of extreme social marginalization, discrimination and stigmatization make this population to be of extreme vulnerability.
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Affiliation(s)
- María Sol dos Ramos Farías
- Centro Nacional de Referencia para el Sida, Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Argentina.
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Vaccarella S, Franceschi S, Clifford GM, Touzé A, Hsu CC, de Sanjosé S, Pham THA, Nguyen TH, Matos E, Shin HR, Sukvirach S, Thomas JO, Boursaghin L, Gaitan J, Snijders PJF, Meijer CJLM, Muñoz N, Herrero R, Coursaget P. Seroprevalence of antibodies against human papillomavirus (HPV) types 16 and 18 in four continents: the International Agency for Research on Cancer HPV Prevalence Surveys. Cancer Epidemiol Biomarkers Prev 2011; 19:2379-88. [PMID: 20826835 DOI: 10.1158/1055-9965.epi-10-0336] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Few human papillomavirus (HPV) seroprevalence studies have been carried out in women from low-resource countries. METHODS Seroprevalence of antibodies against HPV16 and HPV18 was assessed in 7,074 women ≥15 years of age (median 44 years) from eight world areas. Serum antibodies against HPV16 and HPV18 were tested for using enzyme-linked immunosorbent assay. HPV DNA was assessed using a general primer GP5+/6+-mediated PCR. RESULTS HPV16 and HPV18 seroprevalence both ranged from <1% (Hanoi, Vietnam) to >or=25% (Nigeria). Of women who were HPV16 or HPV18 DNA-positive, seropositivity for the same type was 39.8% and 23.2%, respectively. Seropositivity for either type was directly associated with markers of sexual behavior. HPV16 and/or 18 (HPV16/18)-seropositive women had an increased risk of having cytologic abnormalities only if they were also HPV DNA-positive. A high international correlation was found between HPV16/18 seroprevalence and overall HPV DNA prevalence (r = 0.81; P = 0.022). However, HPV16/18 seroprevalence was substantially higher than the corresponding DNA prevalence in all study areas (although to different extents) and, contrary to DNA, tended to increase from young to middle age, and then decline or remain fairly constant. In all study areas, the vast majority of the information on the burden of exposure to HPV16/18 derived from serology. CONCLUSIONS The correlation between HPV DNA and HPV serology was not very good at an individual woman level, but high at a population level. IMPACT HPV serology is a poor marker of current infection or related lesions, but it can contribute, together with DNA, in evaluating the variations in the burden of HPV infection worldwide.
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Affiliation(s)
- Salvatore Vaccarella
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon cedex 08, France.
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Tsao KC, Huang CG, Kuo YB, Chang TC, Sun CF, Chang CA, Yang SL, Chan EC. Prevalence of human papillomavirus genotypes in northern Taiwanese women. J Med Virol 2010; 82:1739-45. [PMID: 20827772 DOI: 10.1002/jmv.21870] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The prevalence of Human Papillomavirus (HPV) in the general population of northern Taiwan is described. A total of 343 consecutive cervical swabs from women visiting the medical center for routine gynecologic care were included. Cervical cell cytology was examined by the Papanicolaou (Pap) test, and a PCR-based hybridization gene chip analysis was used to identify HPV genotypes. The HPV prevalence in the overall population was 32.4%. When divided into two groups according to cytology, 20.9% of women with normal cytology were HPV positive while 75.3% of women with abnormal cytology were HPV positive. Among positive samples, 68.5% were single type infections while 31.5% harbored multiple HPV types. A total of 32 types of HPV were identified; the leading five were HPV16 (5.8%), HPV58 (5.3%), HPV53 (4.1%), HPV52 (3.8%), and HPV18 (2.3%). Our results constitute baseline data and may provide important implications for future prophylactic programs. The relatively high prevalence of HPV 58, 53, and 52 among northern Taiwanese women has important implications for vaccine development.
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Affiliation(s)
- Kuo-Chien Tsao
- Department of Laboratory Medicine, Lin-kou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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Martorell M, García-García JA, Ortiz C, Pérez-Vallés A, Calabuig C, Gómez-Cabrero D, Escolano M, Montesinos M. Prevalence and distribution of human papillomavirus findings in swab specimens from gynaecology clinics of the east coast of Spain. ACTA ACUST UNITED AC 2010; 42:549-53. [PMID: 20210514 DOI: 10.3109/00365541003602056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of this study was to determine the prevalence of human papillomavirus (HPV) among females in the east coast of Spain. A total of 1956 women visiting gynaecology clinics for routine check-ups were included in the study. Swabs were analyzed for HPV DNA by consensus polymerase chain reaction followed by direct sequencing. The overall HPV prevalence was 12.99%. HPV vaccine types 6, 11, 16 and 18 were detected in 6.13% of female participants.
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Affiliation(s)
- Miguel Martorell
- Department of Pathology, Hospital General Universitario de Valencia, Valencia, Spain
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Li C, Wu M, Wang J, Zhang S, Zhu L, Pan J, Zhang W. A Population-based Study on the Risks of Cervical Lesion and Human Papillomavirus Infection among Women in Beijing, People's Republic of China. Cancer Epidemiol Biomarkers Prev 2010; 19:2655-64. [PMID: 20719907 DOI: 10.1158/1055-9965.epi-10-0212] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Changdong Li
- Beijing Obstetric and Gynecology Hospital, Capital Medical University, Beijing, China
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Kightlinger RS, Irvin WP, Archer KJ, Huang NW, Wilson RA, Doran JR, Quigley NB, Pinkerton JV. Cervical cancer and human papillomavirus in indigenous Guyanese women. Am J Obstet Gynecol 2010; 202:626.e1-7. [PMID: 20430361 DOI: 10.1016/j.ajog.2010.03.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Revised: 02/04/2010] [Accepted: 03/05/2010] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the prevalence of cervical disease, human papillomavirus infection, and human papillomavirus (HPV) genotypes in indigenous villages of Guyana. STUDY DESIGN This is a retrospective analysis of a clinical cervical cancer screening and treatment program: 2250 women underwent cytologic screening; 1423 women were concomitantly screened for HPV. HPV genotyping was performed in 45 women with high-grade dysplasia and in 9 women with cervical carcinoma. RESULTS We found invasive cervical carcinoma in 0.80% of the women, cervical intraepithelial neoplasia II and III in 5.07% of the women, and a high-risk HPV infection rate in 19.3% of the women, all of which peaked between the ages of 20-30 years. Sixteen genotypes were detected in women with high-grade dysplasia or cancer: HPV 31, 25.0%; HPV 16, 22.7%; HPV 18, 13.6%. The rate of HPV 16 and 18 in cervical cancer was 55.50%. CONCLUSION Indigenous Guyanese women have a high rate of cervical cancer and high-grade dysplasia, with an apparent predominance of HPV 16 and 18 in invasive cancer and overrepresentation of HPV 31 in high-grade dysplasia.
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Affiliation(s)
- Rebecca S Kightlinger
- Department of Obstetrics and Gynecology, University of Virginia, Charlottesville, VA, USA
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41
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Stamataki P, Papazafiropoulou A, Elefsiniotis I, Giannakopoulou M, Brokalaki H, Apostolopoulou E, Sarafis P, Saroglou G. Prevalence of HPV infection among Greek women attending a gynecological outpatient clinic. BMC Infect Dis 2010; 10:27. [PMID: 20156352 PMCID: PMC2829020 DOI: 10.1186/1471-2334-10-27] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Accepted: 02/15/2010] [Indexed: 11/29/2022] Open
Abstract
Background Human papillomavirus (HPV) infection is a causative factor for cervical cancer. Early detection of high risk HPV types might help to identify women at high risk of cervical cancer. The aim of the present study was to examine the HPV prevalence and distribution in cervical smears in a sample of Greek women attending a gynecological outpatient clinic and to explore the determinants of the infection. Methods A total of 225 women were studied. All women underwent a regular gynecological control. 35 HPV types were studied; 6, 11, 16, 18, 26, 31, 33, 35, 39, 40, 42, 43, 44, 45, 51, 52, 53, 54, 56, 58, 59, 61, 62, 66, 68, 70, 71, 72, 73, 81, 82, 83, 84, 85 and 89. Also, basic demographic information, sociodemographic characteristics and sexual behavior were recorded. Results HPV was detected in 22.7% of the study population. The percentage of the newly diagnosed women with HPV infection was 17.3%. HPV-16 was the most common type detected (5.3%) followed by HPV-53 (4.9%). 66.2% of the study participants had a Pap test during the last year without any abnormalities. HPV infection was related positively with alcohol consumption (OR: 2.19, 95% CI: 1.04-4.63, P = 0.04) and number of sexual partners (OR: 2.16, 95% CI: 1.44-3.25, P < 0.001), and negatively with age (OR: 0.93, 95% CI: 0.87-0.99, P = 0.03), and monthly income (OR: 0.63, 95% CI: 0.44-0.89, P = 0.01). Conclusion The prevalence of HPV in women attending an outpatient clinic is high. Number of sexual partners and alcohol consumption were the most significant risk factors for HPV infection, followed by young age and lower income.
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Affiliation(s)
- Petroula Stamataki
- Surgical Department, Naval Hospital of Athens, 70 Dinokratous, 115 21 Athens, Greece
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Vaccarella S, Franceschi S, Snijders PJ, Herrero R, Meijer CJ, Plummer M. Concurrent Infection with Multiple Human Papillomavirus Types: Pooled Analysis of the IARC HPV Prevalence Surveys. Cancer Epidemiol Biomarkers Prev 2010; 19:503-10. [DOI: 10.1158/1055-9965.epi-09-0983] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Dinc B, Rota S, Onan A, Bozdayi G, Taskiran C, Biri A, Güner H. Prevalence of human papillomavirus (HPV) and HPV-16 genotyping by real-time PCR in patients with several cervical pathologies. Braz J Infect Dis 2010. [DOI: 10.1016/s1413-8670(10)70005-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Chan PKS, Ho WCS, Wong MCS, Chang AR, Chor JSY, Yu MY. Epidemiologic risk profile of infection with different groups of human papillomaviruses. J Med Virol 2009; 81:1635-44. [PMID: 19623668 DOI: 10.1002/jmv.21575] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study identified the age-specific prevalence and epidemiologic risk profile for infection with different groups and species of human papillomaviruses (HPV). Structured interview and HPV testing were conducted for 2,604 Chinese women self-referred for cervical screening. Independent risk factors for infection were identified by multiple logistic regressions. Overall, a major peak of HPV infection was observed at women aged 26-30 years, and a minor peak at 46-55 years. This pattern was observed for high-risk, low-risk, and alpha-5/7/9 HPVs; but alpha-3/6 HPVs showed peaks of similar magnitudes in young and older women. Independent risk factors for HPV infection (all types combined) included younger age (OR [95% CI] for >55 vs. < or =30 years = 0.22 [0.09-0.55]; 31-45 vs. < or = 30 years = 0.57 [0.33-0.99]), having > or =4 lifetime sexual partners (2.28 [1.06-4.88]), and smoking (2.24 [1.22-4.10]). Young age and smoking were the most consistent independent risk factors observed across different HPV groups. The risk profile for high-risk HPV was similar to alpha-5/7/9. Single-type infection was associated with having more sexual partners, higher education level and oral contraception; whereas multiple-type infection was associated with smoking. In conclusion, a U-shaped age-specific prevalence curve was observed for HPV infection overall, but with a different pattern for different HPV species. Different HPV groups showed variations in their risk profiles. These data are useful for formulating preventative strategy for HPV-related diseases. Catch-up vaccination program in Hong Kong should cover a wider age group as the first peak of infection occurred relatively late.
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Affiliation(s)
- Paul K S Chan
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region, China.
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Colantonio L, Gómez JA, Demarteau N, Standaert B, Pichón-Rivière A, Augustovski F. Cost-effectiveness analysis of a cervical cancer vaccine in five Latin American countries. Vaccine 2009; 27:5519-29. [DOI: 10.1016/j.vaccine.2009.06.097] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 06/09/2009] [Accepted: 06/29/2009] [Indexed: 01/02/2023]
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Franceschi S, Plummer M, Clifford G, de Sanjose S, Bosch X, Herrero R, Muñoz N, Vaccarella S. Differences in the risk of cervical cancer and human papillomavirus infection by education level. Br J Cancer 2009; 101:865-70. [PMID: 19654578 PMCID: PMC2736843 DOI: 10.1038/sj.bjc.6605224] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Cervical cancer risk is associated with low education even in an unscreened population, but it is not clear whether human papillomavirus (HPV) infection follows the same pattern. METHODS Two large multicentric studies (case-control studies of cervical cancer and HPV prevalence survey) including nearly 20 000 women. GP5+/GP6+ PCR was used to detect HPV. RESULTS Education level was consistently associated with cervical cancer risk (odds ratio (OR) for 0 and >5 years vs 1-5 years=1.50, 95% confidence interval (CI): 1.25-1.80 and 0.69, 95% CI: 0.57-0.82, respectively, P for trend <0.0001). In contrast, no association emerged between education level and HPV infection in either of the two IARC studies. A majority of the women studied had never had a Pap smear. The association between low education level and cervical cancer was most strongly attenuated by adjustment for age at first sexual intercourse and first pregnancy. Parity and screening history (but not lifetime number of sexual partners, husband's extramarital sexual relationships, and smoking) also seemed to be important confounding factors. CONCLUSION The excess of cervical cancer found in women with a low socio-economic status seems, therefore, not to be explained by a concomitant excess of HPV prevalence, but rather by early events in a woman's sexually active life that may modify the cancer-causing potential of HPV infection.
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Affiliation(s)
- S Franceschi
- International Agency for Research on Cancer, 69372 Lyon cedex 08, France.
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Moore RA, Ogilvie G, Fornika D, Moravan V, Brisson M, Amirabbasi-Beik M, Kollar A, Burgess T, Hsu R, Towers L, Lo J, Matisic J, Brooks-Wilson A. Prevalence and type distribution of human papillomavirus in 5,000 British Columbia women--implications for vaccination. Cancer Causes Control 2009; 20:1387-96. [PMID: 19475481 PMCID: PMC2746887 DOI: 10.1007/s10552-009-9365-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Accepted: 05/06/2009] [Indexed: 11/29/2022]
Abstract
Background Human papilloma virus (HPV) prevalence studies performed in different regions and population groups across Canada would inform public health decisions regarding implementation of anti-HPV vaccines. Methods A total of 8,700 liquid-based specimens from 8,660 women aged 13–86 from throughout British Columbia were collected. DNA was isolated from 4,980 of these samples and assessed for HPV prevalence and type distribution. HPV was detected by PCR analysis using tagged GP5+/6+ consensus primers to amplify the L1 region of HPV; typing was done by bi-directional sequencing of PCR products. Results Overall HPV prevalence was 16.8% (age adjusted 15.5%). Prevalence of high-risk HPV was 13.9, and 10.7% of samples contained HPV16. HPV prevalence was highest in the youngest group of women (<20 years). One-third of HPV positive samples contained more than one HPV type. Percentages of low-grade (LGIL) and high-grade intraepithelial lesions (HGIL) containing high-risk HPV are 52.3 and 79.4%, respectively. Conclusions Overall HPV prevalence in this study is within the range of estimates from other studies. The prevalence of HPV16 is higher than what is found in other Canadian and international studies. HPV16 and HPV18 compose a majority of the high-risk virus in this study. Use of current HPV vaccines could considerably reduce HPV-related conditions including cervical cancer and procedures such as colposcopy. Electronic supplementary material The online version of this article (doi:10.1007/s10552-009-9365-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Richard A Moore
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, 675 West 10th Ave., Vancouver, BC, V5Z 1L3, Canada
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Miyashita M, Agdamag DM, Sasagawa T, Matsushita K, Salud LM, Salud CO, Saikawa K, Leano PS, Pagcaliwagan T, Acuna J, Ishizaki A, Kageyama S, Ichimura H. High-risk HPV types in lesions of the uterine cervix of female commercial sex workers in the Philippines. J Med Virol 2009; 81:545-51. [DOI: 10.1002/jmv.21416] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Chauhan SC, Jaggi M, Bell MC, Verma M, Kumar D. Epidemiology of Human Papilloma Virus (HPV) in Cervical Mucosa. Methods Mol Biol 2009; 471:439-456. [PMID: 19109793 DOI: 10.1007/978-1-59745-416-2_22] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In a worldwide scenario, human papillomavirus (HPV) infection is the second leading cause of cancer-related morbidity and mortality among women due to its very close association with cervical cancer. More than 100 different types of HPV genotypes have been characterized to date. Among these, approximately 24 HPV genotypes specifically infect the genital and oral mucosal system. The mucosal HPVs are most frequently sexually transmitted, and they are responsible for the most common sexually transmitted diseases throughout the world. In a majority of the cases, oncogenic/nononcogenic HPV infections spontaneously clear by themselves without any medical intervention. However, a persistent and long-term HPV infection usually leads to cervical cancer, which remains difficult to treat. In recent years, advance understanding of the structure of HPV and its pathogenesis has led to a variety of new treatments to combat HPV-related diseases, including a Food and Drug Administration-approved HPV vaccine that is very effective in young women. To effectively use this HPV vaccine worldwide, a clear understanding of HPV genotypes in different geographical populations is imperative. In this chapter, we have focused briefly on HPV genotypes and HPV prevalence in the women of different geographical populations.
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Affiliation(s)
- Subhash C Chauhan
- Department of Obstetrics and Gynecology, Sanford School of Medicine, The University of South Dakota, Sioux Falls, SD, USA
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Almonte M, Albero G, Molano M, Carcamo C, García PJ, Pérez G. Risk factors for human papillomavirus exposure and co-factors for cervical cancer in Latin America and the Caribbean. Vaccine 2008; 26 Suppl 11:L16-36. [PMID: 18945400 DOI: 10.1016/j.vaccine.2008.06.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The incidence of cervical cancer in Latin America and the Caribbean (LAC) is among the highest in the world. Because there are major demographic shifts happening in LAC countries (population growth, urbanization and ageing) cervical cancer incidence and mortality will likely continue to be a significant public health problem. Overall human papillomavirus (HPV) prevalence in the LAC general population has been found to be 2-fold higher than the average worldwide prevalence. The large HPV and cancer burden may be explained by the highly prevalent HPV variants of HPV types -16 and 18, which have an increased oncogenic potential. Given the major mode of transmission of genital HPV is sexual, certain, patterns of sexual behaviour (early age at first sexual intercourse, number of sexual partners and sexual behaviour of the partner) are associated with an increased risk of HPV genital acquisition. Although HPV infection is necessary for carcinogenesis, certain co-factors (high parity, long term use of oral contraceptives, smoking and co-infection with the human immunodeficiency virus (HIV)) help in the progression from infection to cancer. Many studies that have contributed to this evidence have been carried out in LAC and are reviewed and summarised in this article. Since HPV vaccines will likely take years to implement, and many more years to show impact on disease, cervical cancer screening programmes remain as the key intervention to control disease in LAC in the years to come.
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Affiliation(s)
- Maribel Almonte
- Non-communicable Disease Epidemiology Unit, London School of Hygiene and Tropical Medicine, London, United Kingdom.
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