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Loenenbach A, Pawlita M, Waterboer T, Harder T, Poethko-Müller C, Thamm M, Lachmann R, Deleré Y, Wichmann O, Wiese-Posselt M. Seroprevalence of mucosal and cutaneous human papillomavirus (HPV) types among children and adolescents in the general population in Germany. BMC Infect Dis 2022; 22:44. [PMID: 35012452 PMCID: PMC8751243 DOI: 10.1186/s12879-022-07028-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 12/28/2021] [Indexed: 11/30/2022] Open
Abstract
Background In Germany, HPV vaccination of adolescent girls was introduced in 2007. Nationally representative data on the distribution of vaccine-relevant HPV types in the pre-vaccination era are, however, only available for the adult population. To obtain data in children and adolescents, we assessed the prevalence and determinants of serological response to 16 different HPV types in a representative sample of 12,257 boys and girls aged 1–17 years living in Germany in 2003–2005. Methods Serum samples were tested for antibodies to nine mucosal and seven cutaneous HPV types. The samples had been collected during the nationally representative German Health Interview and Examination Survey for Children and Adolescents in 2003–2006. We calculated age- and gender-specific HPV seroprevalence. We used multivariable regression models to identify associations between demographic and behavioral characteristics and HPV seropositivity. Results We found low but non-zero seroprevalence for the majority of tested HPV types among children and adolescents in Germany. The overall seroprevalence of HPV-16 was 2.6%, with slightly higher values in adolescents. Seroprevalence of all mucosal types but HPV-6 ranged from 0.6% for HPV-33, to 6.4% for HPV-31 and did not differ by gender. We found high overall seroprevalence for HPV-6 with 24.8%. Cutaneous HPV type seroprevalence ranged from 4.0% for HPV-38 to 31.7% for HPV-1. In the majority of cutaneous types, seroprevalence did not differ between boys and girls, but increased sharply with age, (e.g., HPV-1 from 1.5% in 1–3-years-old to 45.1% in 10–11-years-old). Associations between behavioral factors and type-specific HPV prevalence were determined to be heterogeneous. Conclusions We report the first nationally representative data of naturally acquired HPV antibody reactivity in the pre-HPV-vaccination era among children and adolescents living in Germany. These data can be used as baseline estimates for evaluating the impact of the current HPV vaccination strategy targeting 9–14-years-old boys and girls. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07028-8.
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Affiliation(s)
- Anna Loenenbach
- Department for Infectious Disease Epidemiology, Immunization Unit, Robert Koch-Institute, Berlin, Germany. .,Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany.
| | - Michael Pawlita
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tim Waterboer
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Thomas Harder
- Department for Infectious Disease Epidemiology, Immunization Unit, Robert Koch-Institute, Berlin, Germany
| | | | - Michael Thamm
- Department of Epidemiology and Health Monitoring, Robert Koch-Institute, Berlin, Germany
| | - Raskit Lachmann
- Department for Infectious Disease Epidemiology, Immunization Unit, Robert Koch-Institute, Berlin, Germany
| | | | - Ole Wichmann
- Department for Infectious Disease Epidemiology, Immunization Unit, Robert Koch-Institute, Berlin, Germany
| | - Miriam Wiese-Posselt
- Department for Infectious Disease Epidemiology, Immunization Unit, Robert Koch-Institute, Berlin, Germany.,Institute of Hygiene and Environmental Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin, Berlin, Germany
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Datta S, Pink J, Medley GF, Petrou S, Staniszewska S, Underwood M, Sonnenberg P, Keeling MJ. Assessing the cost-effectiveness of HPV vaccination strategies for adolescent girls and boys in the UK. BMC Infect Dis 2019; 19:552. [PMID: 31234784 PMCID: PMC6591963 DOI: 10.1186/s12879-019-4108-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 05/17/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Human papillomavirus (HPV) is the most widespread sexually transmitted infection worldwide. It causes several health consequences, in particular accounting for the majority of cervical cancer cases in women. In the United Kingdom, a vaccination campaign targeting 12-year-old girls started in 2008; this campaign has been successful, with high uptake and reduced HPV prevalence observed in vaccinated cohorts. Recently, attention has focused on vaccinating both sexes, due to HPV-related diseases in males (particularly for high-risk men who have sex with men) and an equity argument over equalising levels of protection. METHODS We constructed an epidemiological model for HPV transmission in the UK, accounting for nine of the most common HPV strains. We complemented this with an economic model to determine the likely health outcomes (healthcare costs and quality-adjusted life years) for individuals from the epidemiological model. We then tested vaccination with the three HPV vaccines currently available, vaccinating either girls alone or both sexes. For each strategy we calculated the threshold price per vaccine dose, i.e. the maximum amount paid for the added health benefits of vaccination to be worth the cost of each vaccine dose. We calculated results at 3.5% discounting, and also 1.5%, to consider the long-term health effects of HPV infection. RESULTS At 3.5% discounting, continuing to vaccinate girls remains highly cost-effective compared to halting vaccination, with threshold dose prices of £56-£108. Vaccination of girls and boys is less cost-effective (£25-£53). Compared to vaccinating girls only, adding boys to the programme is not cost-effective, with negative threshold prices (-£6 to -£3) due to the costs of administration. All threshold prices increase when using 1.5% discounting, and adding boys becomes cost-effective (£36-£47). These results are contingent on the UK's high vaccine uptake; for lower uptake rates, adding boys (at the same uptake rate) becomes more cost effective. CONCLUSIONS Vaccinating girls is extremely cost-effective compared with no vaccination, vaccinating both sexes is less so. Adding boys to an already successful girls-only programme has a low cost-effectiveness, as males have high protection through herd immunity. If future health effects are weighted more heavily, threshold prices increase and vaccination becomes cost-effective.
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Affiliation(s)
- Samik Datta
- Zeeman Institute: SBIDER, Warwick Mathematics Institute and School of Life Sciences, The University of Warwick, Coventry, CV4 8UW, UK. .,National Institute of Water and Atmospheric Research, Wellington, 6021, New Zealand.
| | - Joshua Pink
- Warwick Clinical Trials Unit, Warwick Medical School, The University of Warwick, Coventry, CV4 8UW, UK
| | - Graham F Medley
- Department for Global Health and Development, London School of Hygiene and Tropical Medicine, London, WC1H 9SH, UK
| | - Stavros Petrou
- Warwick Clinical Trials Unit, Warwick Medical School, The University of Warwick, Coventry, CV4 8UW, UK
| | - Sophie Staniszewska
- Royal College of Nursing Research Institute, Warwick Medical School, The University of Warwick, Coventry, CV4 8UW, UK
| | - Martin Underwood
- Warwick Clinical Trials Unit, Warwick Medical School, The University of Warwick, Coventry, CV4 8UW, UK
| | - Pam Sonnenberg
- Research Department of Infection and Population Health, University College London, London, WC1E 6JB, UK
| | - Matt J Keeling
- Zeeman Institute: SBIDER, Warwick Mathematics Institute and School of Life Sciences, The University of Warwick, Coventry, CV4 8UW, UK
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Lind A, Lynch KF, Lundgren M, Lernmark Å, Almgren P, Ramelius A, Puustinen L, Hyöty H, Lundstig A. First trimester enterovirus IgM and beta cell autoantibodies in mothers to children affected by type 1 diabetes autoimmunity before 7 years of age. J Reprod Immunol 2018; 127:1-6. [PMID: 29550618 DOI: 10.1016/j.jri.2018.02.004] [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] [Received: 11/13/2017] [Revised: 02/12/2018] [Accepted: 02/21/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND Autoimmune (type 1) diabetes (T1D) is a frequent chronic disease in children and adolescents globally. Gestational enterovirus (EV) infections have been associated with an increased risk for T1D in the offspring. We test the hypothesis that EV infections during the first trimester were associated with beta cell autoantibodies in mothers of children who developed islet autoantibodies before 7 years of age. MATERIALS AND METHODS Local registries were used to identify mothers to children born 2000-2007 who developed either beta cell autoantibodies or T1D during follow up. Serum samples from the first trimester were located in the Biobank. A total of 448 index mothers were identified and compared to 891 matched control mothers. EV-IgM was determined in a capture enzyme immunoassay. Beta cell autoantibodies were analyzed in standard radio binding assays. RESULTS The frequency of EV-IgM in index mothers was 20% (89/448), which did not differ from the control mothers 20% (175/891) (p = 0.922). Index mothers had multiple beta cell autoantibodies more often than control mothers (p = 0.037). Beta cell autoantibodies were increased during the November-April winter months in index compared to control mothers (p = 0.022). The observed difference was possibly explained by the months of February-April (p = 0.014). Concomitant EV-IgM and beta cell autoantibodies tended to be more common among index compared to control mothers (p = 0.039). CONCLUSION EV-IgM during the first trimester may be associated with beta cell autoantibodies in mothers to children who developed either beta cell autoantibodies or T1D before 7 years of age.
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Affiliation(s)
- Alexander Lind
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Kristian F Lynch
- Health informatics Institute, Morsani College of Medicine, University of South Florida, Tampa FL, USA
| | - Markus Lundgren
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Åke Lernmark
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Peter Almgren
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Anita Ramelius
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Leena Puustinen
- Faculty of Medicine and Life Sciences, University of Tampere, Biokatu 10, 33520 Tamprere, Finland
| | - Heikki Hyöty
- Faculty of Medicine and Life Sciences, University of Tampere, Biokatu 10, 33520 Tamprere, Finland; Fimlab Laboratories, Pirkanmaa Hospital District, Tampere, Finland
| | - Annika Lundstig
- Department of Clinical Sciences, Lund University Clinical Research Center, Skåne University Hospital, 205 02 Malmö, Sweden.
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Artemchuk H, Triglav T, Oštrbenk A, Poljak M, Dillner J, Faust H. Seroprevalences of Antibodies to 11 Human Papillomavirus (HPV) Types Mark Cumulative HPV Exposure. J Infect Dis 2018. [DOI: 10.1093/infdis/jiy107] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Hanna Artemchuk
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tina Triglav
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Anja Oštrbenk
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Mario Poljak
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Slovenia
| | - Joakim Dillner
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Helena Faust
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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Khoo N, Tan L, Lim W, Chen M, Chow V. Comparative seroepidemiology of genital human papillomavirus infections in the general population in Singapore. Public Health 2017; 142:1-3. [DOI: 10.1016/j.puhe.2016.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/29/2016] [Accepted: 10/04/2016] [Indexed: 11/29/2022]
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Elfström KM, Lazzarato F, Franceschi S, Dillner J, Baussano I. Human Papillomavirus Vaccination of Boys and Extended Catch-up Vaccination: Effects on the Resilience of Programs. J Infect Dis 2016; 213:199-205. [PMID: 26142436 DOI: 10.1093/infdis/jiv368] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/25/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Decreasing human papillomavirus (HPV) vaccine prices makes scaling up of vaccination programs attractive for countries that initially targeted 1 or a few birth cohorts of girls and/or achieved low coverage. This article aims to compare the impact of alternative HPV vaccination strategies, using data from Sweden, a high-income country that has experienced vaccine price changes. METHODS Using an HPV transmission model, we compared the existing vaccination program to alternatives, accounting for a 1-time catch-up vaccination of 22-26-year-old women, with or without routine vaccination of school-age boys, and for a 1-time catch-up vaccination of males aged 13-26 years. We also assessed the resilience of vaccination alternatives to coverage reduction. RESULTS On the basis of an HPV16/18 prevalence of 12% before the HPV vaccine era, extended catch-up vaccination for females and males yielded relative reductions in the HPV prevalence of 49.4% and 55.6%, respectively, during the first 10 years after the start of each vaccination strategy, whereas the existing program yielded a relative reduction of 38.6% during the same period. The increased prevalence reduction due to catch-up vaccination continued for about 30 years. As compared to female-only routine and extended catch-up vaccination, routine vaccination of males with or without catch-up was, respectively, 12.6-fold and 7.2-fold more resilient to coverage reduction. CONCLUSIONS Vaccination strategies based on catch-up vaccination of females and males are effective for accelerating HPV prevalence reduction. Inclusion of routine male vaccination improves the resilience of vaccination programs.
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Affiliation(s)
| | - Fulvio Lazzarato
- Department of Translational Medicine, University of Piemonte Orientale Avogadro, Novara Unit of Cancer Epidemiology, Department of Medical Sciences, University of Turin, Italy International Agency for Research on Cancer, Lyon, France
| | | | - Joakim Dillner
- Department of Medical Epidemiology and Biostatistics Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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Oral human papillomavirus infection in men might contribute to HPV serology. Eur J Clin Microbiol Infect Dis 2014; 34:237-45. [DOI: 10.1007/s10096-014-2223-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 07/29/2014] [Indexed: 11/27/2022]
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Baussano I, Elfström KM, Lazzarato F, Gillio-Tos A, De Marco L, Carozzi F, Del Mistro A, Dillner J, Franceschi S, Ronco G. Type-specific human papillomavirus biological features: validated model-based estimates. PLoS One 2013; 8:e81171. [PMID: 24400036 PMCID: PMC3882251 DOI: 10.1371/journal.pone.0081171] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 10/09/2013] [Indexed: 11/19/2022] Open
Abstract
Infection with high-risk (hr) human papillomavirus (HPV) is considered the necessary cause of cervical cancer. Vaccination against HPV16 and 18 types, which are responsible of about 75% of cervical cancer worldwide, is expected to have a major global impact on cervical cancer occurrence. Valid estimates of the parameters that regulate the natural history of hrHPV infections are crucial to draw reliable projections of the impact of vaccination. We devised a mathematical model to estimate the probability of infection transmission, the rate of clearance, and the patterns of immune response following the clearance of infection of 13 hrHPV types. To test the validity of our estimates, we fitted the same transmission model to two large independent datasets from Italy and Sweden and assessed finding consistency. The two populations, both unvaccinated, differed substantially by sexual behaviour, age distribution, and study setting (screening for cervical cancer or Chlamydia trachomatis infection). Estimated transmission probability of hrHPV types (80% for HPV16, 73%-82% for HPV18, and above 50% for most other types); clearance rates decreasing as a function of time since infection; and partial protection against re-infection with the same hrHPV type (approximately 20% for HPV16 and 50% for the other types) were similar in the two countries. The model could accurately predict the HPV16 prevalence observed in Italy among women who were not infected three years before. In conclusion, our models inform on biological parameters that cannot at the moment be measured directly from any empirical data but are essential to forecast the impact of HPV vaccination programmes.
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Affiliation(s)
| | - K. Miriam Elfström
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Fulvio Lazzarato
- Unit of Cancer Epidemiology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Anna Gillio-Tos
- Unit of Cancer Epidemiology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Laura De Marco
- Unit of Cancer Epidemiology, Department of Medical Sciences, University of Turin, Turin, Italy
| | | | - Annarosa Del Mistro
- Molecular Oncological and Diagnostic Immunology, Venetian Oncology Institute (IOV), Padova, Italy
| | - Joakim Dillner
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | | | - Guglielmo Ronco
- Unit of Cancer Epidemiology, Centre for Cancer Prevention, Turin, Italy
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Age-specific seroprevalence of human papillomavirus 16, 18, 31, and 58 in women of a rural town of Colombia. Int J Gynecol Cancer 2012; 22:303-10. [PMID: 22228426 DOI: 10.1097/igc.0b013e31823c2469] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE The study's objective was to estimate human papillomavirus (HPV) genotype-specific seroprevalence to determine population HPV exposure and inform vaccine policy. METHODS This study is a cross-sectional prevalence survey of 878 women of Pueblorrico, a rural town of Colombia. A standardized questionnaire was used to obtain information on demographic characteristics, sexual and reproductive history, and smoking habits. Seropositivity to HPV-16, -18, -31, and -58 was determined by virus-like particles in an enzyme-linked immunosorbent assay. RESULTS Overall seropositivity to any HPV genotype was 27.9%. The combined seroprevalence of women 15 to 19 and 20 to 24 years old was 35.4% (95% confidence interval [CI], 25.9-46.2) and 36.0% (95% CI, 27.7-45.3), respectively. Seroprevalence for HPV-16 was 17% (95% CI, 14.6-19.6); for HPV-18, 9.8% (95% CI, 8.0-11.9); for HPV-31, 11.4% (95% CI, 9.5-13.7); and for HPV 58, 12.5% (95% CI, 10.5-14.9). Higher HPV seropositivity was associated with the lifetime number of occasional sexual partners (odds ratio, 3.05; 95% CI, 1.26-7.37) and having more than 2 regular sexual partners (odds ratio, 3.00; 95% CI, 1.21-7.45) in women younger than 44 and older than 45 years old, respectively. Use of oral contraceptives and tobacco/cigarettes was significantly associated with reduced HPV seropositivity in women older than 45 but not in women younger than 44 years old. CONCLUSIONS Human papillomavirus seropositivity is associated with measures of sexual behavior, particularly a greater lifetime number of sexual partners. Hormonal and tobacco/cigarette use may be factors influencing the HPV seropositivity in women older than 45 years old.
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Rešić Lindehammer S, Honkanen H, Nix WA, Oikarinen M, Lynch KF, Jönsson I, Marsal K, Oberste S, Hyöty H, Lernmark Å. Seroconversion to islet autoantibodies after enterovirus infection in early pregnancy. Viral Immunol 2012; 25:254-61. [PMID: 22746839 DOI: 10.1089/vim.2012.0022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Gestational enterovirus (EV) infections have been associated with an increased risk for type 1 diabetes in the offspring. We therefore analyzed non-diabetic mothers for EV exposure in early pregnancy in relation to type 1 diabetes HLA-DQ risk genotypes and seroconversion to islet autoantibodies during pregnancy. Non-diabetic mothers who had islet autoantibodies (n=365) against glutamic acid decarboxylase (GADA), islet antigen-2 autoantibodies (IA-2A), or insulin autoantibodies (IAA), in early pregnancy and at delivery were compared to islet autoantibody-negative mothers (n=1457) matched for age and sampling date. Mothers were genotyped for HLA-DQ and analyzed for both EV-RNA and EV-IgM. EV-IgM, but not EV-RNA, was detected during early pregnancy in 12% of islet autoantibody-positive mothers compared to 11% of the controls. In early pregnancy, mothers with HLA-DQ 2/2 or 2/X genotypes showed an increased risk for islet autoantibodies at delivery (OR 1.85; p=0.001). After adjusting for parity, maternal age, year of birth, and season of early pregnancy, early pregnancy EV-IgM combined with DQ2/2 or 2/X increased the risk for islet autoantibodies (OR 3.10; 95% CI 1; p=0.008). EV-IgM in early pregnancy increased the risk for islet autoantibodies at delivery in non-diabetic mothers with HLA-DQ 2/2 or 2/X type 1 diabetes risk genotypes.
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Affiliation(s)
- Sabina Rešić Lindehammer
- Department of Clinical Sciences, Lund University/CRC, Skåne University Hospital SUS, Malmö, Sweden.
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Tiggelaar SM, Lin MJ, Viscidi RP, Ji J, Smith JS. Age-specific human papillomavirus antibody and deoxyribonucleic acid prevalence: a global review. J Adolesc Health 2012; 50:110-31. [PMID: 22265107 PMCID: PMC3572199 DOI: 10.1016/j.jadohealth.2011.10.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 10/14/2011] [Accepted: 10/15/2011] [Indexed: 11/20/2022]
Abstract
PURPOSE Global data on human papillomavirus (HPV) serological and deoxyribonucleic acid (DNA) prevalence are essential to optimize HPV prophylactic vaccination strategies. METHODS We conducted a global review of age-specific HPV antibody and studies with both antibody and DNA prevalence for HPV-16, -18, -6, and -11. RESULTS One hundred seventeen studies were included; participants' ages ranged from several hours to >90 years. HPV-16 seroprevalence was generally higher in Africa, Central and South America, and North America, more prevalent among women than among men, and peaked around ages 25-40 years. HPV-18 seroprevalence was generally lower than HPV-16 with a later age peak. Data were limited for HPV-6 and -11, both of which peaked at ages similar to HPV-18. Among 9-26-year-old females, HPV-16 seroprevalence ranged from 0%-31% in North America, 21%-30% in Africa, 0%-23% in Asia/Australia, 0%-33% in Europe, and 13%-43% in Central and South America. HPV-16/-18 DNA prevalence peaked 10-15 years before corresponding HPV-16/-18 antibody prevalence. CONCLUSIONS Females within the HPV vaccine-eligible age-group (9-26 years) had a range of dual HPV-16 DNA and serology negativity from 81%-87%, whereas 90%-98% were HPV-16 DNA negative. Serology and DNA data are lacking worldwide for females younger than age 15 years, the prime target group for vaccination.
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Affiliation(s)
- Sarah M Tiggelaar
- Department of Cancer Epidemiology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Vanderbilt University, School of Medicine, Nashville, TN USA
| | - Margaret J Lin
- Department of Cancer Epidemiology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Washington University School of Medicine, Saint Louis, MO, USA
- Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Raphael P Viscidi
- Department of Pediatrics, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Jia Ji
- Department of Cancer Epidemiology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Division of Pharmaceutics, College of Pharmacy, Ohio State University, Columbus, OH, USA
| | - Jennifer S Smith
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
- Lineberger Cancer Center, University of North Carolina, Chapel Hill, North Carolina, USA
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Eklund C, Unger ER, Nardelli-Haefliger D, Zhou T, Dillner J. International collaborative proficiency study of Human Papillomavirus type 16 serology. Vaccine 2011; 30:294-9. [PMID: 22079074 DOI: 10.1016/j.vaccine.2011.10.096] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 09/29/2011] [Accepted: 10/30/2011] [Indexed: 11/29/2022]
Abstract
We performed an international proficiency study of Human Papillomavirus (HPV) type 16 serology. A common methodology for serology based on virus-like particle (VLP) ELISA was used by 10 laboratories in 6 continents. The laboratories used the same VLP reference reagent, which was selected as the most stable, sensitive and specific VLP preparation out of VLPs donated from 5 different sources. A blinded proficiency panel consisting of 52 serum samples from women with PCR-verified HPV 16-infection, 11 control serum samples from virginal women and the WHO HPV 16 International Standard (IS) serum were distributed. The mean plus 3 standard deviations of the negative control serum samples was the most generally useful "cut-off" criterion for distinguishing positive and negative samples. Using sensitivity of at least 50% and a specificity of 100% as proficiency criteria, 6/10 laboratories were proficient. In conclusion, an international Standard Operating Procedure for HPV serology, an international reporting system in International Units (IU) and a common "cut-off" criterion have been evaluated in an international HPV serology proficiency study.
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Affiliation(s)
- Carina Eklund
- WHO HPV LabNet Global Reference Laboratory, Department of Clinical and Medical Microbiology, Skåne and Lund University, Malmö, Sweden
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Lindehammer SR, Fex M, Maziarz M, Hanson I, Maršál K, Lernmark A. Early-pregnancy cytokines in mothers to children developing multiple, persistent islet autoantibodies, type 1 diabetes, or both before 7 years of age. Am J Reprod Immunol 2011; 66:495-503. [PMID: 21819478 DOI: 10.1111/j.1600-0897.2011.01057.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
PROBLEM Increased levels of serum cytokines in early pregnancy may increase the risk of type 1 diabetes in the offspring. METHOD OF STUDY Early-pregnancy (between 10 and 16 gestational weeks) serum samples from non-diabetic index mothers (n = 48) of children who developed islet autoimmunity, type 1 diabetes, or both before 7 years of age were analyzed for IFN-γ, IL-10, IL-12, IL-13, IL-1β, IL-2, IL-4, IL-5, CXCL8, and TNF. Control mothers (n = 93) were matched for age, sampling date, and HLA-DQ genotypes. RESULTS IFN-γ (P = 0.02) and IL-1β (P = 0.04) were elevated in the index mothers. All cytokines except IL-4 were highly correlated (P < 0.0001). IFN-γ [OR 1.39 (1.04, 1.85), P = 0.026] and possibly IL-2 [OR 1.21 (0.99, 1.48), P = 0.057] in early pregnancy were associated with an increased risk of multiple, persistent islet autoantibodies, type 1 diabetes, or both before 7 years of age in the offspring. However, the statistical significance for IL-2 was lost in the logistic regression when adjusted for gestational length at delivery and parity. CONCLUSION Increased Th1 cytokine levels during early pregnancy might contribute to an increased risk of islet autoimmunity, type 1 diabetes, or both in the offspring.
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Affiliation(s)
- Sabina Resic Lindehammer
- Department of Clinical Sciences, Unit of Diabetes and Celiac Disease, Skåne University Hospital SUS, University of Lund, Malmö, Sweden.
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Lindehammer SR, Björck S, Lynch K, Brundin C, Marsal K, Agardh D, Fex M. Early human pregnancy serum cytokine levels predict autoimmunity in offspring. Autoimmunity 2011; 44:445-52. [DOI: 10.3109/08916934.2010.549530] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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15
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Seroconversion to islet autoantibodies between early pregnancy and delivery in non-diabetic mothers. J Reprod Immunol 2011; 88:72-9. [DOI: 10.1016/j.jri.2010.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 10/13/2010] [Accepted: 10/28/2010] [Indexed: 11/22/2022]
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16
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Dillner J, Arbyn M, Unger E, Dillner L. Monitoring of human papillomavirus vaccination. Clin Exp Immunol 2010; 163:17-25. [PMID: 21062269 DOI: 10.1111/j.1365-2249.2010.04268.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Persistent infection with oncogenic human papillomavirus (HPV) is a necessary causal factor in the development of cervical cancer. Moreover, HPV, predominately type 16 and to a lesser degree type 18, is linked causally to varying proportions of other anogenital cancers (vulva, vagina, penis, anus) as well as cancers elsewhere in the body (oropharynx, larynx, conjunctiva). HPV types 6 and 11 cause most of genital warts and recurrent respiratory papillomatosis. Effective prophylactic vaccines have been developed. In this review, we address briefly the immunological aspects of HPV infection and the results of HPV vaccination trials. Internationally standardized monitoring and evaluation of prophylactic HPV vaccination programmes will be essential for arriving at the most cost-effective strategies for cancer control.
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Affiliation(s)
- J Dillner
- WHO HPV LabNet Global Reference Laboratory at Department of Clinical Microbiology, University Hospital, Malmö,
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17
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Prevalence of human papillomavirus 16 and 18 neutralizing antibodies in prenatal women in British Columbia. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2009; 16:1840-3. [PMID: 19828766 DOI: 10.1128/cvi.00238-09] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Human papillomavirus (HPV) type 16 and 18 neutralizing antibody (NAb) titers were measured in 1,020 prenatal women in British Columbia aged 15 to 39. HPV 16 and 18 NAbs were detected in 183/1,020 (17.9%) and 97/1,020 (9.5%), respectively, and 39 (3.8%) had NAbs to both types. Titers were similar across age strata.
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18
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Fahey LM, Raff AB, Da Silva DM, Kast WM. Reversal of human papillomavirus-specific T cell immune suppression through TLR agonist treatment of Langerhans cells exposed to human papillomavirus type 16. THE JOURNAL OF IMMUNOLOGY 2009; 182:2919-28. [PMID: 19234187 DOI: 10.4049/jimmunol.0803645] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Human papillomavirus (HPV) type 16 infects the epithelial layer of cervical mucosa and is causally associated with the generation of cervical cancer. Langerhans cells (LC) are the resident APCs at the site of infection and therefore are responsible for initiating an immune response against HPV16. On the contrary, LC exposed to HPV16 do not induce a specific T cell immune response, which leads to the immune evasion of HPV16. Demonstrating that TLR7 and TLR8 are expressed on human LC, we hypothesized that imidazoquinolines would activate LC exposed to HPV16, leading to the induction of an HPV16-specific cell-mediated immune response. Surprisingly, both phenotypic and functional hallmarks of activation are not observed when LC are exposed to HPV16 virus-like particles and treated with imiquimod (TLR7 agonist). However, we found that LC are activated by 3M-002 (TLR8 agonist) and resiquimod (TLR8/7 agonist). LC exposed to HPV16 virus-like particles and subsequently treated with 3M-002 or resiquimod highly up-regulate surface activation markers, secrete proinflammatory cytokines and chemokines, induce CCL21-directed migration, and initiate an HPV16-specific CD8(+) T cell response. These data strongly indicate that 3M-002 and resiquimod are promising therapeutics for treatment of HPV infections and HPV-induced cervical lesions.
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Affiliation(s)
- Laura M Fahey
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA 90033, USA
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19
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Dickson NP, Ryding J, van Roode T, Paul C, Herbison P, Dillner J, Skegg DCG. Male circumcision and serologically determined human papillomavirus infection in a birth cohort. Cancer Epidemiol Biomarkers Prev 2009; 18:177-83. [PMID: 19124496 DOI: 10.1158/1055-9965.epi-08-0353] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Circumcision has been reported to protect against infection with human papillomavirus (HPV) in men, but results have been inconsistent. We followed males in a birth cohort born in Dunedin, New Zealand, in 1972 and 1973 from age 3 to 32 years. Seropositivity at age 32 years for the oncogenic types HPV-16 and 18, and the nononcogenic types 6 and 11, was studied in relation to maternal reports of circumcision status at age 3 for 450 men. Seropositivity to any of these types was associated with lifetime number of sexual partners (P = 0.03), and lower moral-religious emphasis of the family of origin (P < 0.001). Circumcision was not found to be protective, with the adjusted odds ratio (95% confidence interval) for HPV6/11/16/18 seropositivity among the circumcised compared with the uncircumcised being 1.4 (0.89-2.2).
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Affiliation(s)
- Nigel P Dickson
- Department of Preventive and Social Medicine, University of Otago Medical School, P.O. Box 913, Dunedin, New Zealand.
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