The epidemiology of anal human papillomavirus infection among women and men having sex with women

Sexual Health ◽  
2012 ◽  
Vol 9 (6) ◽  
pp. 538 ◽  
Author(s):  
Alan G. Nyitray
Keyword(s):  
Human Papillomavirus ◽  
Anal Canal ◽  
Hpv Vaccination ◽  
Epidemiological Data ◽  
Hpv Infection ◽  
Common Finding ◽  
Genotype Distribution ◽  
Anal Sex ◽  
Lifetime Number ◽  
Receptive Anal Sex

The goal of this review is to summarise epidemiological data that support an understanding of the natural history of anal human papillomavirus (HPV) among women and men having sex with women (MSW). HPV is a common infection of the anal canal among women and MSW. Although there have been a limited number of studies to date, both oncogenic and nononcogenic HPV genotypes commonly occur among these populations even when individuals do not report receptive anal sex. Genotype distribution is quite diverse, with recent studies typically detecting more than two dozen genotypes in the anal canal in samples of women and MSW. Factors most consistently associated with HPV in the anal canal among both women and MSW are lifetime number of sexual partners and detection of HPV at the genitals. The common finding of genotypic concordance between the genitals and anal canal in women and MSW, and the infectious nature of HPV, in addition to a limited number of studies offering empirical evidence of anal-to-genital self-inoculation and evidence of HPV hand carriage, may help explain the detection of HPV in the anal canal outside the context of receptive anal sex. HPV vaccination has been shown to reduce anal HPV infection among women and is also a promising prevention strategy among MSW.

Prevalence and risk factors of anogenital human papillomavirus infection in a community sample of men who have sex with men in Taiwan: baseline findings from a cohort study

2019 ◽  
Vol 96 (1) ◽  
pp. 62-66
Author(s):  
Carol Strong ◽  
Huachun Zou ◽  
Nai-Ying Ko ◽  
Ya-Lun Liang ◽  
Wen-Wei Ku ◽  
...  
Keyword(s):  
Risk Factors ◽  
Human Papillomavirus ◽  
Cost Effectiveness ◽  
Community Sample ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Sex Partners ◽  
Anal Sex ◽  
The Past ◽  
Sex With Men

ObjectivesMen who have sex with men (MSM) are a highly neglected population in the current recommendation of girls-only human papillomavirus (HPV) vaccination programmes in many countries. To better assess the cost effectiveness of HPV vaccination among men requires data on the prevalence of HPV infection in MSM using a community sample, which is still sparse in several regions. We examined the prevalence of and factors associated with anogenital HPV infection among MSM in Taiwan.MethodsMSM 20 years of age and older were recruited from the community and social media in Taiwan in 2015–2016 and screened for HPV infection to detect 37 genotypes. MSM were seen at baseline and were/will be seen at 6, 12, 24 and 36 months. Men completed a questionnaire regarding their sexual experiences. Multivariable regression analyses were conducted to identify associated behavioural risk factors using the baseline data.ResultsA total of 253 MSM were recruited; 87 % were below 35 years of age. Diagnosis of HIV was reported in 4% of men; just over 20% had three or more anal sex partners in the past year. The prevalence of any tested HPV type was 29.4% at the anal site and 11% at the penile site. One quarter of MSM were infected with any of the 9-valent vaccine HPV types. Anal HPV detection was associated with having three or more receptive anal sex partners in the past year (adjusted odds ratio (aOR)=2.92, 95% CI 1.29 to 6.61) and having older sex partners (aOR=2.51, 95% CI 1.07 to 5.90).ConclusionsOur data provide the base to calculate the reproductive rate for HPV transmission in a low-risk community sample and cost-effectiveness to include men in HPV vaccination policies. Adding evidence from a community sample adds comprehensiveness for future estimates of disease transmission and vaccine effectiveness.

scholarly journals Type-Specific Identification of Genital Human Papillomavirus Infection in Women with Cytological Abnormality

2016 ◽  
Vol 60 (3) ◽  
pp. 211-216
Author(s):  
Hernán Vargas ◽  
Jenny P. Sánchez ◽  
Mónica L. Guerrero ◽  
Leider T. Ortiz ◽  
Dayanne M. Rodríguez ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Pap Smear ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Epidemiological Surveillance ◽  
Molecular Technique ◽  
Genotype Distribution ◽  
Vaccination Programs ◽  
Hpv Dna ◽  
Cytological Abnormality

Objectives: To estimate the frequency of human papillomavirus (HPV) infection and the genotype distribution of HPV among women with a Pap smear showing atypical squamous cells of undetermined significance (ASC-US) attending the Program for the Detection and Control of Cervical Cancer in Bogotá, Colombia. Study Design: Cervical samples from 200 women with an ASC-US Pap smear were analyzed for the presence of HPV DNA and genotype distribution using a commercial molecular technique (Linear Array®; Roche Molecular Systems, USA). Results: HPV infection was found in 140 women (70%). High-risk HPV types were present in 46.4% of the samples; 16.4% showed a low-risk HPV type, and 37.1% showed both. Of the positive samples, 42.9% were infected with a single viral genotype, whereas 57.1% exhibited multiple HPV infections. The most common HPV genotypes were HPV 16, 53, and 52 with a prevalence of 26.4, 16.4, and 13.6%, respectively. Conclusion: The epidemiological characterization of HPV infections described in this study might guide actions for epidemiological surveillance to strengthen the program in Bogotá and to develop appropriate HPV vaccination programs.

scholarly journals Anal human papillomavirus infection and its relations with abnormal anal cytology among MSM with or without HIV infection in Japan

2021 ◽  
Author(s):  
Daisuke Shiojiri ◽  
Daisuke Mizushima ◽  
Misao Takano ◽  
Koji Watanabe ◽  
Naokatsu Ando ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
High Risk ◽  
Hiv Infection ◽  
Hpv Vaccination ◽  
Epidemiological Data ◽  
Hpv Infection ◽  
Abnormal Cytology ◽  
Hpv Genotypes ◽  
Anal Cytology ◽  
The Difference

Abstract Background Anorectal high-risk human papillomavirus (hr-HPV) infection is associated with anal malignancies. However, the epidemiological data is quite limited in Japan. Methods Anorectal swab was obtained from HIV-infected and –uninfected men who have sex with men (MSM). Only high-risk HPV genotypes were examined by the Hybrid Capture-based methodology. Anal cytology was determined by the modification of the Bethesda System classification. Results In total, 644 participants were included. No participant had history of HPV vaccination at inclusion. The overall prevalence of hr-HPV was 58.5% (95% confidence interval: 54.7-62.3). The most frequently detected hr-HPV genotypes in order were HPV-52, -16, and -58. Among the HPV infected subjects, 82.8% (312/377) were infected with at least one of the 9 valent vaccine covered genotypes. Incidence of abnormal cytology was positively correlated with the number of HPV genotypes infected rather than the difference in genotypes. Multivariate analysis identified the number of detected hr-HPV genotypes as well as HIV-infection were the independent risk factors for pre-cancer. Conclusion Nine valent vaccine preventable HPVs are currently prevalent among MSM in Japan. Also, increased numbers of hr-HPV genotypes were strongly associated with anorectal pre-cancer. Universal HPV vaccination should be considered for Japanese MSM.

scholarly journals Anal human papillomavirus infection and its relationship with abnormal anal cytology among MSM with or without HIV infection in Japan

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Daisuke Shiojiri ◽  
Daisuke Mizushima ◽  
Misao Takano ◽  
Koji Watanabe ◽  
Naokatsu Ando ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Hiv Infection ◽  
Hpv Vaccination ◽  
Epidemiological Data ◽  
Hpv Infection ◽  
Exclusion Criterion ◽  
Abnormal Cytology ◽  
Papillomavirus Infection ◽  
Hpv Genotypes ◽  
History Of

AbstractAnal high-risk human papillomavirus (hr-HPV) infection is widely considered a cause of anal cancer. However, epidemiological data are quite limited in Japan. This study investigated anal HPV infections and cytological abnormalities among MSM with or without HIV infection. Anal swabs were obtained, and cytological results were examined. Hybrid capture-based methodology was used for hr-HPV genotyping. The exclusion criterion was a history of vaccination against HPV. 644 subjects participated, and the overall prevalence of hr-HPV was 59.7% (95% CI 54.7–62.3), HIV-infected had higher prevalence than HIV-uninfected (68.9% vs 40.6%) p < .001. Among hr-HPV-infected participants, 82.8% (312/377) were infected with at least one of 9 valent vaccine-covered hr-HPV genotypes. From regression analysis, detection of abnormal cytology correlated positively with HIV infection (OR 2.17 [95% CI 1.51–3.13]), number of hr-HPV genotypes infected (OR 1.83 [1.59–2.10]), history of STI (OR 1.58 [1.14–2.22]) and No. of lifetime sexual partners (OR 1.56 [1.10–2.21]), albeit multivariate analysis identified the number of detected hr-HPV genotypes (adjusted OR 1.78 [1.54–2.06]) as the independent risk factor for abnormal cytology. High rates of anal hr-HPV infection, especially 9-valent HPV vaccine-preventable hr-HPV were detected among our MSM participants in Japan. HPV vaccination should also be encouraged for MSM in Japan.

scholarly journals Prevalence and Genotype Distribution of Human Papillomavirus in Invasive Cervical Cancer, Cervical Intraepithelial Neoplasia, and Asymptomatic Women in Southeast China

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Xuelian Wang ◽  
Yanli Zeng ◽  
Xiumin Huang ◽  
Youzhong Zhang
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Hpv Vaccination ◽  
Invasive Cervical Cancer ◽  
Hpv Infection ◽  
Geographic Region ◽  
Effective Control ◽  
Genotype Distribution ◽  
Southeast China ◽  
Hpv Genotypes

Cervical cancer is one of the leading causes of cancer-related deaths among women and it is caused by the human papillomavirus (HPV). High variation has been reported in the attribution of specific HPV genotypes to cervical neoplasia among various geographic regions. For effective control of cervical cancer through HPV vaccination, it is essential to estimate the cost-effectiveness of vaccination, to monitor the potential transition into other HPV genotypes, and to understand the distribution of specific HPV genotypes across a specific geographic region. In this study, the distribution of HPV genotypes was investigated in southeast China, from 2011 to 2016. The 12,816 cervical swabs collected from women (age 18–78 years, median 43.6 years) outpatients were analyzed. HPV prevalence among 12,816 cervical swabs analyzed was 22.3% (2,856/12,816). Among these positive cases, 2,216 had only one HPV genotype while 640 had multiple HPV genotypes. The cases with multiple types revealed 23 different HPV genotypes with the five most prevalent being HPV18 (18.2%), HPV52 (14.1%), HPV16 (11.9%), HPV58 (10.6%), and HPV33 (5.5%). The rates of HPV infection in patients with cervical inflammation, CIN-1, CIN-2, CIN-3, squamous carcinoma, and adenocarcinoma were 38.4%, 80.5%, 82.6%, 92.3%, 97.5%, and 93.4%, respectively. Four HPV genotypes, HPV18, HPV16, HPV52, and HPV58, were more prevalent in patients with CIN-2-CIN-3 and invasive cervical cancer. A comparison of HPV genotypes attribution to cervical cancer between southeast China and global incidences revealed distinct differences. Due to this unique prevalence, it is essential to streamline the vaccination development protocol prior to administering vaccines based on global data.

scholarly journals Prevalence and genotype distribution of human papillomavirus in Czech non-vaccinated heterosexual couples

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Hana Jaworek ◽  
Vladimira Koudelakova ◽  
Ivana Oborna ◽  
Blazena Zborilova ◽  
Jana Brezinova ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Fisher Exact Test ◽  
Genotype Distribution ◽  
Heterosexual Couples ◽  
Anatomic Site ◽  
Hpv Dna ◽  
Hpv Test ◽  
Penile Swabs

Abstract Background Data about the genotype-specific human papillomavirus (HPV) prevalence in the Czech Republic is limited. We aimed to evaluate the prevalence and concordance of genotype-specific HPV infection detected in semen samples, penile swabs and cervical swabs from non-vaccinated heterosexual couples without HPV-associated disease. Methods Semen samples and penile swabs were collected from male partners and cervical swabs were collected from female partners of heterosexual couples treated for infertility (n = 195). Presence of HPV DNA in semen samples and cervical swabs was analyzed using the cobas® HPV Test and PapilloCheck®. Only the PapilloCheck® test was used to detect HPV in penile swabs. The genotype-specific prevalence and concordance of HPV infection not targeted by vaccine were evaluated using Fisher exact test. Results Both partners were infected with any HPV type in 13.8% (27/195) of couples and, of these couples, 55.6% (15/27) harbored at least one mutual genotype. High-risk HPV (hrHPV) genotypes were detected in 12.3% (24/195) of semen samples, 31.3% (61/195) of penile swabs, and 19.5% (38/195) of cervical swabs (P < 0.001). The most prevalent hrHPV genotype were HPV53 (2.56%; 5/195) in semen samples, HPV16 (6.67%, 13/195) in penile swabs and HPV39 (3.59%, 7/195) in cervical swabs. Low-risk (lrHPV) genotypes were detected in 5.13% (10/195) of semen samples, 15.9% (31/195) of penile swabs, and 4.10% (8/195) of cervical swabs (P < 0.001). Male sexual partners of HPV-positive women were more likely to be infected with at least one of the same HPV types than female sexual partners of HPV-positive men (34.9% vs. 17.9%, P = 0.055). Conclusions This study showed that the detection of HPV infection differ by anatomic site and gender. Regardless the anatomic site, high prevalence of HPV genital infection was found in both Czech men and women.

scholarly journals Human papillomavirus-driven immune deviation: challenge and novel opportunity for immunotherapy

2017 ◽  
Vol 5 (3) ◽  
pp. 69-82 ◽  
Author(s):  
Sigrun Smola ◽  
Connie Trimble ◽  
Peter L. Stern
Keyword(s):  
Human Papillomavirus ◽  
Immune System ◽  
Immune Escape ◽  
Hpv Vaccination ◽  
Suppressor Cells ◽  
Clinical Problem ◽  
Hpv Infection ◽  
Treatment Protocols ◽  
Increased Risk ◽  
Risk Of Cancer

It is now recognized that the immune system can be a key component of restraint and control during the neoplastic process. Human papillomavirus (HPV)-associated cancers of the anogenital tract and oropharynx represent a significant clinical problem but there is a clear opportunity for immune targeting of the viral oncogene expression that drives cancer development. However, high-risk HPV infection of the target epithelium and the expression of the E6/E7 oncogenes can lead to early compromise of the innate immune system (loss of antigen-presenting cells) facilitating viral persistence and increased risk of cancer. In these circumstances, a succession of interacting and self-reinforcing events mediated through modulation of different immune receptors, chemokine and cytokine responses (CCL20; CCL2; CCR2; IL-6; CCR7; IL-12) further promote the generation of an immune suppressive microenvironment [increased levels of Tregs, Th17, myeloid-derived suppressor cells (MDSCs) and PD-L1]. The overexpression of E6/E7 expression also compromises the ability to repair cellular DNA, leading to genomic instability, with the acquisition of genetic changes providing for the selection of advantaged cancer cells including additional strategies for immune escape. Therapeutic vaccines targeting the HPV oncogenes have shown some encouraging success in some recent early-phase clinical trials tested in patients with HPV-associated high-grade anogenital lesions. A significant hurdle to success in more advanced disease will be the local and systemic immune suppressive factors. Interventions targeting the different immunosuppressive components can provide opportunity to release existing or generate new and effective antitumour immunity. Treatments that alter the protumour inflammatory environment including toll-like receptor stimulation, inhibition of IL-6-related pathways, immune-checkpoint inhibition, direct modulation of MDSCs, Tregs and macrophages could all be useful in combination with therapeutic HPV vaccination. Future progress in delivering successful immunotherapy will depend on the configuration of treatment protocols in an insightful and timely combination.

Prevalence of human papillomavirus by geographical regions, sexual orientation and HIV status in China: a systematic review and meta-analysis

2018 ◽  
Vol 94 (6) ◽  
pp. 434-442 ◽  
Author(s):  
Xiaomeng Ma ◽  
Qian Wang ◽  
Jason J Ong ◽  
Christopher K Fairley ◽  
Shu Su ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Meta Analysis ◽  
Hpv Vaccination ◽  
Hpv Infection ◽  
Central China ◽  
Hiv Positive ◽  
Heterosexual Men ◽  
Hpv Prevalence

ObjectiveHuman papillomavirus (HPV) infection causes multiple cancers in both women and men. In China, both HPV vaccination and cervical cancer screening coverages are low. We aim to investigate the temporal and geographical trends of HPV DNA prevalence in heterosexual men, women, men who have sex with men (MSM) and people living with HIV (PLHIV) in China.MethodsWe conducted a systematic review, collecting publications in PubMed, Web of Science, China National Knowledge Infrastructure (CNKI) and Wanfang Data from January 2000 to May 2017. A total of 247 studies were selected for this meta-analysis to estimate pooled HPV prevalence, incidence of cervical cancer and risk of infection for subgroups. Meta-regression was applied to identify contributing factors to prevalence heterogeneities.ResultsThe national HPV prevalence was 15.6% (95% CI (14.4% to 16.9%)) in women with normal cervical cytology, and Central China had the highest prevalence (20.5% (15.2% to 25.8%)). HPV prevalence in heterosexual men (14.5% (11.3% to 17.7%)) was comparable with that of women (OR=1.09 (0.98 to 1.17)), but HPV prevalence in MSM (59.9% (52.2% to 67.6%)) was significantly higher than that in heterosexual men (OR=8.81 (8.01 to 9.69)). HIV-positive women (45.0% (38.4% to 51.6%)) and HIV-positive MSM (87.5% (82.3% to 90.9%)) had 4.67 (3.61 to 6.03) and 6.46 (5.20 to 8.02) times higher risk of HPV infection than their HIV negative counterparts.ConclusionHPV infection is prevalent in China, particularly in Central China, in comparison with the global level and neighbouring countries. Targeted HPV vaccination for women, MSM and PLHIV and scale-up of cervical screening for women are priorities in curbing the HPV epidemic in China.

scholarly journals Human papillomavirus vaccination coverage among working women

2021 ◽  
Vol 6 (4) ◽  
pp. 714-722
Author(s):  
Sajeda Khatun ◽  
Ashees Kumar Saha ◽  
Irtiza Ahmed Chowdhury ◽  
Arifa Sultana ◽  
Mst Wazeda Begum ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Vaccination Coverage ◽  
Hpv Vaccination ◽  
Working Women ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
P Value ◽  
Human Papillomavirus Vaccination ◽  
Cross Sectional

Human papillomavirus (HPV) infection is one of the causes of cervical cancer which is preventable. The study was a cross-sectional study with the objective was to determine the Human papillomavirus (HPV) vaccination coverage among working women. A total 236 educated working women were selected purposively from different working places in Dhaka city. A pretested semi- structured questionnaire was used for data collection. The knowledge was assessed by using modified Blooms cut off points which was developed with cervical cancer and vaccine knowledge related questions. The study result revealed that among 236 working women 71.2% knew about the risk factor of cervical cancer. It was found that 92.8% knew about the way of prevention of cervical cancer respectively. The overall knowledge on cervical cancer and vaccine was found to be having good knowledge 21.2%, satisfactory knowledge 41.9% and poor knowledge 36.9%. Out of the total working women only 5.1% had HPV vaccination coverage. Reason behind non vaccinations, 50% mentioned had no knowledge about vaccine, 35.3% mentioned can’t decide and 8.9% mentioned high cost of vaccine. Significant association has been observed in between vaccination coverage with over all knowledge of cervical cancer (p value .04). It may be concluded that HPV vaccination coverage is very low which needs awareness program on this issues through mass media, educational session, counseling and so on to reduce human papillomavirus associated cancers as well as economic burden. Asian J. Med. Biol. Res. December 2020, 6(4): 714-722

scholarly journals Distribution and Prevalence of High-Risk Human Papillomavirus Genotypes in Cervical Specimens

2020 ◽  
Vol 25 (3) ◽  
pp. 325-331
Author(s):  
Erkan Özmen ◽  
Ülkü Altoparlak ◽  
Muhammet Hamidullah Uyanık ◽  
Abdulkadir Gülen
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Age Groups ◽  
Hpv Infection ◽  
High Rate ◽  
Genotype Distribution ◽  
Hpv Dna ◽  
Hpv Test ◽  
Significant Difference ◽  
Hpv Types

Introduction: Human papillomavirus (HPV) is frequently a sexually transmitted virus and can cause cervical cancer in women. Cervical cancer is the second most common type of cancer among the developing countries. In this study, cervical HPV DNA positivity and genotype distributions were investigated in female patients living in our region and the results were compared with different studies. Materials and Methods: Between 1 July, 2017 and 1 March, 2019, 433 cervical swabs were sent to Ataturk University, Medical Faculty Hospital, Medical Microbiology Laboratory due to suspicion of HPV. Swab samples were evaluated for HPV virus using molecular (Polymerase Chain Reaction-PCR) methods. For this purpose, Xpert HPV Test (Cepheid, Inc, Sunnyvale, CA) was used to identify HPV types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68 t in a single sample. Results: Mean age of the patients ranged from 20 to 69 years, with a mean of 39.8 years (± 10.0). Positivity was detected in 62 of the 433 patients. Mean age of the positive patients was 40.2 years (± 11.3). When the positive patients were examined in terms of HPV types, the presence of HPV 16 was observed with a rate of 25.6%, while the HPV 18/45 types were found to be 9.0% in total. When patients were evaluated according to age groups, HPV DNA positivity was highest in the 25-34 age group with 38.7%. In our statistical study, there was no significant difference in HPV DNA positivity rate between the ages of 35 and under 35 years. Conclusion: This study demonstrates the prevalence and viral genotype distribution of HPV infection in women in Erzurum region. HPV type 16 is seen with a high rate in our region.

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