Journal of Infection and Public Health

Incidence, persistence and clearance of cervical human papillomavirus among women in Guangdong, China 2007–2018: A retrospective cohort study

Previous studies showed the incidence, persistence and clearance of cervical human papillomavirus (HPV) among women varies from regions. There is no study on dynamic changes of HPV infection among women in Guangdong. It is a retrospective cohort study that included gynecological outpatients aged ≥15 years and retested for HPV within 24 months in Guangdong Women and Children Hospital to estimate HPV incidence, persistence and clearance. Outcomes were estimated through the proportion of HPV incidence, persistence and clearance in HPV-negative or HPV-positive women. Moreover, we examined HPV incidence, persistence and clearance among women who retested in four calendar periods: 0-6, 6-12, 12-18, 18-24 months after the first test. 33,328 gynecological outpatients were included in our study. Incidence rates of any HPV, high-risk (HR) HPV and low-risk (LR) HPV were 10.58%, 8.68% and 4.83%. The most common incident HR HPV were HPV52 (2.69%), HPV16 (1.23%) and HPV58 (1.23%). Persistence rates of any HPV, HR HPV and LR HPV were 47.55%, 42.77% and 33.88%. HPV52 (42.33%), HPV58 (40.74%) and HPV68 (32.36%) were commonly found persistent types. And clearance rates of any HPV, HR HPV and LR HPV were 52.44%, 57.23% and 66.12%.The lowest clearance rates were observed for HPV52 (57.67%), HPV68 (67.64%) and HPV39 (68.56%). HPV incidence and persistence were higher among women aged 15-19 years and ≥55 years. HPV incidence and persistence were found higher among women who retested within 6 months than others in other periods. HPV52, 58, 68, and 39 were the more likely to cause incident and persistent infection, and less likely to be cleared among women in Guangdong. HPV incidence and persistent infection were higher among women aged both younger and older women compared to middle aged women. HPV retesting period may impact the detection of HPV incidence, persistence and clearance.

Women’s perceptions and preferences toward HPV self-sampling in France: A questionnaire within the French CapU4 Trial

Despite organised screening efforts since 2018 targeting under-screened women, cervical cancer (CC) screening coverage remains moderate (60 %) in France. The target age for HPV-based screening is women aged 30-65. Vaginal self-sampling (VSS) has recently been introduced for women who have not been screened. This study assesses women's perceptions and preferences toward HPV self-sampling among women enrolled in the CapU4 trial. CapU4 is a randomised controlled trial with two experimental arms (mailing either a urine self-sampling (USS) or VSS kit) and a control arm (mailing of a conventional invitation letter). The trial invited 15,000 women aged 30-65, who had no screening test recorded since more than four years and who did not respond to an invitation letter within 12 months before. Half of the women in each arm were randomly selected to receive a supplementary questionnaire (sent in March 2023, with responses collected until August 2023). In total, 682 completed questionnaires were analysed (9.1 % response rate). Most women found self-sampling instructions clear (VSS 87.4 %, USS 90.7 %) and procedures easy (VSS 85.9 %, USS 90.3 %). About 23.5 % of VSS users and 4.9 % of USS users found the process unpleasant. Around 80 % of participants in both SS arms preferred taking a specimen at home rather than going to a health care professional for cervical screening. They also indicated a preference for using self-sampling kit to collect a sample for their next CC screening instead of visiting a health care professional (VSS 82.6 %, USS 89.1 %). Self-sampling appears to be a well-received alternative in women not attending routine CC screening programme.

Human papillomavirus vaccination and Pap test uptake, awareness, and barriers among young adults in Gulf Cooperation Council countries: A comparative cross-sectional survey

Human papillomavirus (HPV) vaccination and Pap tests are recognized as effective preventive measures to reduce the incidence of HPV-related diseases among young adults. The objective of this study was to assess HPV vaccination and Pap test uptake, awareness, and barriers among young adults in the Gulf Cooperation Council (GCC) countries, including Bahrain, Kuwait, Oman, Qatar, the Kingdom of Saudi Arabia (KSA), and the United Arab Emirates (UAE). A comparative cross-sectional study was conducted from January to April 2024, involving 831 young adults aged 18-39 residing in GCC countries. The main outcome measures were HPV vaccination and Pap test uptake rates, awareness of the HPV vaccine and Pap testing, and barriers to vaccination. Data were collected using online platforms. The Chi-square test and Fisher's exact test were used for data analysis. The UAE had the highest vaccination rate at 18.9% (50/264), followed by Qatar at 5.8% (6/104), and KSA at 4.6% (10/216), p < 0.001. Individuals with health insurance had higher vaccination rates than those without (11% vs. 5.4%, p = 0.006). Awareness of the HPV vaccine was highest in the UAE (49.6%) and KSA (58.8%), while awareness of Pap smear testing among females was similarly high in these countries (62.4% and 65.9%, respectively). However, actual Pap smear testing rates were highest in Bahrain (15.9%) and Qatar (13.4%). The main barriers to vaccination cited by participants were lack of knowledge (53.6%) and the absence of medical recommendations (13.2%). The study's findings suggest the need of targeted educational campaigns to increase HPV vaccine uptake among both genders and Pap test participation among females. Additionally, incorporating HPV screening and vaccination into routine national programs in GCC countries and emphasising the crucial role of healthcare providers in influencing vaccination decisions are recommended strategies.

Recurrent cytologic inflammation on cervical smear and risk of low-grade cervical abnormalities in cytology-based screening: A 25-year multicenter cohort study from HPV-resource–limited settings

Cytologic inflammation is a common finding in cervical screening, yet its clinical significance remains uncertain, particularly in settings where human papillomavirus (HPV) testing is not routinely available. We examined whether recurrent inflammatory findings on Papanicolaou (Pap) smears predict subsequent cervical abnormalities in a cytology-based screening context. We conducted a 25-year multicenter hospital-based cohort study including 21,574 women who underwent at least three consecutive Pap smears between 1997 and 2021 at three teaching hospitals in Taiwan. The number of baseline smears showing inflammation was defined as the exposure. Subsequent cytologic outcomes (ASC-US, ASC-H, LSIL, HSIL+) and histologic outcomes (CIN1 and CIN2 +) were identified from hospital registries. Adjusted hazard ratios (HRs) were estimated using Cox proportional hazards models. Women with any cytologic inflammation had significantly higher risks of subsequent cytologic abnormalities, including ASC-US and ASC-H (HR = 1.61, 95% CI 1.27-2.04), LSIL (HR = 1.64, 95% CI 1.06-2.54), as well as histologic CIN1 (HR = 1.50, 95% CI 1.07-2.10). The risk was greatest among those with recurrent inflammation (≥2 findings), with HRs of 2.24 (95% CI 1.68-2.99) for cytologic ASC-US and ASC-H, 1.81 (95% CI 1.03-3.18) for cytologic LSIL, and 1.94 (95% CI 1.27-2.97) for histologic CIN1. No significant association was observed for cytologic HSIL+ or histologic CIN2 + . Recurrent cytologic inflammation was associated with an increased risk of low-grade but not high-grade cervical lesions. These findings suggest that repeated inflammatory cytology reflects a state of cervical epithelial instability or infection-related alteration rather than direct oncogenic progression. In cytology-dominant screening settings prior to widespread HPV DNA-based screening, inflammatory findings may provide contextual information for interpreting patterns of low-grade abnormality detection and highlight the importance of structured screening frameworks during periods of screening transition.

Natural and synthetic drugs and formulations for intravaginal HPV clearance

Except for a few preventative Human Papillomavirus (HPV) vaccines, there is currently no cure for HPV infection. There are a number of cutting-edge strategies and potent medications or herbal formulations that can be applied topically for early clearance of HPV infection before HPV DNA gets integrated into host cell genome. This is facilitated due to cervical cancer having distinct and well-recognized long precancerous stages. This review aims to outline every possible medication and formulation, both natural and synthetic, that can be applied topically as intravaginal application to help remove HPV infection at an early precancerous stage. Several anti-HPV/HPV clearance compounds and formulations for high-grade lesions are undergoing clinical trials. However, the majority of compounds are still in the early stages of development and require additional research to become viable HPV clearance candidates. Synthetic drugs may be more promising because they may have a more targeted effect; however, they may also have significant adverse effects. On the other hand, natural medications are safer to use. They are less specific, but have minimal to no adverse effects. This article may serve as a valuable resource of information for managing and preventing precancerous carcinogenic HPV infections. Research could be directed toward developing candidate drugs to make evidence-based decisions about advancing them to clinical trials and, eventually, to the market for potential use in the prevention and control of cervical cancer, which is almost always preventable or even curable if detected early.

HPV vaccination: A key strategy for preventing cervical cancer

Evaluating the performance of three different cervical cancer screening modalities in a large prospective population-based cohort

This study aimed to evaluate three different patterns of cervical cancer screening strategies for detection of cervical diseases. In total, 10,186 women aged 21-70 years attending cervical screening program were recruited and cotested by human papillomavirus (HPV) assays and cytology. Three-year histological follow-up data was recorded on women with abnormal screening results, and six clinically common screening algorithms were evaluated. Significantly better protection against cervical intraepithelial neoplasia 2 or worse (CIN2+) at three-year follow-up was associated with a negative HPV result than by normal cytology at baseline. HPV screening was more sensitive and less specific than cytology screening. Moreover, HPV screening with HPV16/18 and reflex cytology (atypical squamous cells of undetermined significance [ASCUS] threshold) showed a similar sensitivity (94.6% vs. 98.2%, p = 0.125) and a superior specificity as compared to cotesting reflex HPV16/18 and cytology (ASCUS threshold) for CIN2+ (95.8% vs. 95.1%, p < 0.0001), achieving a colposcopy referral rate of 5.4%, and consuming 4.8 colposcopies and 4.4 cytology tests to find one CIN2+. HPV screening with triage of HPV-positive women by HPV16/18 genotyping and cytology provided a good equilibrium between screening effectiveness, the number of cytology tests required, and referral rates; HPV testing was similar in sensitivity to cotesting and safer than cytology, thus especially suitable for large population-based screening programs.

An on-going study of three different cervical cancer screening strategies based on primary healthcare facilities in Beijing China

To evaluate and compare the results of three different cervical cancer screening strategies including cytology screening, HR-HPV screening which taking HR-HPV testing as primary test and co-testing which taking both tests at the same time, then provide evidence to explore whether the cervical cancer screening can be conducted in community healthcare centers in Beijing. 182,119 women aged between 35 and 64, who were screened in the primary healthcare facilities of nine districts in Beijing from January 2014 to March 2015, were enrolled in this study. Cytology screening was performed in participants during January 2014 and December 2014 as a conventional arm. HR-HPV screening strategy and co-testing were randomly allocated to participants on districts level as experimental arm 1 and 2 during January 2015 and March 2015. Cervical Intraepithelial Neoplasia grade 2 or worse (CIN 2+) was defined as endpoint. The screening results and costs to detect a case of three strategies were calculated. The positivity rate, colposcopy referral rate and biopsy referral rate of co-testing were 8.46%, 6.36% and 4.65% respectively, which were all significantly higher than the other two screening strategies. The detection rate of CIN 2+ by co-testing was 5.06‰ and was much more than the other two screening strategies, while the HR-HPV screening had the highest PPV of 14.40%. The HR-HPV screening ignores some lesion which can be found by co-testing. Co-testing refers a woman to colposcopy with a positive screening result at the least cost, but it costs the most to detect a CIN 2+ case. To detect more cases of CIN 2+, co-testing performs better although with the most cost. And the primary healthcare facilities in Beijing have the capability to carry out the cervical cancer screen programs and prompts women with positive screen results to the hospital.

Concentrated urine as an alternative to cervical smear samples enabling easy screening of HPV in large populations

Human Papillomavirus (HPV) infection is a leading cause of cervical cancer, necessitating effective screening methods, particularly in large populations and resource limited settings. Current cervical smear-based screening faces challenges related to accessibility, invasiveness, and patient compliance. This study investigated the feasibility of using concentrated urine samples as a noninvasive alternative for HPV detection. First-void urine samples from 126 patients were collected alongside cervical swabs. A biological fluid concentrator, MyMagiCon®, was used to concentrate the urine samples before HPV detection via RT-PCR. The results demonstrated substantial agreement (Fleiss' kappa = 0.796, p < 0.0001) between HPV detection in concentrated urine samples and cervical smear samples. Concentrated urine samples showed a 17 % increase in HPV detection compared to unconcentrated urine. This noninvasive and novel approach offers significant advantages in terms of accessibility and patient acceptance, potentially improving screening coverage and early detection rates, especially in underserved populations. Further research is needed to validate these findings in larger, more diverse populations and optimize the methodology for enhanced sensitivity and specificity, but the findings suggest concentrated urine-based HPV testing holds considerable promise as a cost-effective, accessible screening strategy in preventing cervical cancer.

Knowledge of cervical cancer, human papillomavirus (HPV), and acceptance of the HPV vaccine among parents of daughters in Riyadh, Saudi Arabia

Cervical cancer is the eighth most prevalent cancer among women nationwide, with 358 new cases reported annually. One of the strategies to prevent it is getting vaccinated against the human papillomavirus (HPV), the leading cause of this cancer. A survey-based cross-sectional study was conducted in Riyadh, Saudi Arabia, to evaluate the acceptance of the HPV vaccine among parents of daughters and their knowledge of three domains: cervical cancer, HPV, and the HPV vaccine. 390 parents participated in the study, with 88.2% female, 39.74% of the participants aged between 36-62 years old, and 62.56% holding a bachelor's degree or above. Parents were more aware of cervical cancer (78.97%), followed by HPV (50%) and the HPV vaccine (41.28%). Awareness levels about cervical cancer were significantly different among males and females, while awareness of HPV and the HPV vaccine was significantly associated with parents' education levels. For instance, parents with a bachelor's degree or higher (54.9%) demonstrated greater awareness of HPV compared to parents with a high school diploma (41.9%) or a middle school diploma or less (41.5%). The overall participants' knowledge scores in all three domains were poor, with an average below 50%. 60% of parents believed their daughters should receive the HPV vaccine. More than half of the study participants are willing to vaccinate their daughters with the HPV vaccine despite their poor knowledge of the assessed domains. Awareness levels of HPV and the HPV vaccine are associated with education levels. We believe raising awareness among parents is necessary to improve the acceptance level of the HPV vaccine.

Prevalence and characteristics of cervical human papillomavirus genotypes and cervical lesions among 58630 women from Guangzhou, China

To assess the prevalence and characteristics of human papillomavirus (HPV) genotypes and its associated cervical lesions in Guangzhou, China, which may be useful for adjusting area-specific cervical cancer prevention and control strategies. A total of 58630 women were enrolled. Cervical specimens were collected for HPV DNA testing and/or cervical cytology. Patients with visible cervical lesions or abnormal screening results underwent further cervical biopsies. The overall HPV positive rate was 14.07%. The top five genotypes in Guangzhou were HPV 52 (3.06%), HPV 16 (2.28%), HPV 58 (1.80%), HPV 51 (1.32%), and HPV 39 (1.15%). The prevalence of overall HPV and vaccine-targeted HPV genotypes showed a significantly decreasing trend from 2016 to 2019 (P  59 y age group. Among HPV-positive women, the proportions of HSIL and cervical cancer increased significantly with age (P  59 y age group, 9.35% HPV-positive cases were diagnosed as cervical cancer. HPV 16/18 was the most common cause of cervical cancer. While, the percentage of non-HPV 16/18 infection among cervical cancer patients increased over time, from 15.21% in 2015 to 26.32% in 2019 (P = 0.010). Besides that, the prevalence of non-HPV 16/18 genotypes among cervical cancer patients significantly increased with age, which peaked at the > 59 y age group (P = 0.014). Although the prevalence of any HPV and vaccine-targeted HPV genotypes decreased significantly with time, it is still important to follow the HPV genotypes and their associated cancer risk after the large-scale popularization of HPV vaccine. And age should be taken into consideration in screening strategies and risk-based management of cervical cancer in Guangzhou.

Risk assessment of careHPV testing for the detection of cervical precancerous lesions: 5-year follow-up of a screening program in China

CareHPV is a highly promising screening HPV assay that functions as a simplified and rapid point-of-care test, making it particularly well-suited for low-resource areas. It exhibits high sensitivity for detecting cervical precancerous lesions in cross-sectional study design. However, there is still limited evidence on the long-term protection of careHPV testing in the practical setting. A government-led cervical cancer screening program was implemented in Ordos City, China, specifically targeting female residents aged 35-64 years since 2016. CareHPV specimens were collected and visual inspection with acetic acid and Lugol iodine (VIA/VILI) was performed in the baseline screening. Women who were HPV-positive or VIA/VILI-suspected cancer at baseline were invited for a one-year follow-up screening. At the same time, those who were HPV-negative were scheduled for a 5-year rescreening. Women diagnosed with cervical intra-epithelial neoplasia grade 2 or worse (CIN2+) would be referred to clinical treatment as per the clinical guidelines. The current study includes participants who had valid baseline screening results and attended follow-ups with valid careHPV results conducted between January 2017 and December 2021, aiming to assess the long-term risk stratification for careHPV. Cumulative incidence rate (CIRs) and hazard ratio (HRs) for CIN2+ were calculated, using survival analysis. Among the 179,306 women enrolled in the baseline screening between 2016 and 2020, 12.60 % tested positive for careHPV, with 657 cases of CIN2+ identified. The final analysis included 18,562 women in our study, of whom 58.54 % were careHPV-positive at baseline. The final analysis consisted of 17,905 women who underwent screening between 2016 and 2020 and attended follow-ups from 2017 to 2021, with valid HPV results, and 657 women who identified as CIN2+ at the baseline. The 5-year CIRs were 0.003 and 0.101 among women who tested negative and positive for baseline careHPV, respectively. The 5-year CIRs for developing CIN2+ during follow-ups were 0.009, 0.009, and 0.11 for the groups of women who transitioned from careHPV-negative to positive (831, 4.64 %), careHPV-positive to negative (6688, 37.35 %), and maintained a stable positive careHPV status (3535, 19.74 %), respectively. Our findings support the long-term safety and protection of careHPV testing in 5-year follow-ups of screening programs. CareHPV represents a viable option for regions with limited healthcare resources.

Peritoneal tuberculosis impersonating ovarian malignancy: A case series from a high tuberculosis burden country

An uncommon form of extrapulmonary tuberculosis is abdominal tuberculosis (TB). Due to its vague symptoms, abdominal TB remains difficult to diagnose. We report three cases of peritoneal TB with abdominal enlargement in Bandung, Indonesia, which were initially misdiagnosed as ovarian carcinoma and treated with biopsy and laparotomy. To avoid unnecessary invasive procedures that pose risks to patients, we assess the need for a diagnostic strategy to differentiate between ovarian cancer and abdominal TB based on our experiences and existing literature. Peritoneal TB closely mimics ovarian cancer in clinical presentation, imaging findings, and tumor marker profiles. Elevated CA-125 and ascitic fluid analysis may mislead clinicians, especially in resource-limited settings. To prevent misdiagnosis, careful diagnostic procedures should be undertaken.

Preliminary outcomes of the Cervical Cancer Screening Program of Northern Portugal: A snapshot

Cervical cancer screening remains an essential preventive tool worldwide. First line high-risk Human Papillomavirus (HrHPV) genotyping became gold standard for cervical cancer screening, and has been adopted by several countries, including Portugal. Herein, we aimed to assess the early outcomes of the regional Cervical Cancer Screening Program of Northern Portugal. The analysis of a representative set of cases evaluated during a one-month period (January 2020), with adequate follow-up was performed. Descriptive analysis was performed. Overall, 7278 samples were received, of which 15.2% were HrHPV positive, most of these disclosing a negative result in subsequent liquid-based cytology. Nearly half of the HrHPV-positive women were referred to colposcopy. Within this group, HPV16/18 Our study confirmed the reliability and effectiveness of first line HrHPV genotyping in the Cervical Cancer Screening Program of Northern Portugal. Nonetheless, it also raised concerns about excessive referral to colposcopy, with the inherent human and financial costs. Thus, further improvement and optimization are key to ensure the sustainability of the program.

Human papillomavirus epidemiology in populations with normal or abnormal cervical cytology or cervical cancer in the Middle East and North Africa: A systematic review and meta-analysis

Human papillomavirus (HPV), one of the most common sexually transmitted viral infections worldwide, is the leading cause of cervical cancer. In Middle East and North Africa (MENA) Region HPV data is at scarce, and most of the countries haven't implemented any vaccination programs. This present meta-analysis and systematic review aimed to describe human papillomavirus (HPV) epidemiology by clinical subgroups in the (MENA) region. Studies assessing HPV prevalence rates were systematically reviewed, and the selected articles were reported following the PRISMA guideline. Random-effects meta-analyses and meta-regression were used to estimate HPV pooled mean prevalence rates and their association with other factors. For the cervical cancer population in the MENA region, the pooled HPV prevalence rate was 81% (95% CI, 70%-90%). HPV detected in cervical cancer samples was most prevalent in the Maghreb countries (88%; 95% CI, 78%-96%) and least prevalent in Iran (73%; 95% CI, 62%-83%).For the subgroup with abnormal-cervical cytology in the MENA region, the pooled HPV prevalence rate was 54% (95% CI, 41%-67%), with the highest prevalence reported in Northeast Africa (94%; 95% CI, 91%-96%), and the lowest prevalence in the Levant region (31%; 95 CI, 16%-49%). In the general population subgroup in the MENA region, the pooled HPV prevalence rate was 16% (95% CI, 14%-17%), HPV was most prevalent in the Northeast Africa region (21%; 95 CI, 7%-40%) and least prevalent in the Levant region (7%; 95 CI, 2%-14%). The present meta-analysis comprehensively described the current HPV prevalence rates in the MENA region and found that the rates have continued to increase with time, especially in African regions. Designing personalized awareness and vaccination programs that respect the various cultural and religious values remains the main challenge in prevention of cervical cancer in the MENA region.

Human Papillomavirus (HPV): unawareness of the causal role of HPV infection in cervical cancer, HPV vaccine availability, and HPV vaccine uptake among female schoolteachers in a Middle Eastern country

Human papillomavirus (HPV) is the most common viral infection of the reproductive tract. This cross-sectional study among female schoolteachers assessed the prevalence of i) unawareness of HPV infection's causal role in cervical cancer; ii) unawareness of HPV vaccine availability and iii) examined the sociodemographic variables associated both the outcome variables. This cross-sectional study was conducted among female schoolteachers employed in public and private sectors schools in Kuwait using a structured questionnaire for data collection. Prevalence of each of the outcome variables was computed. Multivariable logistic regression analyses were used to evaluate independent predictors of two dependent variables. A total 1341 female schoolteachers were enrolled. Of the participants, 60% were unaware of HPV causal role in cervical cancer and 88% were unaware of HPV vaccine availability. Among those who were aware of HPV vaccine availability, 83.8% were unvaccinated. Multivariable logistic regression (MLR) model showed that 20-29 years old participants or those with low family income (< 500 KD/month) were significantly (p < 0.05) more likely to be unaware of HPV causal role in cervical cancer. Moreover, participants with family/ personal history of cervical cancer were significantly (p < 0.05) less likely to be unaware of HPV role in causation of cervical cancer. A separate MLR model revealed that the participants were significantly more likely to be unaware of HPV vaccine availability if they were Kuwaiti nationals or non-Kuwaiti Arabs (p < 0.05), employed in public schools (p = 0.003) or less likely to be unaware if they had personal or family history of cervical cancer (p < 0.001). High prevalences of unawareness of causal role of HPV in cervical cancer and unawareness of HPV vaccine availability were recorded. Targeted education among identified sociodemographic groups with high levels of unawareness is warranted. If undertaken, future studies may evaluate the impact of recommended efforts.