Vaccine最新文献

{"title":"Vaccination during febrile illness, what do we know? A systematic-narrative hybrid review of the literature and international recommendations","authors":"Soumaya Essalim ,&nbsp;Chloe Tachet ,&nbsp;Sarah Demingo ,&nbsp;Sebastien Bruel ,&nbsp;Amandine Gagneux-Brunon ,&nbsp;Elisabeth Botelho-Nevers","doi":"10.1016/j.vaccine.2024.126473","DOIUrl":"10.1016/j.vaccine.2024.126473","url":null,"abstract":"<div><h3>Introduction</h3><div>Vaccination during febrile illness (FI) is often regarded as a contraindication, leading to its postponement in most cases. Considering the doubts about the immunogenicity, efficacy and safety of the procedure among physicians and patients, we sought in this review to assess the data in the literature and international recommendations in terms of vaccination during FI.</div></div><div><h3>Methods</h3><div>This review was conducted according to the methodological structure for systematic-narrative hybrid reviews, using PubMed and Cochrane library databases until March 2024. Inclusion criteria were studies dealing with vaccination during FI in children or adults, and exclusion criteria were studies related to post-vaccination fever or animal experiments. A review of international recommendations was also carried out. Articles included were fully examined by the authors for eligibility.</div></div><div><h3>Results</h3><div>Our literature search enabled us to identify six studies about the immunogenicity and safety of vaccination during FI in children. All have shown no significant differences in seroconversion rates, protective antibody levels or adverse events between children vaccinated during FI and controls. Nine articles on physicians and patients' attitudes regarding immunization during FI were also included in this review. Vaccination was frequently postponed in cases of fever, primarily to avoid potential complications. Review of international recommendations allowed us to classify countries into three categories: those recommending vaccination regardless of the body temperature, those recommending vaccination within a temperature limit, and those with unclear recommendations.</div></div><div><h3>Discussion</h3><div>The immunogenicity and safety studies were only conducted in children, yet results were reassuring. Despite using the same evidence, recommendations differed from country to another. This situation may explain the reluctance of physicians and patients to embrace this practice. Postponing vaccination is however associated with low vaccine coverage and could be considered a missed opportunity to vaccinate. A higher level of evidence seems needed for a firm conclusion.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126473"},"PeriodicalIF":4.5,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incidence of ischemic stroke after COVID-19 bivalent booster vaccination in an integrated health system","authors":"Katie A. Sharff ,&nbsp;Thomas K. Tandy ,&nbsp;Paul F. Lewis ,&nbsp;Eric S. Johnson","doi":"10.1016/j.vaccine.2024.126440","DOIUrl":"10.1016/j.vaccine.2024.126440","url":null,"abstract":"<div><div>We conducted a retrospective cohort study of Kaiser Permanente Northwest patients 18 years and older who were vaccinated with the COVID-19 bivalent vaccine between September 1, 2022 and March 1, 2023. We replicated the Vaccine Safety Datalink (VSD) rapid cycle analysis protocol to identify cases of ischemic stroke or transient ischemic attack (TIA) in the 21 days following vaccination using ICD-10-CM diagnosis codes in the primary position. The incidence of ischemic stroke or TIA was 34.3 per 100,000 (95 % CI, 17.7–59.9) in patients 65 years or older who received the bivalent Pfizer vaccine. Although a safety signal was detected in this study, further investigation is warranted to validate an association between COVID-19 vaccination and risk of ischemic stroke. Replication of the VSD case definition confirmed the exceptionally high positive predictive value in identifying ischemic stroke or TIA within 21 days of Pfizer bivalent vaccination in individuals 65 years and older. Two physician adjudication with chart review and confirmation of ischemic stroke cases allowed accurate absolute incidence estimates of stroke per 100,000 vaccine recipients and is helpful in calculation of net benefit for policy recommendations and shared decision-making.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126440"},"PeriodicalIF":4.5,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seroprevalence of diphtheria, tetanus and pertussis antibodies and Tdap vaccination in pregnant women in Greece – A cross- sectional study","authors":"S. Papailiou ,&nbsp;A. Soldatou ,&nbsp;A. Marmarinos ,&nbsp;M. Avgeris ,&nbsp;E. Papathoma ,&nbsp;M. Sindos ,&nbsp;S. Georgantzi ,&nbsp;Α. Rodolakis ,&nbsp;N. Iacovidou ,&nbsp;D. Gourgiotis ,&nbsp;M. Tsolia","doi":"10.1016/j.vaccine.2024.126435","DOIUrl":"10.1016/j.vaccine.2024.126435","url":null,"abstract":"<div><h3>Objectives</h3><div>We performed a cross- sectional study in two maternity hospitals in Athens, Greece between 2017 and 2019 assessing seroprevalence and Geometric Mean Titres (GMTs) of diphtheria, pertussis and tetanus antibodies in pregnant women and recorded adherence to Greek National Immunization Program (NIP) regarding Tdap vaccination in pregnancy.</div></div><div><h3>Methods</h3><div>Blood samples were collected from women in labour and anti- diphtheria, tetanus and pertussis toxin IgG antibodies were measured by Elisa kits. Seropositivity was defined as anti-diphtheria and anti- tetanus toxin IgG levels ≥0.1, and anti- pertussis &gt;50 IU/mL. Seroprevalence and GMTs were calculated according to demographic factors. Tdap vaccination <strong><em>before and during pregnancy</em></strong> was <strong><em>self-reported</em></strong> by study participants.</div></div><div><h3>Results</h3><div>We analysed 253 blood samples and paired questionnaires. Seropositivity was 57.7 % for diphtheria. The lowest rate (38.2 %) was observed in the youngest age group (≤25 years). Increasing age was associated with higher seroprevalence (<em>p</em> = 0.036). 12.5 % of women were seropositive against pertussis. Most were seropositive for tetanus (92.7 %). Anti-pertussis GMTs were 16.98, anti-diphtheria 0.13 and anti- tetanus GMTs 0.63 IU/mL. Women born in Greece and with higher educational level had higher antibodies against tetanus (<em>p</em> = 0.004 &amp; 0.004 respectively). <strong><em>3/253 (1.2 %)</em></strong> of women assessed reported Tdap vaccination during pregnancy.</div></div><div><h3>Conclusion</h3><div>Seropositivity rates were low for diphtheria and pertussis among pregnant women. In addition, <strong><em>less than 2 %</em></strong> were vaccinated with Tdap despite recommendation by Greek NIP. Therefore, many infants end up unprotected during the first months of life. Our study highlights the urgent need for national campaigns targeting to completion of childhood immunization and information of the public about safety and importance of Tdap vaccination in pregnancy.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126435"},"PeriodicalIF":4.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vaccine hesitancy and routine revaccination among adult HCT survivors in the United States: A convergent mixed methods analysis","authors":"Mihkai M. Wickline ,&nbsp;Paul A. Carpenter ,&nbsp;Jeffrey R. Harris ,&nbsp;Sarah J. Iribarren ,&nbsp;Kerryn W. Reding ,&nbsp;Kenneth C. Pike ,&nbsp;Stephanie J. Lee ,&nbsp;Rachel B. Salit ,&nbsp;Masumi Ueda Oshima ,&nbsp;Phuong T. Vo ,&nbsp;Donna L. Berry","doi":"10.1016/j.vaccine.2024.126374","DOIUrl":"10.1016/j.vaccine.2024.126374","url":null,"abstract":"<div><div>Revaccination to restore immunity to vaccine-preventable diseases (VPDs) is essential risk mitigation in the prevention of infectious morbidity and mortality after hematopoietic cell transplantation (HCT). However, revaccination rates have been shown to be insufficient and to what extent vaccine hesitancy contributes to survivors not becoming fully revaccinated is unknown. We performed a cross-sectional, mixed methods survey-based study to explore how vaccine hesitancy influences revaccination among US adult HCT survivors who were 2 to 8 years after transplant. Participants were asked to complete the Vaccination Confidence Scale (VCS) and open-ended survey items regarding vaccine confidence. The survey response rate was 30 %; among 332 respondents, vaccine confidence was high in 69 %, medium in 20 %, and low in 11 %. On multivariable analysis, four factors associated with high vaccine confidence were: predominantly Democrat zip codes (per 2020 election results), ability to pay for revaccination out of pocket, receipt of pre-HCT adult vaccines, and receipt of COVID-19 vaccines. From 189 participants who also answered open-ended items, 14 themes associated with vaccine confidence were identified and collapsed into 4 categories based on the VCS: Benefits, Harms, Trust, and Other. Merged analysis showed congruence between VCS scores and open-ended survey responses and created a narrative about the relative importance of the constructs when approaching revaccination by vaccine confidence level. These findings significantly expand our knowledge of how vaccine hesitancy influences revaccination uptake among US adult HCT survivors. Population-specific interventions to approach vaccine-hesitant survivors should be developed and tested.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126374"},"PeriodicalIF":4.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A prospective, multicenter study of hepatitis B birth-dose vaccine with or without hepatitis B immunoglobulin in preventing mother-to-child transmission of hepatitis B virus in Ethiopia","authors":"Mebrihit Arefaine ,&nbsp;Asgeir Johannessen ,&nbsp;Tilahun Teklehaymanot ,&nbsp;Adane Mihret ,&nbsp;Dawit Hailu Alemayehu ,&nbsp;Mahlet Osman ,&nbsp;Andargachew Mulu ,&nbsp;Nega Berhe","doi":"10.1016/j.vaccine.2024.126461","DOIUrl":"10.1016/j.vaccine.2024.126461","url":null,"abstract":"<div><h3>Background</h3><div>Historically, mother-to-child transmission (MTCT) of hepatitis B virus (HBV) was considered uncommon in Africa, leading to a reluctant attitude to birth-dose HBV vaccination on the continent. As a randomized trial would be unethical, real-life data are needed to assess the effect of HBV birth-dose vaccine in Africa.</div></div><div><h3>Methods</h3><div>A multicenter, prospective, observational study of hepatitis B surface antigen (HBsAg)-positive pregnant women and their infants was carried out in Ethiopia, from January 2019 to May 2021. Pregnant women were screened for HBsAg and HIV as part of routine antenatal care and/or delivery, and HBsAg-positive HIV-negative pregnant women were included in the study. HBV birth-dose vaccine and hepatitis B immunoglobulin (HBIg) were recommended but not all newborns received it as it was not national policy. All infants, however, received the pentavalent HBV vaccine at 6, 10, and 14 weeks of age. Vaccination status was confirmed from delivery ward charts and infant vaccination certificates. Infants were tested for HBsAg at 9 months of age and a positive result was taken as evidence of MTCT.</div></div><div><h3>Findings</h3><div>Of 290 HBsAg-positive pregnant women, 168 mother/infant pairs returned for their 9-month follow-up visit and were included in this analysis. Two of 112 (1.8 %) infants who received birth-dose vaccine with HBIg, and 2 of 23 (8.7 %) who received birth-dose vaccine alone were HBsAg positive at nine months of age, compared to 8 of 33 (24.2 %) who received neither vaccine nor HBIg at birth (<em>p</em> = 0.002). High maternal viral load (&gt;200,000 IU/ml; adjusted odds ratio [AOR] 10.4; 95 % confidence interval [CI] 1.2–92.1) and not receiving HBV birth-dose vaccine nor HBIg (AOR 29.2; 95 % CI 4.0–211.3) were independent predictors of MTCT.</div></div><div><h3>Interpretation</h3><div>Birth-dose HBV vaccine with or without HBIg significantly reduced the risk of MTCT of HBV in Ethiopia. Improved coverage of birth-dose HBV vaccine should be an urgent priority.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126461"},"PeriodicalIF":4.5,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of a multiplexed immunoassay for assessing long-term humoral immunity Orthopoxviruses","authors":"Bethany Hicks ,&nbsp;Scott Jones ,&nbsp;Helen Callaby ,&nbsp;Daniel Bailey ,&nbsp;Claire Gordon ,&nbsp;Tommy Rampling ,&nbsp;Catherine Houlihan ,&nbsp;Ezra Linley ,&nbsp;Simon Tonge ,&nbsp;Clarissa Oeser ,&nbsp;Rachael Jones ,&nbsp;Marcus Pond ,&nbsp;Ravi Mehta ,&nbsp;Deborah Wright ,&nbsp;Bassam Hallis ,&nbsp;Cathy Rowe ,&nbsp;Ashley Otter","doi":"10.1016/j.vaccine.2024.126453","DOIUrl":"10.1016/j.vaccine.2024.126453","url":null,"abstract":"<div><h3>Background</h3><div>The 2022 Monkeypox virus (MPXV) global outbreak boosted development of multiple serological assays to aid understanding of Mpox immunology.</div></div><div><h3>Objectives</h3><div>The study aimed to assess a multiplexed solid-phase electrochemiluminescence immunoassay (Meso Scale Discovery (MSD)) for simultaneous detection of antibodies against MPXV, including A35, E8 and M1 antigens, along with corresponding Vaccina Virus (VACV) homologues and demonstrate its accuracy in assessing antibody titres post-vaccination and infection.</div></div><div><h3>Methods</h3><div>Assay performance was assessed for simultaneous detection of antibodies against MPXV and corresponding VACV antigens. Sensitivity and specificity were evaluated with paediatric negatives (<em>n</em> = 215), pre- and post-IMVANEX vaccinated (<em>n</em> = 80), and MPXV (Clade IIb, <em>n</em> = 39) infected serum samples.</div></div><div><h3>Results</h3><div>The assay demonstrated high specificity (75.68 % (CI: 69.01–81.29) - 95.98 % (CI:92.54–97.87)) and sensitivity (62.11 % (CI:52.06–71.21) - 98.59 % (CI:92.44 %–99.93 %)) depending on the Orthopoxvirus antigen. Preferential binding was observed between MPXV-infected individuals and MPXV antigens, while vaccinated individuals exhibited increased binding to VACV antigens. These results highlight differential binding patterns between antigen homologues in related viruses.</div></div><div><h3>Conclusion</h3><div>Overall, this assay demonstrates high sensitivities in detecting antibodies for multiple relevant MPXV and VACV antigens post-infection and post-vaccination, indicating its utility in understanding immune responses to Orthopoxviruses in current and future outbreaks and evaluating the immunogenicity of new-generation Mpox-specific vaccinations.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126453"},"PeriodicalIF":4.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High prevalence of human papillomavirus (HPV) in unvaccinated adolescent girls in South Africa, particularly those living with HIV","authors":"Danielle I. Travill ,&nbsp;Dorothy A. Machalek ,&nbsp;Helen Rees ,&nbsp;Zizipho Mbulawa ,&nbsp;Admire Chikandiwa ,&nbsp;Richard Munthali ,&nbsp;Kathy Petoumenos ,&nbsp;John M. Kaldor ,&nbsp;Sinead Delany-Moretlwe","doi":"10.1016/j.vaccine.2024.126442","DOIUrl":"10.1016/j.vaccine.2024.126442","url":null,"abstract":"<div><h3>Introduction</h3><div>In 2014, South Africa implemented a national two-dose HPV vaccination programme using the bivalent vaccine for girls aged 9 years and older attending Grade 4 at public schools. We assessed HPV prevalence and risk factors among South African adolescent girls and young women (AGYW) aged 17–18 years who were ineligible for vaccination.</div></div><div><h3>Methods</h3><div>From June to December 2019, we surveyed AGYW aged 17–18 years attending primary care clinics in four South African provinces. Consenting participants completed a questionnaire, underwent HIV counselling and testing, and self-collected a vaginal swab for HPV testing. Samples were tested by Seegene AnyPlex™ II HPV28. We used summary statistics to describe the population characteristics and logistic regression to examine the association between risk factors and high-risk HPV detection.</div></div><div><h3>Results</h3><div>910 participants were screened, 900 enrolled, 896 had valid HPV results, and 819 were unvaccinated and included in this study. Of these, 248 (30.3 %) were living with HIV and 597 (72.9 %) reported ever having vaginal sex. Overall, 463 (56.5 %) had at least one high-risk HPV detected, and 177 (21.6 %) had HPV16/18 detected. AGYW living with HIV had a higher prevalence of any high-risk HPV (65.3 % vs 52.7 %, <em>p</em> &lt; 0.001) and HPV 16/18 (29.4 % vs 18.2 %, p &lt; 0.001) compared to those without HIV. Multiple infections were also more common in participants living with HIV, with three or more high-risk HPV types detected in 32.3 % compared with 15.4 % of those without HIV (<em>p</em> &lt; 0.001). In multivariate analyses, HIV status (p &lt; 0.001) and higher number of lifetime sexual partners (p-trend&lt;0.001) were associated with high-risk HPV detection.</div></div><div><h3>Conclusions</h3><div>High-risk HPV was very common in unvaccinated South Africa AGYW, especially among those living with HIV, highlighting the importance of HPV vaccination in settings with high HIV prevalence.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126442"},"PeriodicalIF":4.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The risk of postherpetic neuralgia in COVID-19 vaccination-associated herpes zoster: A retrospective cohort study using TriNetX","authors":"Sheng-Hsiang Ma ,&nbsp;Tai-Li Chen ,&nbsp;Wei-Fan Ou ,&nbsp;Wen-Cheng Chao ,&nbsp;Hsin-Hua Chen ,&nbsp;Chen-Yi Wu","doi":"10.1016/j.vaccine.2024.126451","DOIUrl":"10.1016/j.vaccine.2024.126451","url":null,"abstract":"<div><h3>Background</h3><div>The administration of the COVID-19 vaccine has been linked to the development of herpes zoster (HZ). However, studies examining the clinical outcomes in COVID-19 vaccination-associated and non-COVID-19 vaccination-associated HZ are lacking.</div></div><div><h3>Objective</h3><div>To investigate the risk of postherpetic neuralgia (PHN) in COVID-19 vaccination associated HZ.</div></div><div><h3>Methods</h3><div>A total of 7200 patients with COVID-19 vaccination-associated HZ and 7200 matched controls were enrolled from the US Collaborative Network in the TriNetX database. The main outcome of this study was the development of PHN.</div><div>Patients were followed-up from 3 months after HZ until PHN diagnoses, withdrawal from the database, or October 8, 2024.</div></div><div><h3>Results</h3><div>We observed that patients with COVID-19 vaccination-associated HZ had a significantly higher risk of developing PHN as compared to the control group, with hazard ratio of 1.69 (&gt; 3 months), 1.80 (&gt; 6 months), 1.86 (&gt; 1 year), and 1.93 (&gt;2 years), respectively. Additionally, the association remained significant in the stratified analysis, which included sex, age, malignancy status, and initial use of antiviral agents.</div></div><div><h3>Conclusion</h3><div>This study showed that COVID-19 vaccination-associated HZ demonstrated a significantly higher risk of developing PHN.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126451"},"PeriodicalIF":4.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longitudinal safety and efficacy of the BNT162b2 mRNA COVID-19 vaccine in children aged 4–11 years with juvenile-onset autoimmune inflammatory rheumatic diseases: A prospective multicenter study","authors":"Tali Eviatar ,&nbsp;Amit Ziv ,&nbsp;Amir Oved ,&nbsp;Adi Miller-Barmak ,&nbsp;Adi Pappo ,&nbsp;Ruth Livny ,&nbsp;Gil Amarilyo ,&nbsp;Yonatan Butbul Aviel ,&nbsp;Rinat Naor ,&nbsp;Sara Pel ,&nbsp;Victoria Furer ,&nbsp;Ori Elkayam ,&nbsp;Yosef Uziel ,&nbsp;Merav Heshin-Bekenstein","doi":"10.1016/j.vaccine.2024.126426","DOIUrl":"10.1016/j.vaccine.2024.126426","url":null,"abstract":"<div><div>This prospective, longitudinal, multicenter study assessed the safety and efficacy of the Pfizer-BioNTech BNT162b2 mRNA COVID-19 vaccine among children 4–11 years-old with autoimmune inflammatory rheumatologic disease (AIIRD), compared to healthy controls. The study was conducted from 11/2021–12/2022 at 4 tertiary pediatric rheumatology units in Israel. Participants received at least 2 vaccine doses. Safety analysis included adverse events and disease activity measures. Efficacy was assessed by COVID-19 infection rates. Immunogenicity was evaluated in a subset of participants using anti- receptor binding domain antibody titers. Thirty-one children with AIIRD and 45 immunocompetent controls with similar baseline characteristics were included. Safety profile was favorable, with mild or no adverse events reported. The adverse event rates were similar in the AIIRD and control groups after the first (27 (60 %) vs. 14 (45.2 %), <em>p</em> = 0.2977) and the second vaccine doses (22 (49.0 %) vs. 18 (58.1 %), <em>p</em> = 0.5799), respectively. AIIRD activity remained stable and low after vaccination. Breakthrough COVID-19 infection rates were similar between groups, with 15 (48.4 %) in the AIIRD vs. 25 (55.6 %) in the control group (<em>p</em> = 0.7029). All reported COVID-19 infections in the AIIRD group and 18 (72 %) in the control group were symptomatic (<em>p</em> = 0.033), although symptoms were generally mild, with no severe disease. The safety of the BNT162b2 COVID-19 vaccine was excellent in children ages 4–11 years with AIIRD and healthy controls. Efficacy between groups was similar.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126426"},"PeriodicalIF":4.5,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing HPV vaccine uptake in girls and boys – A qualitative analysis of Canadian school-based vaccination programs","authors":"Eve Dubé ,&nbsp;Dominique Gagnon ,&nbsp;Catherine Pelletier ,&nbsp;Jeannette L. Comeau ,&nbsp;Audrey Steenbeek ,&nbsp;Noni MacDonald ,&nbsp;Melissa Kervin ,&nbsp;Shannon E. MacDonald ,&nbsp;Hana Mitchell ,&nbsp;Julie A. Bettinger","doi":"10.1016/j.vaccine.2024.126425","DOIUrl":"10.1016/j.vaccine.2024.126425","url":null,"abstract":"<div><div>The purpose of this study was to better understand barriers and enabling conditions for HPV vaccination in school-based vaccination programs in Canada. Semi-structured interviews were conducted by telephone or in person with parents, nurses, and school staff (<em>n</em> = 50) in three Canadian provinces. Interviews explored views on HPV and HPV vaccination, strengths and weaknesses of the school-based HPV vaccination programs and proposed interventions to increase uptake. Interview transcripts were coded and analyzed thematically using the socio-ecological model. Participants had positive views towards HPV vaccination and school-based offer. They identified barriers and enabling conditions at the individual and interpersonal level (e.g., knowledge, attitudes, behaviours of – and relationships between – parents, nurses, and school personnel), at the organizational level (e.g., allocated resources, information provision, process to ensure informed consent, vaccination setting and environment) and at the community and policy level (e.g., social group values and norms, media coverage around the HPV vaccine). Participants also suggested strategies to reduce identified barriers (e.g., communication interventions, simpler inform consent process). Different layers of barriers and enabling conditions of HPV vaccination in school settings were identified. Tailored interventions remain key to enhance vaccine acceptance and uptake.</div></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":"42 26","pages":"Article 126425"},"PeriodicalIF":4.5,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}