Davide Graci

Dr. Davide Graci

University of Palermo, Palermo, Sicilia, Italy
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 November 2022 in Vaccines
Verified
Journal Article
Open access
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Palmira ImmordinoPalmira Immordino
Palmira Immordino
DGDavide Graci
Davide Graci
Alessandra CasuccioAlessandra Casuccio
Alessandra Casuccio
Vincenzo RestivoVincenzo Restivo
Vincenzo Restivo
WALTER MAZZUCCOWALTER MAZZUCCO
WALTER MAZZUCCO
The COVID-19 pandemic has exacerbated inequalities between low- and high-income countries. Within the latter, a greater impact is seen in the poorest and most vulnerable people, including refugees, asylum seekers, and migrants. They all may experience poor access to quality healthcare or have suboptimal health-seeking behavior, distrust of governments, or fear of detention and deportation if seeking healthcare. Some refugees and migrants may face multiple barriers to vaccination and access to health systems that are relevant to the administration of COVID-19 vaccines, despite the growing inclusion of these populations in public health policies. Several good practices have emerged to ensure the inclusion of these populations in vaccination and healthcare for COVID-19 globally. However, inequalities persist between high-income and low-/middle-income populations. The inequalities in COVID-19 vaccination reflect the already existing ones in common health services worldwide. Further efforts are necessary to reduce such disparities, to protect the vulnerable, and, by extension, the general population. The initiatives organized, both at global and local levels, to support vaccination campaigns represent a notable example of how complex multilevel structures, such as health systems, as well as limited resource health services, can successfully face, even during a health emergency, the challenges related to global health issues.

29 February 2024 in Vaccines
Verified
Journal Article
Open access
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DGDavide Graci
Davide Graci
NPNicolò Piazza
Nicolò Piazza
SASalvatore Ardagna
Salvatore Ardagna
Alessandra CasuccioAlessandra Casuccio
Alessandra Casuccio
ADAnton Drobov
Anton Drobov
Palmira ImmordinoPalmira Immordino
Palmira Immordino
Human papillomavirus (HPV) is the most prevalent sexually transmitted virus globally and a primary cause of cervical cancer, which ranks fourth among tumors in both incidence and mortality. Despite the availability of effective vaccines worldwide, HPV vaccination rates vary, especially among migrant and refugee populations. Indeed, migrant status may act as a determinant against accessing vaccinations, among many other factors. The objective of this paper is to evaluate barriers to and facilitators for accessing HPV vaccination in migrant and refugee populations. A systematic review of the existing peer-reviewed academic literature was conducted according to the PRISMA 2020 guidelines in which we examined thirty-four studies to evaluate HPV vaccination rates in these populations and identify factors acting as barriers or facilitators. Key determinants include socio-economic status and health literacy. Communication barriers, including language and cultural factors, also impact access to information and trust in the health workforce. Understanding and considering these factors is crucial for developing proper and inclusive vaccination strategies to ensure that no population is overlooked.

10 September 2025 in Cancers
Verified
Journal Article
Open access
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Vincenzo RestivoVincenzo Restivo
Vincenzo Restivo
DGDavide Graci
Davide Graci
Angelo ImmordinoAngelo Immordino
Angelo Immordino
DMDaniele Giacomo Mancuso
Daniele Giacomo Mancuso
FMFatima Morales
Fatima Morales
Palmira ImmordinoPalmira Immordino
Palmira Immordino
Background/Objectives: Cervical cancer is currently the fourth leading cause of cancer in women. It is primarily caused by Human Papilloma Virus (HPV) infections. Primary prevention methods, such as vaccines, and secondary prevention strategies, such as screening, have significantly reduced the burden of these diseases. The screening could be a crucial factor in the early diagnosis. This study aims to estimate the access of migrant and refugee populations to cervical cancer screening (CCS). Methods: A meta-analysis of scientific literature present in Pubmed and Scopus databases was conducted according to the PRISMA 2020 guidelines. Eighty-seven cross-sectional and five cohort unique studies were examined, to evaluate the participation of migrant and refugee populations to CCS programs in different world regions. Results: Statistical analysis was performed using STATA 14.2 software. Among cross-sectional studies, mean regular adherence to CCS for migrant and refugees resulted being 56% (95% CI 53–60), while participation at least once is 60% (95% CI 54–65). In cohort studies, regular adherence and participation at least once are, respectively, 55% (95% CI 50–59) and 56% (95% CI 52–61). Conclusions: The results of this review show how migrant and refugee populations have limited access to prevention interventions due to several socio-cultural factors. Our work calls for public health professionals’ efforts in order to promote more inclusive policies and prevention strategies towards those populations, aiming to reduce disparities and public health expenditures.

10 October 2023 in Preprints.org
Verified
Preprint
Open access
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Palmira ImmordinoPalmira Immordino
Palmira Immordino
VPVincenzo Pisciotta
Vincenzo Pisciotta
Emanuele AmodioEmanuele Amodio
Emanuele Amodio
CBCelestino Bonura
Celestino Bonura
Floriana BonuraFloriana Bonura
Floriana Bonura
DFDonatella Ferraro
Donatella Ferraro
Although the anti-COVID-19 vaccination has proved to be an effective preventive tool, "break-through infections" have been documented in patients with complete primary vaccination course. Most of the SARS-CoV-2 neutralizing antibodies pro-duced after SARS-CoV-2 infection target the spike protein receptor-binding domain which has an important role in facilitating viral entry and infection of the host cells. SARS-CoV-2 has demonstrated the ability to evolve by accumulating mutations in the spike protein to escape the humoral response of the host. The aim of this study is to compare the titers of neutralizing an-tibodies against the variants of SARS-CoV-2 by analyzing the sera of recovered and vaccinated healthcare workers (HCWs). 293 HCWs were enrolled and divided into three cohorts as follows: 91 recovered from SARS-CoV-2 infection (nVP); 102 vac-cinated who became positive after the primary cycle (VP); 100 vaccinated with complete primary cycle who concluded the follow-up pe-riod without becoming positive (VN). Higher neutraliza-tion titers were observed in the vaccinated subjects’ arms com-pared to the nVP arm. Differences in neutralization titers between arms for single variant were statistically significant (p<0.001) except for titers against the Alpha variant (p<0.05) between nVP and VP. Within the nVP group, the number of subjects with the absence of neutralizing antibodies was high. The presence of high-er titers in patients with a complete primary cycle compared to patients recovered from the infec-tion suggests a better efficacy of artificial immunization compared to natural im-munization, further encouraging the promotion of vaccination even in subjects with previous infection.

8 November 2023 in Vaccines
Verified
Journal Article
Open access
PDF file
Palmira ImmordinoPalmira Immordino
Palmira Immordino
VPVincenzo Pisciotta
Vincenzo Pisciotta
Emanuele AmodioEmanuele Amodio
Emanuele Amodio
CBCelestino Bonura
Celestino Bonura
Floriana BonuraFloriana Bonura
Floriana Bonura
DFDonatella Ferraro
Donatella Ferraro
Although the anti-COVID-19 vaccination has proved to be an effective preventive tool, “breakthrough infections” have been documented in patients with complete primary vaccination courses. Most of the SARS-CoV-2 neutralizing antibodies produced after SARS-CoV-2 infection target the spike protein receptor-binding domain which has an important role in facilitating viral entry and the infection of the host cells. SARS-CoV-2 has demonstrated the ability to evolve by accumulating mutations in the spike protein to escape the humoral response of a host. The aim of this study was to compare the titers of neutralizing antibodies (NtAbs) against the variants of SARS-CoV-2 by analyzing the sera of recovered and vaccinated healthcare workers (HCWs). A total of 293 HCWs were enrolled and divided into three cohorts as follows: 91 who had recovered from SARS-CoV-2 infection (nVP); 102 that were vaccinated and became positive after the primary cycle (VP); and 100 that were vaccinated with complete primary cycles and concluded the follow-up period without becoming positive (VN). Higher neutralization titers were observed in the vaccinated subjects’ arms compared to the nVP subjects’ arms. Differences in neutralization titers between arms for single variants were statistically highly significant (p < 0.001), except for the differences between titers against the Alpha variant in the nVP and in VP groups, which were also statistically significant (p < 0.05). Within the nVP group, the number of subjects with an absence of neutralizing antibodies was high. The presence of higher titers in patients with a complete primary cycle compared to patients who had recovered from infection suggested the better efficacy of artificial immunization compared to natural immunization, and this further encourages the promotion of vaccination even in subjects with previous infections.

17 December 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
Laura BrunelliLaura Brunelli
Laura Brunelli
FVFrancesca Valent
Francesca Valent
MCManola Comar
Manola Comar
BSBarbara Suligoi
Barbara Suligoi
MSMaria Cristina Salfa
Maria Cristina Salfa
RSRossella Spadola
Rossella Spadola
Background/Objectives: HPV is the most common sexually transmitted infectious agent worldwide and adolescents are at high risk of becoming infected with HPV. Our study aimed at understanding how much adolescents know about the virus and its effects, and to obtain infor-mation on attitudes and behaviors regarding HPV vaccination to close these gaps. Methods: Within the ESPRIT project, 598 lower and upper secondary school students from 3 Italian regions were surveyed between December 2023 and March 2024 using an online questionnaire with 7 questions on awareness, knowledge and attitudes towards HPV and the HPV vaccine. A regres-sion model was used to determine correlations based on sex, living context, province of residence and school type. Results: Younger students believed that HPV causes HIV/AIDS (8.9%) or hepati-tis C (3.0%) and rarely mentioned anal (21%) and oral sex (9.6%) as ways of transmission. Among older students the misconceptions were similar, with worrying rates of students stating that HPV causes cancer only in women (18%) or men (2.4%), and low rates of identifying trans-mission risk from anal (41%) and oral (34%) intercourse and genital contact (38%). HPV vac-cination rate was quite low (47% in younger, 61% in older students). Considering regressions, the living context was decisive for the knowledge of younger students; sex, school type and province of residence in older students. Conclusions: Awareness and knowledge of HPV and the HPV vaccine are low among Italian students, and reported vaccination coverage is below the national target. Coordinated efforts at national level are needed to address this public health issue.