GRGiovanni Rezza

Giovanni Rezza

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

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Previous Organizations / Institutes

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Giovanni Rezza has a total of 650 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    SARS-CoV-2 genomic surveillance of migrants arriving to Europe through the Mediterranean routes

    by Fabio Tramuto, Claudia Marotta, Paola Stefanelli, Achille Cernigliaro, Carmelo Massimo Maida, Andrea Silenzi, Ulrico Angeloni, Daniela Di Naro, Giulia Randazzo, Valeria Guzzetta, et al.

    The Central Mediterranean migration route to Europe is one of the most significant and dangerous routes in the world, and it continues to be a major humanitarian concern. It is characterised by a mixed migration flow, with diverse groups of people from Africa, the Middle East, and Asia attempting to reach European shores in search […]


  • Open Access

    The Magnitude of Cardiovascular Disease Risk Factors in Seafarers from 1994 to 2021: A Systematic Review and Meta-Analysis

    by Getu Gamo Sagaro, Ulrico Angeloni, Claudia Marotta, Giulio Nittari, Giovanni Rezza, Andrea Silenzi, Gopi Battineni, Francesco Amenta

    Objectives: The incidence of acute cardiac events is one of the main reasons for medical consultation, disembarkation, repatriation, and death among seafarers at sea. Managing cardiovascular risk factors, particularly those that can be modified, is the key to preventing cardiovascular disease. Therefore, this review estimates the pooled prevalence of major CVD risk factors among seafarers. Methods: We conducted a comprehensive search of studies published between 1994 and December 2021 in four international databases, namely PubMed/Medline, Scopus, Google Scholar, and Web of Science (WOS). Each study was evaluated for methodological quality using the Joanna Briggs Institute (JBI) critical appraisal tool for prevalence studies. The DerSimonian–Laird random-effects model with logit transformations was used to estimate the pooled prevalence of major CVD risk factors. The results were reported in accordance with the Preferred Items for Systematic Review and Meta-analysis (PRISMA) guidelines. Results: Out of all 1484 studies reviewed, 21 studies with 145,913 study participants met the eligibility criteria and were included in the meta-analysis. In the pooled analysis, the prevalence of smoking was found to be 40.14% (95% CI: 34.29 to 46.29%) with heterogeneity between studies (I2 = 98%, p < 0.01). The prevalence of hypertension, overweight, obesity, diabetes mellitus, and alcohol consumption was 45.32%, 41.67%, 18.60%, 12.70%, and 38.58%, respectively. However, the sensitivity analysis after excluding studies showed a pooled prevalence of hypertension, overweight, obesity, and diabetes mellitus of 44.86%, 41.87%, 15.99%, and 16.84%, respectively. The subgroup analysis demonstrated that smoking prevalence among seafarers had decreased significantly after 2013. Conclusion: This study demonstrated that CVD risk factors, particularly hypertension, overweight, smoking, alcohol consumption, and obesity, are prevalent among seafarers. These findings may serve as a guide for shipping companies and other responsible bodies in order to prevent CVD risk factors among seafarers. PROSPERO Registration: CRD42022300993.


  • Omicron variant evolution on vaccines and monoclonal antibodies

    by Michela Sabbatucci, Antonio Vitiello, Salvatore Clemente, Andrea Zovi, Mariarosaria Boccellino, Francesco Ferrara, Carla Cimmino, Roberto Langella, Annarita Ponzo, Paola Stefanelli, et al.

    The severe acute respiratory syndrome coronavirus (SARS-CoV)-2 responsible for the global COVID-19 pandemic has caused almost 760 million confirmed cases and 7 million deaths worldwide, as of end-February 2023. Since the beginning of the first COVID-19 case, several virus variants have emerged: Alpha (B1.1.7), Beta (B135.1), Gamma (P.1), Delta (B.1.617.2) and then Omicron (B.1.1.529) and its sublineages. All variants have diversified in transmissibility, virulence, and pathogenicity. All the newly emerging SARS-CoV-2 variants appear to contain some similar mutations associated with greater "evasiveness" of the virus to immune defences. From early 2022 onward, several Omicron subvariants named BA.1, BA.2, BA.3, BA.4, and BA.5, with comparable mutation forms, have followed. After the wave of contagions caused by Omicron BA.5, a new Indian variant named Centaurus BA.2.75 and its new subvariant BA.2.75.2, a second-generation evolution of the Omicron variant BA.2, have recently been identified. From early evidence, it appears that this new variant has higher affinity for the cell entry receptor ACE-2, making it potentially able to spread very fast. According to the latest studies, the BA.2.75.2 variant may be able to evade more antibodies in the bloodstream generated by vaccination or previous infection, and it may be more resistant to antiviral and monoclonal antibody drug treatments. In this manuscript, the authors highlight and describe the latest evidences and critical issues have emerged on the new SARS-CoV-2 variants.


  • Open Access

    Covid-19 pandemic and management of migrants on quarantine vessels in italy

    by Salvatore Zichichi, Emanuela Maria Frisicale, Francesca Basile, Ignazio Schintu, Laura Pecoraro, Claudia Marotta, Domenico Stabile, Claudio Pulvirenti, Roberto Falvo, Ulrico Angeloni, et al.

    Background and objective: Covid-19 pandemic made the management of the thousands of migrants who have arrived on the sicilian coasts more complex and difficult. At the same time, restrictions to enter italy were in force and reception facilities were not ready to handle several subjects in...

  • Open Access

    Delivery of international vaccinations at the territorial units (uts) of the air and maritime border health offices and seafarers’ health services (usmaf-sasn) of the ministry of health in the period 2017-2022

    by Eleonora Tassone, Emanuela Maria Frisicale, Roberto Falvo, Cosimo Trionfo, Camilla Romano, Marina Di Vona, Ulrico Angeloni, Giovanni Rezza, Romina Sezzatini, Anna Odone

    Background: The USMAF-SASNs, which grouped several UTs, provide the mandatory and recommended vaccines for international travel at their outpatient clinics, which are recognised centres for the administration of yellow fever vaccination. During the COVID-19 emergency, the Italian Government...

  • Open Access

    Health needs of migrants hosted on quarantine vessels in italy during COVID-19 pandemic

    by Emanuela Maria Frisicale, Salvatore Zichichi, Francesca Basile, Ignazio Schintu, Giorgia Battaglia, Claudia Marotta, Ulrico Angeloni, Roberto Falvo, Laura Pecoraro, Domenico Stabile, et al.

    Background and Objective: The southern coasts of Italy have been characterised by massive influxes of migrants from the coasts of North Africa for several decades. COVID-19 pandemic has increased the complexity of the management of migrants flows because of the cross-border rules and the need...

  • Open Access

    Health emergency communication: which key elements?

    by Chiara Crepaldi, Alessandro Venturi, Guido Legnante, Ferruccio Di Paolo, Giovanni Rezza, Luisa Brgonzoli

    Outline of the workshop: Covid 19 pandemic is an example of health emergency at global level, in which institutional communication plays a fundamental role. WHO developed in 2005 general recommendations to be included in national pandemic plans: due to their vulnerable implementation, at the...

  • Open Access

    Increasing Number of Cases Due to Candida auris in North Italy, July 2019–December 2022

    by Camilla Sticchi, Roberto Raso, Lorenza Ferrara, Elena Vecchi, Loredana Ferrero, Daniela Filippi, Giuseppe Finotto, Elena Frassinelli, Carlo Silvestre, Susanna Zozzoli, et al.

    Candida auris is an emerging fungus that represents a serious health threat globally. In Italy, the first case was detected in July 2019. Then, one case was reported to the Ministry of Health (MoH) on January 2020. Nine months later, a huge number of cases were reported in northern Italy. Overall, 361 cases were detected in 17 healthcare facilities between July 2019 and December 2022 in the Liguria, Piedmont, Emilia-Romagna, and Veneto regions, including 146 (40.4%) deaths. The majority of cases (91.8%) were considered as colonised. Only one had a history of travel abroad. Microbiological data on seven isolates showed that all but one strain (85.7%) were resistant to fluconazole. All the environmental samples tested negative. Weekly screening of contacts was performed by the healthcare facilities. Infection prevention and control (IPC) measures were applied locally. The MoH nominated a National Reference Laboratory to characterise C. auris isolates and store the strains. In 2021, Italy posted two messages through the Epidemic Intelligence Information System (EPIS) to inform on the cases. On February 2022, a rapid risk assessment indicated a high risk for further spread within Italy, but a low risk of spread to other countries.


  • Open Access

    Quarantine Vessels and Irregular Migration: New Public Health Measures against SARS-CoV-2

    by Laura Pecoraro, Salvatore Zichichi, Emanuela Maria Frisicale, Claudia Marotta, Domenico Stabile, Claudio Pulvirenti, Ulrico Angeloni, Giorgia Battaglia, Giovanni Rezza, Fabrizio Stracci

    During SARS-CoV-2 pandemic irregular migrants coming by sea to Europe were required to observe a period of isolation or quarantine on-board dedicated ferry vessels, converted into protected isolation system according to Technical Guidelines written by the Italian Ministry of Health. Migrants were accommodated according to their health conditions and swab tests results in different color zones. 20 “Ship Missions” were performed with an average operating time of 4.12 months in the sea. 60,086 migrants were hosted (positivity of 7.29%). This integrated management system showed some limitations but positively contributed to better manage irregular migration during the pandemic.

  • Open Access

    Occupational Diseases and Injuries on Board Ships: A Preliminary Analysis for an Epidemiological Observatory of Seafarers

    by Getu Gamo Sagaro, Ulrico Angeloni, Marzio Di Canio, Claudia Marotta, Giovanni Rezza, Andrea Silenzi, Francesco Amenta

    Workers on board ships have a higher rate of mortality, injuries, and illnesses than their counterparts ashore due to their particularly risky working conditions