Article
Medicine, General & Internal
Lorenzo Lodi, Federica Barbati, Daniela Amicizia, Vincenzo Baldo, Anna Maria Barbui, Alessandro Bondi, Claudio Costantino, Liviana Da Dalt, Lorenza Ferrara, Francesca Fortunato, Valentina Guarnieri, Giancarlo Icardi, Giuseppe Indolfi, Domenico Martinelli, Marco Martini, Maria Moriondo, Francesco Nieddu, Diego G. Peroni, Rosa Prato, Silvia Ricci, Francesca Russo, Francesca Tirelli, Francesco Vitale, Shamez N. Ladhani, Chiara Azzari
Summary: This study assessed the effectiveness and reduction in incidence rate ratios (IRRs) associated with the 4CMenB vaccine in pediatric population in 6 regions in Italy. The results showed high effectiveness of the vaccine in preventing invasive serogroup B meningococcal disease. Starting vaccination at an earlier age resulted in greater reduction in IRR.
Review
Infectious Diseases
Rafik Bekkat-Berkani, Elena Fragapane, Scott Preiss, Rino Rappuoli, Woo-Yun Sohn, Lamine Soumahoro, Kumaran Vadivelu
Summary: The development of pentavalent MenABCWY vaccine is crucial for further controlling invasive meningococcal disease and improving immunisation rates, which is currently in late-stage development.
JOURNAL OF INFECTION
(2022)
Article
Immunology
Shamez N. Ladhani, Helen Campbell, Nick Andrews, Sydel R. Parikh, Joanne White, Michael Edelstein, Stephen A. Clark, Jay Lucidarme, Ray Borrow, Mary E. Ramsay
Summary: This study aimed to evaluate the impact of 4CMenB and MenACWY on MenW disease. The results showed that 4CMenB provided direct protection for children eligible for the vaccine, while the MenACWY program also indirectly prevented some cases.
CLINICAL INFECTIOUS DISEASES
(2021)
Article
Infectious Diseases
Bing Wang, Lynne Giles, Prabha Andraweera, Mark McMillan, Sara Almond, Rebecca Beazley, Janine Mitchell, Michele Ahoure, Emma Denehy, Louise Flood, Helen Marshall
Summary: This study evaluated the effectiveness of a state-funded 4CMenB vaccine program on invasive meningococcal B (MenB) disease and gonorrhoea in South Australia. The results showed reductions in the incidence of MenB disease in infants and adolescents, with high vaccine effectiveness. The vaccine also demonstrated moderate protection against gonorrhoea in adolescents. Overall, these findings highlight the importance and effectiveness of the 4CMenB vaccine program. Rating: 8/10.
JOURNAL OF INFECTION
(2023)
Article
Immunology
Shamez N. Ladhani, Helen Campbell, Zahin Amin-Chowdhury, Jay Lucidarme, Ray Borrow, Mary E. Ramsay
Summary: This study assessed the timeliness of vaccination in children with confirmed MenB disease after the implementation of 4CMenB vaccine. The results showed that a proportion of infants and toddlers did not receive the scheduled vaccine before developing MenB disease. Modifying the vaccination schedule to provide earlier protection could be beneficial.
Article
Infectious Diseases
Alessia Biolchi, Sara Tomei, Brunella Brunelli, Maria Giuliani, Stefania Bambini, Ray Borrow, Heike Claus, Maria Cecilia O. Gorla, Eva Hong, Ana Paula S. Lemos, Jay Lucidarme, Muhamed-Kheir Taha, Ulrich Vogel, Sonia Budroni, Marzia M. Giuliani, Rino Rappuoli, Philip Boucher, Mariagrazia Pizza
Summary: This study found that vaccination with 4CMenB in adolescents can lead to bactericidal killing of non-MenB isolates, suggesting that mass vaccination may impact IMD caused by serogroups other than MenB.
INFECTIOUS DISEASES AND THERAPY
(2021)
Review
Infectious Diseases
Federico Martinon-Torres, Angelika Banzhoff, Chiara Azzari, Philippe De Wals, Robin Marlow, Helen Marshall, Mariagrazia Pizza, Rino Rappuoli, Rafik Bekkat-Berkani
Summary: Evidence from real-world settings supports the effectiveness and impact of 4CMenB vaccine against MenB IMD. Direct protection of high-risk groups is emphasized, with routine vaccination programs potentially offering the preferred option for disease control.
JOURNAL OF INFECTION
(2021)
Article
Biochemistry & Molecular Biology
Daniele Veggi, Enrico Malito, Paola Lo Surdo, Werner Pansegrau, Valentina Rippa, Newton Wahome, Silvana Savino, Vega Masignani, Mariagrazia Pizza, Matthew J. Bottomley
Summary: Invasive meningococcal disease is a global health threat. Factor H binding protein (fHbp) is a protective antigen included in the current vaccines against serogroup B meningococcus (MenB). This study reports the crystal structure of a natural fHbp cross-variant chimera, variant1-2,3.x, and characterizes its properties, including stability, binding ability, and three-dimensional structure. The findings provide insights for designing loss-of-function mutations with higher immunogenicity and contribute to the understanding of fHbp biological and immunological evolution in nature.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2022)
Article
Multidisciplinary Sciences
Weina Sun, Yonghong Liu, Fatima Amanat, Irene Gonzalez-Dominguez, Stephen McCroskery, Stefan Slamanig, Lynda Coughlan, Victoria Rosado, Nicholas Lemus, Sonia Jangra, Raveen Rathnasinghe, Michael Schotsaert, Jose L. Martinez, Kaori Sano, Ignacio Mena, Bruce L. Innis, Ponthip Wirachwong, Duong Huu Thai, Ricardo Das Neves Oliveira, Rami Scharf, Richard Hjorth, Rama Raghunandan, Florian Krammer, Adolfo Garcia-Sastre, Peter Palese
Summary: The rapid development of COVID-19 vaccines has been crucial in mitigating the spread of SARS-CoV-2, but equitable allocation of vaccines is necessary to limit global impact and the emergence of variants. A Newcastle disease virus-based COVID-19 vaccine candidate has been developed, inducing protective immunity in various animal models.
NATURE COMMUNICATIONS
(2021)
Article
Infectious Diseases
Christine Robin, Rabah Redjoul, Aude Terrade, Ala-Eddine Deghmane, Ludovic Cabanne, Catherine Cordonnier, Muhamed-Kheir Taha
Summary: This study investigated the immunogenicity and safety of the 4CMenB recombinant vaccine in adult hematopoietic cell transplantation (HCT) recipients. The results showed that the vaccine induced immune responses, but some recipients lost immunity after 9 months.
CLINICAL MICROBIOLOGY AND INFECTION
(2022)
Article
Immunology
Mary C. Gray, Keena S. Thomas, Evan R. Lamb, Lacie M. Werner, Kristie L. Connolly, Ann E. Jerse, Alison K. Criss
Summary: Evaluation of vaccine candidates for gonorrhea requires assays to predict efficacy in vitro and in animal models, including the role of antibodies. In this study, assays were developed and optimized to evaluate antibody functionality after immunization of mice, aiding in the prioritization of vaccine candidates.
INFECTION AND IMMUNITY
(2023)
Article
Biotechnology & Applied Microbiology
Eva Hong, Aude Terrade, Alessandro Muzzi, Rosita De Paola, Giuseppe Boccadifuoco, Rita La Gaetana, Ala-Eddine Deghmane, Mariagrazia Pizza, Laura Serino, Muhamed-Kheir Taha
Summary: This study analyzed meningococcal B isolates in France using various methods and compared two epidemiological years, 2013-2014 and 2018-2019. The results showed that the reduction in strain coverage was mainly driven by a decrease in alleles exactly matching the vaccine antigens, and a high number of unpredictable isolates was observed using the MenDeVAR method.
HUMAN VACCINES & IMMUNOTHERAPEUTICS
(2021)
Article
Biotechnology & Applied Microbiology
Helen S. Marshall, Prabha H. Andraweera, Bing Wang, Mark McMillan, Ann P. Koehler, Noel Lally, Sara Almond, Emma Denehy, Michele A'Houre, Lynne C. Giles, Louise Flood
Summary: The project aims to evaluate the effectiveness of the SA 4CMenB vaccination program against invasive meningococcal disease and gonorrhoea through observational studies using a combination of interrupted time series regression model, screening, and case-control analyses. These analyses are designed to minimize biases and provide critical data on the effectiveness of the 4CMenB vaccine against two diseases of major global public health concern.
HUMAN VACCINES & IMMUNOTHERAPEUTICS
(2021)
Article
Immunology
Shimeng Bai, Tianhan Yang, Cuisong Zhu, Meiqi Feng, Li Zhang, Ziling Zhang, Xiang Wang, Rui Yu, Xinghao Pan, Chen Zhao, Jianqing Xu, Xiaoyan Zhang
Summary: A nucleoside-modified Rabies mRNA-LNP vaccine was developed, which showed more potent immune responses and prolonged protection compared to a commercially available inactivated vaccine.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Microbiology
Michael P. Doyle, Joseph R. Genualdi, Adam L. Bailey, Nurgun Kose, Christopher Gainza, Jessica Rodriguez, Kristen M. Reeder, Christopher A. Nelson, Prashant N. Jethva, Rachel E. Sutton, Robin G. Bombardi, Michael L. Gross, Justin G. Julander, Daved H. Fremont, Michael S. Diamond, James E. Crowe
Summary: Yellow fever virus (YFV) is a mosquito-borne virus that occasionally causes outbreaks of severe infection in South America and sub-Saharan Africa. Effective vaccines have been developed, but recent production and distribution issues have left many people vulnerable. This study aimed to isolate an antibody from individuals who had received the YFV vaccine for future use as a biologic drug. The most powerful antiviral antibody was found to be effective in animal models of human infection. These studies provide insights into the human immune response to YFV and offer a potential therapeutic antibody candidate for inhibiting highly virulent strains of the virus.
Review
Microbiology
Mariagrazia Pizza, Rafik Bekkat-Berkani, Rino Rappuoli
Article
Multidisciplinary Sciences
Rino Rappuoli, Ennio De Gregorio, Giuseppe Del Giudice, Sanjay Phogat, Simone Pecetta, Mariagrazia Pizza, Emmanuel Hanon
Summary: The COVID-19 pandemic highlights the importance of vaccines, with advancements in technology allowing for unprecedented speed in vaccine development. New vaccine technologies accelerated by the urgency of COVID-19 may also hold the key to addressing other health priorities in the post-pandemic world.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biotechnology & Applied Microbiology
Cecilia Fazio, Alessia Biolchi, Arianna Neri, Sara Tomei, Paola Vacca, Luigina Ambrosio, Annapina Palmieri, Elena Mori, Rita La Gaetana, Mariagrazia Pizza, Marzia Monica Giuliani, Laura Serino, Paola Stefanelli
Summary: The study found that the 4CMenB vaccine can induce bactericidal antibodies against genetically representative meningococcal W, Y and X strains from Italy, with different susceptibilities to killing observed for serogroup C strains with similar antigenic repertoires.
HUMAN VACCINES & IMMUNOTHERAPEUTICS
(2021)
Editorial Material
Cell Biology
Mariagrazia Pizza, Simone Pecetta, Rino Rappuoli
Summary: The SARS-CoV-2 pandemic has sparked innovation in vaccinology, particularly with COVID-19 mRNA vaccines that encode viral antigens digitally, eliminating the need for protein purification or pathogen inactivation.
SCIENCE TRANSLATIONAL MEDICINE
(2021)
Article
Biotechnology & Applied Microbiology
Eva Hong, Aude Terrade, Alessandro Muzzi, Rosita De Paola, Giuseppe Boccadifuoco, Rita La Gaetana, Ala-Eddine Deghmane, Mariagrazia Pizza, Laura Serino, Muhamed-Kheir Taha
Summary: This study analyzed meningococcal B isolates in France using various methods and compared two epidemiological years, 2013-2014 and 2018-2019. The results showed that the reduction in strain coverage was mainly driven by a decrease in alleles exactly matching the vaccine antigens, and a high number of unpredictable isolates was observed using the MenDeVAR method.
HUMAN VACCINES & IMMUNOTHERAPEUTICS
(2021)
Review
Microbiology
Emiliano Chiarot, Mariagrazia Pizza
Summary: This review highlights the importance and role of animal models in vaccine research, development, and licensure commitments. It discusses the advantages and limitations of different animal species and explores the potential of new in vitro and ex vivo models for advancing towards 'animal free' vaccinology.
CURRENT OPINION IN MICROBIOLOGY
(2022)
Article
Immunology
Viola Viviani, Alessia Biolchi, Mariagrazia Pizza
Summary: This article discusses the phenomenon where vaccines based on multiple antigens induce stronger immune responses, using the 4CMenB vaccine as an example. The antibody response elicited by this vaccine shows synergistic activity in complement-dependent bacterial killing. The review summarizes existing data and provides evidence for the added value of multicomponent vaccines.
EXPERT REVIEW OF VACCINES
(2022)
Article
Cell Biology
Simone Pecetta, Daniel Tortorice, Francesco Berlanda Scorza, Mariagrazia Pizza, Gordon Dougan, Richard Hatchett, Steve Black, David E. Bloom, Rino Rappuoli
Summary: New technologies and public investment have enabled the rapid development and delivery of COVID-19 vaccines, mitigating the impact of the pandemic on a global scale.
SCIENCE TRANSLATIONAL MEDICINE
(2022)
Article
Biochemical Research Methods
Maria Grazia Aruta, Daniele De Simone, Helen Dale, Esmelda Chirwa, Innocent Kadwala, Maurice Mbewe, Happy Banda, Melita Gordon, Mariagrazia Pizza, Francesco Berlanda Scorza, Tonney Nyirenda, Rocio Canals, Omar Rossi
Summary: Salmonella Typhimurium and Salmonella Enteritidis are major causative agents of invasive nontyphoidal Salmonella (iNTS) disease in sub-Saharan Africa. Large sero-epidemiological studies are needed to understand the disease burden and guide vaccine introduction. A high-throughput luminescence-based serum bactericidal assay (L-SBA) was characterized for potential use in sero-epidemiological studies and evaluation of antibodies against iNTS vaccine candidates.
METHODS AND PROTOCOLS
(2022)
Article
Cell Biology
Simone Pecetta, Arindam Nandi, Charlie Weller, Vanessa Harris, Helen Fletcher, Francesco Berlanda Scorza, Mariagrazia Pizza, David Salisbury, Richard Moxon, Steve Black, David E. Bloom, Rino Rappuoli
Summary: The health of the planet is a goal of the United Nations' Sustainable Development Goals. Vaccines can impact both human health and planet health through poverty reduction, preservation of microbial diversity, reduction in antimicrobial resistance, and prevention of increased pandemics fueled by climate change.
SCIENCE TRANSLATIONAL MEDICINE
(2023)
Article
Cell Biology
Ricardo Monteiro, Ingrid Chafsey, Nelly Caccia, Valentin Ageorges, Sabine Leroy, Didier Viala, Michel Hebraud, Valerie Livrelli, Mariagrazia Pizza, Alfredo Pezzicoli, Mickael Desvaux
Summary: Escherichia coli is a versatile species found in the animal gut that can be both a harmless commensal and a pathogenic organism causing infections. Its genetic flexibility has led to the evolution of pathogenic strains that pose a threat to global health, as well as antibiotic resistance. Despite the challenges in vaccine development due to the heterogeneity of colonization factors, targeting conserved proteins such as OmpA could be an effective approach. This study identified OmpA as a highly conserved and immunogenic antigen that plays a significant role in adhesion and aggregation of E. coli O157:H7, highlighting its potential as a potent antigen for vaccine development against intestinal pathogenic E. coli.
Article
Immunology
Samuele Irudal, Viola Camilla Scoffone, Gabriele Trespidi, Giulia Barbieri, Maura D'Amato, Simona Viglio, Mariagrazia Pizza, Maria Scarselli, Giovanna Riccardi, Silvia Buroni
Summary: The Burkholderia cepacia complex is a group of Gram-negative bacteria that infects people with weakened immune systems, such as those with cystic fibrosis. Due to their high level of antibiotic resistance, commonly used treatments are often ineffective, leading to worse outcomes and the spread of multi-drug resistance. In this study, reverse vaccinology was used to identify potential antigens for vaccination. Three proteins (BCAL1524, BCAM0949, and BCAS0335) were investigated for their localization and virulence-related properties. The findings suggest that these proteins play important roles in the virulence of Burkholderia cepacia complex and further research is needed to assess their potential as antigen candidates.
Article
Biochemical Research Methods
Alexander J. Keeley, Martina Carducci, Luisa Massai, Mariagrazia Pizza, Thushan de Silva, Danilo G. Moriel, Omar Rossi
Summary: This study establishes a four-plex assay to measure IgG antibodies against Streptococcus pyogenes vaccine antigens. The assay is highly specific, reproducible, and performs well, making it suitable for future clinical trials and seroepidemiological studies.
METHODS AND PROTOCOLS
(2022)