1
|
Michelin L, Bellei N, Ferreira da Costa Gomes M, Raboni SM, Kairalla M, Correa RA, Levi M, Chebabo A, Ballalai I, Cimerman S, Roteli-Martins CM, Aidé S, Dalcolmo MP, de Veras BMG, De Ávila Kfouri R, Cintra O. Respiratory syncytial virus: challenges in diagnosis and impact on the elderly: Recommendations from a multidisciplinary panel. Hum Vaccin Immunother 2024; 20:2388943. [PMID: 39161095 PMCID: PMC11340750 DOI: 10.1080/21645515.2024.2388943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024] Open
Abstract
Respiratory syncytial virus (RSV) is an important cause of respiratory illness. While most attention is paid to childhood infection, the RSV burden in adults ≥60 y should also be considered. In Brazil, this is generally underrecognized, where greater focus is toward other respiratory pathogens. This article presents insights from a multidisciplinary panel gathered to review epidemiologic data and current diagnostic approaches to RSV in Brazil (and their limitations) and develop communication strategies to improve knowledge and awareness. National surveillance data indicate a steady increase in cases of RSV-related severe acute respiratory illness (RSV-SARI) in those aged ≥60 y in recent years, with high fatality rates (>30%). Routine RSV testing in older individuals with respiratory symptoms is relatively low. Educational activities targeted toward health-care professionals and the general public are critical to raising awareness of the importance of RSV in older individuals, particularly as protective vaccines are now available.
Collapse
Affiliation(s)
| | - Nancy Bellei
- Laboratório de Virologia Clínica, Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina (EPM), Disciplina de Infectologia, São Paulo, Brazil
| | | | - Sonia M Raboni
- Molecular Virology Research Laboratory, Universidade Federal do Paraná, Curitiba, Brazil
| | | | - Ricardo Amorim Correa
- Departamento de Clínica Médica, Serviço de Pneumologia, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Monica Levi
- Sociedade Brasileira de Imunizações (SBim), São Paulo, Brazil
| | - Alberto Chebabo
- Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Isabela Ballalai
- Sociedade Brasileira de Imunizações (SBim), Rio de Janeiro, Brazil
| | - Sergio Cimerman
- Sociedade Brasileira de Imunizações (SBim), São Paulo, Brazil
- Instituto de Infectologia Emílio Ribas, São Paulo, Brazil
- Universidade Paulista (UNIP) - Campus Alphaville, São Paulo, Brazil
| | | | - Susana Aidé
- Maternal and Child Department, Faculty of Medicine, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | | | | | - Renato De Ávila Kfouri
- Universidade Federal de Sao Paulo, Sao Paulo, Brazil
- Sociedade Brasileira de Imunizações (SBim), São Paulo, Brazil
| | | |
Collapse
|
2
|
Riccò M, Cascio A, Corrado S, Bottazzoli M, Marchesi F, Gili R, Giuri PG, Gori D, Manzoni P. Occurrence of Central Nervous System Complications of Respiratory Syncytial Virus Infections: A Systematic Review with Meta-Analysis. EPIDEMIOLOGIA 2024; 5:421-455. [PMID: 39051211 PMCID: PMC11270441 DOI: 10.3390/epidemiologia5030031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 07/16/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024] Open
Abstract
An increasing base of evidence suggests that respiratory syncytial virus (RSV) infections may be associated with neurological complications. In accord with the PRISMA statement, we performed a systematic review and meta-analysis on the occurrence of encephalitis and encephalopathy associated with documented RSV infections. PubMed, Embase, and Scopus databases were searched for eligible observational studies published up to 10 April 2024. Raw data included the occurrence of RSV infections among cases of encephalitis and/or encephalopathy and cases of encephalitis and/or encephalopathy among series of RSV infections. Data were pooled in a random effects model. Case reports were also collected, and their data pooled as a cumulative series. Heterogeneity was assessed using the I2 measure, while reporting bias was assessed by means of funnel plots and regression analysis. A total of 15 studies for a total of 7719 RSV infections and 1631 cases of encephalitis were analyzed. Moreover, 27 case reports and case series were retrieved, for a total of 84 individual cases of encephalitis/encephalopathy occurring during a documented RSV infection. A pooled prevalence of 2.20 cases of encephalitis/encephalopathy per 100 RSV cases (I2 = 99%) was calculated, while a prevalence of RSV infections among cases of encephalitis/encephalopathy was estimated to 3.53 per 100 cases for studies on respiratory specimens (I2 = 48%) and 0.37 per cases on central nervous system (CNS) specimens (I2 = 0%). Detection of RSV within the CNS was relatively rare (17.86% of pooled case reports), being associated with male gender (adjusted odds ratio [aOR] 5.021, 95% confidence interval [95%CI] 1.104 to 22.831) and recovery with long-term sequelae (aOR 5.699, 95%CI 1.152; 28.183). Case fatality ratio was estimated to be 0.43 per 100 cases on observational studies and 10.71% in case reports, a difference likely due to publication bias. In summary, RSV represented a not frequent but notable cause of encephalitis/encephalopathy in adults and children. The paucity of available studies not only recommends a cautious appraisal of our results but stresses the clinical significance of future studies on incident cases of encephalitis and/or encephalopathy.
Collapse
Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | - Antonio Cascio
- Infectious and Tropical Diseases Unit, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, “G D’Alessandro”, University of Palermo, AOUP P. Giaccone, 90127 Palermo, Italy;
| | - Silvia Corrado
- ASST Rhodense, Dipartimento della donna e Area Materno-Infantile, UOC Pediatria, 20024 Milan, Italy
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Renata Gili
- Department of Prevention, Turin Local Health Authority, 10125 Torino, Italy
| | | | - Davide Gori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Paolo Manzoni
- Department of Public Health and Pediatric Sciences, University of Torino School of Medicine, 10125 Turin, Italy
| |
Collapse
|
3
|
Shinkai M, Ota S, Ishikawa N, Tanimoto T, Suzuki H, Abe S, Vandendijck Y, Nakayama Y, Murata Y. Burden of respiratory syncytial virus, human metapneumovirus and influenza virus infections in Japanese adults in the Hospitalized Acute Respiratory Tract Infection study. Respir Investig 2024; 62:717-725. [PMID: 38823191 DOI: 10.1016/j.resinv.2024.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Respiratory syncytial virus (RSV), human metapneumovirus (hMPV), and influenza virus are responsible for acute respiratory tract infections (ARTIs) in adults. We assessed the clinical burden of RSV, hMPV and influenza virus infection among Japanese adults hospitalized with ARTIs. METHODS The Hospitalized Acute Respiratory Tract Infection (HARTI) study was a multinational, prospective cohort study in adults with ARTIs across the 2017-2019 epidemic seasons. Enrolment in Japan began in Sept 2018 and ran until Oct 2019. The clinical diagnosis of ARTI and the decision to hospitalize the patient were made according to local standard of care practices. Viral testing was performed by reverse transcription polymerase chain reaction. RESULTS Of the 173 adults hospitalized with ARTI during this period at the Japan sites, 7 (4.0%), 9 (5.2%), and 11 (6.4%) were positive for influenza virus, RSV, and hMPV, respectively. RSV season was observed from Oct 2018 to Jan 2019, followed by influenza from Dec 2018 to Apr 2019. hMPV was detected across both the RSV and influenza seasons. Two patients with RSV and 1 patient with hMPV required ICU admission whereas none with influenza. Use of antibiotics, bronchodilators and inhaled corticosteroids was high amongst patients with RSV and hMPV at 1, 2, and 3 months' post-discharge compared with patients with influenza, with few exceptions. CONCLUSION These findings highlight the need for a high degree of clinical suspicion for RSV and hMPV infection in adults hospitalized with ARTIs.
Collapse
Affiliation(s)
- Masaharu Shinkai
- Department of Respiratory Medicine, Tokyo Shinagawa Hospital, 6-3-22 Higashioi, Shinagawa-ku, Tokyo, 140-8522, Japan.
| | - Shinichiro Ota
- Department of Respiratory Medicine, Tokyo Shinagawa Hospital, 6-3-22 Higashioi, Shinagawa-ku, Tokyo, 140-8522, Japan
| | - Nobuhisa Ishikawa
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, 1-5-54 Ujina-kanda, Minami-ku, Hiroshima, 734-8530, Japan
| | - Takuya Tanimoto
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, 1-5-54 Ujina-kanda, Minami-ku, Hiroshima, 734-8530, Japan
| | - Hiroki Suzuki
- Department of Respiratory Medicine, Yamagata Prefectural Central Hospital, 1800 Aoyagi, Yamagata-Shi, Yamagata, 990-2292, Japan
| | - Shuichi Abe
- Department of Infectious Diseases and Infection Control, Yamagata Prefectural Central Hospital, 1800 Aoyagi, Yamagata-Shi, Yamagata, 990-2292, Japan
| | - Yannick Vandendijck
- Janssen Research & Development, LLC, Turnhoutseweg 30, B-2340, Beerse, Belgium
| | - Yoshikazu Nakayama
- Janssen Pharmaceutical K.K., 3-5-2 Nishi-kanda, Chiyoda-ku, Tokyo, 101-0065, Japan
| | - Yoko Murata
- Janssen Pharmaceutical K.K., 3-5-2 Nishi-kanda, Chiyoda-ku, Tokyo, 101-0065, Japan
| |
Collapse
|
4
|
Riccò M, Corrado S, Bottazzoli M, Marchesi F, Gili R, Bianchi FP, Frisicale EM, Guicciardi S, Fiacchini D, Tafuri S. RSV Infection in Refugees and Asylum Seekers: A Systematic Review and Meta-Analysis. EPIDEMIOLOGIA 2024; 5:221-249. [PMID: 38920751 PMCID: PMC11202732 DOI: 10.3390/epidemiologia5020016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 06/27/2024] Open
Abstract
Respiratory diseases, including respiratory syncytial virus (RSV) infections, are common reasons for seeking healthcare among refugees and asylum seekers. A systematic review with meta-analysis was designed to appraise all the available evidence on RSV infections among individuals in refugee camps. Three medical databases (PubMed, Embase, and Scopus) as well as the preprint repository medRxiv.org were searched for eligible observational studies, and the collected cases were pooled in a random-effects meta-analysis model. Heterogeneity was assessed using the I2 statistics. Funnel plots and a regression analysis were calculated for analyzing reporting bias. Eventually, six studies were retrieved from three areas (Bangladesh, Thailand, and Kenya), with pooled estimates of 129.704 cases per 1000 samples (95% CI 66.393 to 237.986) for RSV compared to 110.287 per 1000 people for influenza A (95% CI 73.186 to 162.889), 136.398 cases per 1000 people (95% CI 84.510 to 212.741) for human adenovirus (HAdV), 69.553 per 1000 people (95% CI 49.802 to 96.343) for parainfluenzavirus (PIFV), and 60.338 per 1000 people (95% CI 31.933 to 111.109) for human metapneumovirus (hMPV). Using influenza A as a reference group, the risk for a positive specimen was greater for RSV (relative risk [RR] 1.514, 95% CI 1.396 to 1.641) and HAdV (RR 1.984, 95% CI 1.834 to 2.146) and lower for influenza B (RR 0.276, 95% CI: 0.239 to 0.319), PIFV (RR: 0.889, 95% CI 0.806 to 0.981), and hMPV (RR 0.594, 95% CI 0.534 to 0.662). In summary, high rates of RSV infections were documented among individuals sheltered in refugee camps, stressing the importance of specifically designed preventive strategies.
Collapse
Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | - Silvia Corrado
- ASST Rhodense, Dipartimento Della Donna e Area Materno-Infantile, UOC Pediatria, 20024 Garbagnate Milanese, Italy;
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy;
| | - Renata Gili
- Department of Prevention, Turin Local Health Authority, Via Silvio Pellico 19, 10125 Turin, Italy
| | | | | | - Stefano Guicciardi
- Health Directorate, Local Health Authority of Bologna, 40127 Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40127 Bologna, Italy
| | - Daniel Fiacchini
- AST Ancona, Prevention Department, UOC Sorveglianza e Prevenzione Malattie Infettive e Cronico Degenerative, 60127 Ancona, Italy
| | - Silvio Tafuri
- Department of Interdisciplinary Medicine, Aldo Moro University of Bari, 70121 Bari, Italy
| |
Collapse
|
5
|
Riccò M, Cascio A, Corrado S, Bottazzoli M, Marchesi F, Gili R, Giuri PG, Gori D, Manzoni P. Efficacy of Respiratory Syncytial Virus Vaccination to Prevent Lower Respiratory Tract Illness in Older Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Vaccines (Basel) 2024; 12:500. [PMID: 38793751 PMCID: PMC11126042 DOI: 10.3390/vaccines12050500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
A systematic review and meta-analysis was designed in order to ascertain the effectiveness of respiratory syncytial virus (RSV) vaccination in preventing lower respiratory tract diseases (LRTD) in older adults (age ≥ 60 years). Studies reporting on randomized controlled trials (RCTs) were searched for in three databases (PubMed, Embase, and Scopus) and the preprint repository medRxiv until 31 March 2024. A total of nine studies were eventually included, two of which were conference proceedings. Our analysis included five RCTs on five RSV vaccines (RSVpreF, RSVPreF3, Ad26.RSV.preF, MEDI7510, and mRNA-1345). The meta-analysis documented a pooled vaccine efficacy of 81.38% (95% confidence interval (95% CI) 70.94 to 88.06) for prevention of LRTD with three or more signs/symptoms during the first RSV season after the delivery of the vaccine. Follow-up data were available for RSVPreF3 (2 RSV seasons), RSVpreF (mid-term estimates of second RSV season), and mRNA-1345 (12 months after the delivery of the primer), with a pooled VE of 61.15% (95% CI 45.29 to 72.40). After the first season, the overall risk for developing RSV-related LRTD was therefore substantially increased (risk ratio (RR) 4.326, 95% CI 2.415; 7.748). However, all estimates were affected by substantial heterogeneity, as suggested by the 95% CI of I2 statistics, which could be explained by inconsistencies in the design of the parent studies, particularly when dealing with case definition. In conclusion, adult RSV vaccination was quite effective in preventing LRTD in older adults, but the overall efficacy rapidly decreased in the second season after the delivery of the vaccine. Because of the heterogenous design of the parent studies, further analyses are required before tailoring specific public health interventions.
Collapse
Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | - Antonio Cascio
- Infectious and Tropical Diseases Unit, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, “G D’Alessandro”, University of Palermo, AOUP P. Giaccone, 90127 Palermo, Italy;
| | - Silvia Corrado
- ASST Rhodense, Dipartimento della donna e Area Materno-Infantile, UOC Pediatria, 20024 Milano, Italy
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Renata Gili
- Department of Prevention, Turin Local Health Authority, 10125 Torino, Italy
| | | | - Davide Gori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy;
| | - Paolo Manzoni
- Department of Public Health and Pediatric Sciences, University of Torino School of Medicine, 10125 Turin, Italy;
| |
Collapse
|
6
|
Boattini M, Almeida A, Comini S, Bianco G, Cavallo R, Costa C. From Forgotten Pathogen to Target for New Vaccines: What Clinicians Need to Know about Respiratory Syncytial Virus Infection in Older Adults. Viruses 2024; 16:531. [PMID: 38675874 PMCID: PMC11053843 DOI: 10.3390/v16040531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Respiratory syncytial virus (RSV) is increasingly recognized as being implicated in acute illness in older adults, with a significant weight in hospitalizations for respiratory illness and death. By means of a best-evidence review, this paper aims to investigate whether RSV can be considered a forgotten pathogen in older patients, looking at trends in the literature volume and exploring possible epidemiological and clinical features underlying the focus given to it. We then present an assessment of its disease burden and present and future strategies for its reduction, particularly in light of the recent availability of new vaccines.
Collapse
Affiliation(s)
- Matteo Boattini
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy; (G.B.)
- Department of Public Health and Paediatrics, University of Torino, 10126 Turin, Italy
- Lisbon Academic Medical Centre, 1649-028 Lisbon, Portugal
| | - André Almeida
- Department of Internal Medicine 4, Centro Hospitalar Universitário de Lisboa Central, Centro Clínico Académico de Lisboa, 1169-024 Lisbon, Portugal;
- NOVA Medical School, Universidade Nova de Lisboa, Centro Clínico Académico de Lisboa, 1169-056 Lisbon, Portugal
| | - Sara Comini
- Operative Unit of Clinical Pathology, Carlo Urbani Hospital, 60035 Jesi, Italy
| | - Gabriele Bianco
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy; (G.B.)
- Department of Public Health and Paediatrics, University of Torino, 10126 Turin, Italy
- Department of Experimental Medicine, University of Salento, Via Provinciale Monteroni n. 165, 73100 Lecce, Italy
| | - Rossana Cavallo
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy; (G.B.)
- Department of Public Health and Paediatrics, University of Torino, 10126 Turin, Italy
| | - Cristina Costa
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, 10126 Turin, Italy; (G.B.)
- Department of Public Health and Paediatrics, University of Torino, 10126 Turin, Italy
| |
Collapse
|
7
|
Riccò M, Parisi S, Corrado S, Marchesi F, Bottazzoli M, Gori D. Respiratory Syncytial Virus Infections in Recipients of Bone Marrow Transplants: A Systematic Review and Meta-Analysis. Infect Dis Rep 2024; 16:317-355. [PMID: 38667752 PMCID: PMC11050314 DOI: 10.3390/idr16020026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Human Respiratory Syncytial Virus (RSV) is a common cause of respiratory tract infections. Usually associated with infants and children, an increasing amount of evidence suggests that RSV can cause substantial morbidity and mortality in immunocompromised individuals, including recipients of bone marrow transplantation (BMT). The present systematic review was therefore designed in accordance with the PRISMA guidelines to collect available evidence about RSV infections in BMT recipients. Three medical databases (PubMed, Embase, and MedRxiv) were therefore searched for eligible observational studies published up to 30 September 2023 and collected cases were pooled in a random-effects model. Heterogeneity was assessed using I2 statistics. Reporting bias was assessed by means of funnel plots and regression analysis. Overall, 30 studies were retrieved, including 20,067 BMT cases and 821 RSV infection episodes. Of them, 351 were lower respiratory tract infections, and a total of 78 RSV-related deaths were collected. A pooled attack rate of 5.40% (95% confidence interval [95%CI] 3.81 to 7.60) was identified, with a corresponding incidence rate of 14.77 cases per 1000 person-years (95%CI 9.43 to 20.11), and a case fatality ratio (CFR) of 7.28% (95%CI 4.94 to 10.60). Attack rates were higher in adults (8.49%, 95%CI 5.16 to 13.67) than in children (4.79%, 95%CI 3.05 to 7.45), with similar CFR (5.99%, 95%CI 2.31 to 14.63 vs. 5.85%, 95%CI 3.35 to 10.02). By assuming RSV attack rates as a reference group, influenza (RR 0.518; 95%CI 0.446 to 0.601), adenovirus (RR 0.679, 95%CI 0.553 to 0.830), and human metapneumovirus (RR 0.536, 95%CI 0.438 to 0.655) were associated with a substantially reduced risk for developing corresponding respiratory infection. Despite the heterogeneous settings and the uneven proportion of adult and pediatric cases, our study has identified high attack rates and a substantial CFR of RSV in recipients of BMT, stressing the importance of specifically tailored preventive strategies and the need for effective treatment options.
Collapse
Affiliation(s)
- Matteo Riccò
- AUSL–IRCCS di Reggio Emilia, Servizio di Prevenzione e Sicurezza Negli Ambienti di Lavoro (SPSAL), Local Health Unit of Reggio Emilia, 42122 Reggio Emilia, Italy
| | | | - Silvia Corrado
- ASST Rhodense, Dipartimento della donna e Area Materno-Infantile, UOC Pediatria, 20024 Milan, Italy;
| | - Federico Marchesi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Marco Bottazzoli
- Department of Otorhinolaryngology, APSS Trento, 38122 Trento, Italy
| | - Davide Gori
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| |
Collapse
|
8
|
Domnich A, Calabrò GE. Epidemiology and burden of respiratory syncytial virus in Italian adults: A systematic review and meta-analysis. PLoS One 2024; 19:e0297608. [PMID: 38442123 PMCID: PMC10914269 DOI: 10.1371/journal.pone.0297608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/17/2024] [Indexed: 03/07/2024] Open
Abstract
OBJECTIVE Respiratory syncytial virus (RSV) is a common respiratory pathogen not only in children, but also in adults. In view of a recent authorization of adult RSV vaccines in Italy, our research question was to quantify the epidemiology and burden of RSV in Italian adults. METHODS Observational studies on the epidemiology and clinical burden of laboratory-confirmed or record-coded RSV infection in Italian adults of any age were eligible. Studies with no separate data for Italian adults, modeling and other secondary publications were excluded. A literature search was performed in MEDLINE, Biological Abstracts, Global Health, Scopus and Web of Science on 22 November 2023. Critical appraisal was performed by means of a Joanna Briggs Institute checklist. Random-effects (RE) meta-analysis was performed to obtain pooled estimates and the observed heterogeneity was investigated by subgroup and meta-regression analyses. The protocol was prospectively registered (doi.org/10.17504/protocols.io.5qpvo32odv4o/v1). RESULTS Thirty-five studies were identified, most of which had at least one possible quality concern. RSV seasonal attack rates ranged from 0.8 ‰ in community-dwelling older adults to 10.9% in hematological outpatients. In the RE model, 4.5% (95% CI: 3.2-5.9%) of respiratory samples tested positive for RSV. This positivity prevalence was higher in older adults (4.4%) than in working-age adults (3.5%) and in outpatient (4.9%) than inpatient (2.9%) settings. According to the meta-regression, study location and sample size were also significant predictors of RSV detection frequency. The pooled estimate of in-hospital mortality was as high as 7.2% (95% CI: 4.7-10.3%). Data on other indicators of the diseases burden, such as complication and hospitalization rates, were unavailable. CONCLUSION RSV poses a measurable burden on Italian adults, especially those of older age and with some co-morbidities. However, several data on the natural history of RSV disease are missing and should be established by future large-scale studies.
Collapse
Affiliation(s)
- Alexander Domnich
- Hygiene Unit, San Martino Policlinico Hospital-IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Giovanna Elisa Calabrò
- Section of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy
| |
Collapse
|
9
|
Fröhlich GC, Gregianini TS, Pinheiro FG, Nascimento R, Cezar TM, Pscheidt VM, Selayaran T, Martins LG, Gomes MFDC, Salvato RS, Pereira EC, Guimarães-Ribeiro V, Scalioni LDP, Siqueira MM, Resende PC, Veiga ABG. Resurgence of human respiratory syncytial virus during COVID-19 pandemic in Southern Brazil. J Med Virol 2024; 96:e29551. [PMID: 38506236 DOI: 10.1002/jmv.29551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/16/2024] [Accepted: 03/10/2024] [Indexed: 03/21/2024]
Abstract
Respiratory Syncytial Virus (RSV) is an important cause of respiratory infection in humans. Severe cases are common in children ≤2 years old, immunocompromised individuals, and the elderly. In 2020, RSV infection reduced in Rio Grande do Sul (RS), southern Brazil; however, in 2021 resurgence of RSV was observed. This study analyzed epidemiological and genetic features of RSV infection cases reported in 2021 in RS. Nasopharyngeal samples collected from individuals with respiratory infection negative for SARS-CoV-2, Influenza A and B viruses were assessed for the presence of RSV by real time RT-qPCR. RSV-A and RSV-B genomic sequencing and phylogenetic reconstructions were performed for genotyping and clade characterization. Among 21,035 respiratory samples analyzed, 2,947 were positive for RSV, 947 of which were hospitalized patients. Positive cases were detected year-round, with the highest number in June-July (winter). Children <1 year comprised 56.28% (n = 533) of the hospitalized patients infected with RSV, whereas 14.46% (n = 137) were individuals >60 years. Of a total of 361 deaths, 14.68% (n = 53) were RSV positive, mostly patients >60 years old (73.58%, n = 39). Chronic kidney disease, cardiopathy, Down syndrome and neurological diseases were associated with RSV infection. RSV-A was identified in 58.5% (n = 117/200) of the patients, and RSV-B in 41.5% (n = 83/200). Of 95 RSV genomes recovered from SARI cases, 66 were RSV-A GA.2.3.5 genotype, while 29 were RSV-B GB.5.0.5a genotype. This study provides epidemiological and molecular data on RSV cases in RS during the COVID-19 pandemic and highlights that investigation of different respiratory viruses is essential for decision-making and disease prevention and control measures.
Collapse
Affiliation(s)
- Guilherme C Fröhlich
- Laboratório Central de Saúde Pública, Centro Estadual de Vigilância em Saúde da Secretaria de Saúde do Estado do Rio Grande do Sul-LACEN/CEVS/SES-RS, Porto Alegre, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Tatiana S Gregianini
- Laboratório Central de Saúde Pública, Centro Estadual de Vigilância em Saúde da Secretaria de Saúde do Estado do Rio Grande do Sul-LACEN/CEVS/SES-RS, Porto Alegre, Brazil
| | - Felipe G Pinheiro
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Rodrigo Nascimento
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Thiago M Cezar
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Veridiane M Pscheidt
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Tainá Selayaran
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
- Centro de Desenvolvimento Científico e Tecnológico, Centro Estadual de Vigilância em Saúde da Secretaria de Saúde do Estado do Rio Grande do Sul-CDCT/CEVS/SES-RS, Porto Alegre, Brazil
| | - Letícia G Martins
- Centro Estadual de Vigilância em Saúde da Secretaria de Saúde do Estado do Rio Grande do Sul-CEVS/SES-RS, Porto Alegre, Brazil
| | | | - Richard S Salvato
- Centro de Desenvolvimento Científico e Tecnológico, Centro Estadual de Vigilância em Saúde da Secretaria de Saúde do Estado do Rio Grande do Sul-CDCT/CEVS/SES-RS, Porto Alegre, Brazil
| | - Elisa C Pereira
- Laboratório Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais - LVRE/FIOCRUZ-RJ, Porto Alegre, Brazil
| | - Victor Guimarães-Ribeiro
- Laboratório Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais - LVRE/FIOCRUZ-RJ, Porto Alegre, Brazil
| | - Letícia de Paula Scalioni
- Laboratório Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais - LVRE/FIOCRUZ-RJ, Porto Alegre, Brazil
| | - Marilda M Siqueira
- Laboratório Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais - LVRE/FIOCRUZ-RJ, Porto Alegre, Brazil
| | - Paola C Resende
- Laboratório Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências Virais - LVRE/FIOCRUZ-RJ, Porto Alegre, Brazil
| | - Ana B G Veiga
- Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| |
Collapse
|
10
|
Ponticelli D, Losa L, Antonazzo IC, Zampella A, Di Marino F, Mottola G, Fede MN, Gallucci F, Magliuolo R, Rainone A, Arcari A, Del Giudice C, Ferrara P. Respiratory Syncytial Virus (RSV) and Intention to Recommend RSV Vaccination: A Cross-Sectional Survey of Cardiologists and Cardiac Nurses in Southern Italy. Infect Dis Rep 2024; 16:128-141. [PMID: 38391588 PMCID: PMC10888396 DOI: 10.3390/idr16010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/05/2024] [Accepted: 02/10/2024] [Indexed: 02/24/2024] Open
Abstract
As respiratory syncytial virus (RSV) vaccine distribution gains traction in Europe and Italy, healthcare workers (HCWs) can strategize about vaccine promotion to increase uptake among patients at risk of RSV consequences, such cardiac patients. This cross-sectional survey investigated the knowledge about and attitude towards RSV and RSV vaccines, and the intention to recommend vaccination within a cardiological hospital in Italy. To explore factors associated with the outcomes of interest, multivariate logistic regression analyses were conducted. Of 197 invited HCWs, 78.2% returned the survey. The knowledge about market authorisation for new RSV vaccines for older adults (present in 46.9% of respondents) was significantly associated with the HCWs' age, education, and previous update on vaccinations. HCWs with a higher educational level and those with a positive attitude towards RSV vaccines safety reported a higher attitude towards the importance of vaccinating people at risk. The willingness of recommending RSV vaccination to patients (70.5% of respondents) was more likely in HCWs who were knowledgeable about market authorisation for RSV vaccines and in physicians. This tempestive research sheds light on current factors influencing the strategies of cardiac HCWs regarding RSV vaccination. The results suggest the need for training events on the protective role of RSV vaccination in cardiac patients.
Collapse
Affiliation(s)
| | - Lorenzo Losa
- Center for Public Health Research, University of Milan-Bicocca, 20900 Monza, Italy
| | - Ippazio Cosimo Antonazzo
- Center for Public Health Research, University of Milan-Bicocca, 20900 Monza, Italy
- Laboratory of Public Health, IRCCS Istituto Auxologico Italiano, 20165 Milan, Italy
| | | | | | | | | | | | | | | | | | | | - Pietro Ferrara
- Center for Public Health Research, University of Milan-Bicocca, 20900 Monza, Italy
- Laboratory of Public Health, IRCCS Istituto Auxologico Italiano, 20165 Milan, Italy
| |
Collapse
|
11
|
Osei-Yeboah R, Spreeuwenberg P, Del Riccio M, Fischer TK, Egeskov-Cavling AM, Bøås H, van Boven M, Wang X, Lehtonen T, Bangert M, Campbell H, Paget J. Estimation of the Number of Respiratory Syncytial Virus-Associated Hospitalizations in Adults in the European Union. J Infect Dis 2023; 228:1539-1548. [PMID: 37246742 PMCID: PMC10681866 DOI: 10.1093/infdis/jiad189] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is a major cause of lower respiratory tract infections in adults that can result in hospitalizations. Estimating RSV-associated hospitalization is critical for planning RSV-related healthcare across Europe. METHODS We gathered RSV-associated hospitalization estimates from the RSV Consortium in Europe (RESCEU) for adults in Denmark, England, Finland, Norway, Netherlands, and Scotland from 2006 to 2017. We extrapolated these estimates to 28 European Union (EU) countries using nearest-neighbor matching, multiple imputations, and 2 sets of 10 indicators. RESULTS On average, 158 229 (95% confidence interval [CI], 140 865-175 592) RSV-associated hospitalizations occur annually among adults in the EU (≥18 years); 92% of these hospitalizations occur in adults ≥65 years. Among 75-84 years, the annual average is estimated at 74 519 (95% CI, 69 923-79 115) at a rate of 2.24 (95% CI, 2.10-2.38) per 1000. Among ≥85 years, the annual average is estimated at 37 904 (95% CI, 32 444-43 363) at a rate of 2.99 (95% CI, 2.56-3.42). CONCLUSIONS Our estimates of RSV-associated hospitalizations in adults are the first analysis integrating available data to provide the disease burden across the EU. Importantly, for a condition considered in the past to be primarily a disease of young children, the average annual hospitalization estimate in adults was lower but of a similar magnitude to the estimate in young children (0-4 years): 158 229 (95% CI, 140 865-175 592) versus 245 244 (95% CI, 224 688-265 799).
Collapse
Affiliation(s)
- Richard Osei-Yeboah
- Centre for Global Health, Usher Institute, University of Edinburgh, United Kingdom
| | - Peter Spreeuwenberg
- Netherlands Institute for Health Services Research, Utrecht, The Netherlands
| | - Marco Del Riccio
- Netherlands Institute for Health Services Research, Utrecht, The Netherlands
- Postgraduate Medical School in Public Health, University of Florence, Italy
| | - Thea K Fischer
- Department of Virus and Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
- Department of Clinical Research, Nordsjaellands Hospital, Hilleroed and Public Health, University of Copenhagen, Denmark
| | - Amanda Marie Egeskov-Cavling
- Department of Virus and Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
- Department of Clinical Research, Nordsjaellands Hospital, Hilleroed and Public Health, University of Copenhagen, Denmark
| | - Håkon Bøås
- Department of Infection Control and Vaccines, Norwegian Institute of Public Health, Oslo
| | - Michiel van Boven
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Xin Wang
- School of Public Health, Nanjing Medical University, China
| | - Toni Lehtonen
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki
| | | | - Harry Campbell
- Centre for Global Health, Usher Institute, University of Edinburgh, United Kingdom
| | - John Paget
- Netherlands Institute for Health Services Research, Utrecht, The Netherlands
| |
Collapse
|
12
|
Njue A, Nuabor W, Lyall M, Margulis A, Mauskopf J, Curcio D, Kurosky S, Gessner BD, Begier E. Systematic Literature Review of Risk Factors for Poor Outcomes Among Adults With Respiratory Syncytial Virus Infection in High-Income Countries. Open Forum Infect Dis 2023; 10:ofad513. [PMID: 38033988 PMCID: PMC10686344 DOI: 10.1093/ofid/ofad513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/18/2023] [Indexed: 12/02/2023] Open
Abstract
Identification of risk factors for severe respiratory syncytial virus (RSV) disease in adults could facilitate their appropriate vaccine recommendations. We conducted a systematic literature review (last 10 years in PubMed/Embase) to identify quantitative estimates of risk factors for severe RSV infection outcomes in high-income countries. Severe outcomes from RSV infection included hospitalization, excess mortality, lower respiratory tract infection, or a composite measure: severe RSV, which included these outcomes and others, such as mechanical ventilation and extended hospital stay. Among 1494 articles screened, 26 met eligibility criteria. We found strong evidence that the following increased the risk of severe outcomes: age, preexisting comorbid conditions (eg, cardiac, pulmonary, and immunocompromising diseases, as well as diabetes and kidney disease), and living conditions (socioeconomic status and nursing home residence). The frequency of severe outcomes among younger adults with comorbidities was generally similar to that experienced by older adults, suggesting that immunosenescence and chronic conditions are both contributing factors for elevated risk. Trial registration PROSPERO (CRD42022315239).
Collapse
Affiliation(s)
- Annete Njue
- Department of Market Access and Outcomes Strategy, RTI Health Solutions, Manchester, UK
| | - Weyinmi Nuabor
- Department of Market Access and Outcomes Strategy, RTI Health Solutions, Manchester, UK
| | - Matthew Lyall
- Department of Market Access and Outcomes Strategy, RTI Health Solutions, Manchester, UK
| | - Andrea Margulis
- Department of Pharmacoepidemiology and Risk Management, RTI Health Solutions, Barcelona, Spain
| | - Josephine Mauskopf
- Department of Health Economics, RTI Health Solutions, Research Triangle Park, North Carolina, USA
| | - Daniel Curcio
- Global Medical Development & Scientific Affairs, Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| | - Samantha Kurosky
- Global Medical Development & Scientific Affairs, Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| | - Bradford D Gessner
- Global Medical Development & Scientific Affairs, Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| | - Elizabeth Begier
- Global Medical Development & Scientific Affairs, Pfizer Vaccines, Pfizer Inc, Collegeville, Pennsylvania, USA
| |
Collapse
|
13
|
Wrotek A, Wrotek O, Jackowska T. The Impact of RSV Hospitalization on Children's Quality of Life. Diseases 2023; 11:111. [PMID: 37754307 PMCID: PMC10528181 DOI: 10.3390/diseases11030111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is one of the most frequent etiological factors of lower respiratory tract infections in children, potentially affecting patients' quality of life (QoL). We aimed to asses QoL in children under 2 years of age hospitalized due to laboratory-confirmed RSV infection. METHODS A QoL was assessed by parents/tutors with the use of the 100-point visual analog scale and compared against a disease-free period. We evaluated the median utility, QoL loss (reported in days), and quality-adjusted life years (QALY) loss in relation to RSV hospitalization. RESULTS We included 132 patients aged from 17 days to 24 months (median 3.8 months). The mean utility during the hospitalization varied between 0.418 and 0.952, with a median of 0.679 (95%CI: 0.6-0.757) and median loss of 0.321 [0.243-0.4], which further translated into a loss of 2.2 days (95%CI: 1.6-3.1). The QALY loss varied between 0.526 × 10-3 and 24.658 × 10-3, with a median of 6.03 × 10-3 (95%CI: 4.38-8.48 × 10-3). Based upon the final diagnoses, the highest QALY loss was 6.99 × 10-3 (95%CI: 5.29-13.7 × 10-3) for pneumonia, followed by bronchiolitis-5.96 × 10-3 (4.25-8.41 × 10-3) and bronchitis-4.92 × 10-3 (2.93-6.03 × 10-3); significant differences were observed only between bronchitis and pneumonia (p = 0.0171); the QALY loss was not age-dependent. Although an increasing tendency in the utility score was observed, a strong cumulative effect related to the length of stay was noted until day 13. CONCLUSIONS RSV contributes significantly to the utility deterioration and QALY loss in the case of RSV hospitalization, and the patient-reported data should be used in pharmacoeconomic assessments of the impact of RSV.
Collapse
Affiliation(s)
- August Wrotek
- Department of Pediatrics, Centre of Postgraduate Medical Education, 99/103 Marymoncka Str., 01-813 Warsaw, Poland;
- Department of Pediatrics, Bielanski Hospital, 80 Cegłowska Str., 01-809 Warsaw, Poland
| | - Oliwia Wrotek
- Student Research Group, Bielanski Hospital, 80 Cegłowska Str., 01-809 Warsaw, Poland
| | - Teresa Jackowska
- Department of Pediatrics, Centre of Postgraduate Medical Education, 99/103 Marymoncka Str., 01-813 Warsaw, Poland;
- Department of Pediatrics, Bielanski Hospital, 80 Cegłowska Str., 01-809 Warsaw, Poland
| |
Collapse
|
14
|
Grace M, Colosia A, Wolowacz S, Panozzo C, Ghaswalla P. Economic burden of respiratory syncytial virus infection in adults: a systematic literature review. J Med Econ 2023:1-60. [PMID: 37167068 DOI: 10.1080/13696998.2023.2213125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
AIMS Capture the economic and healthcare resource utilization (HCRU) burden in older adults due to respiratory syncytial virus (RSV) infection. METHODS An electronic literature search of PubMed, Embase, the Cochrane Library, PsycINFO, and EconLit was conducted for studies of the cost and HCRU outcomes of RSV infection in adult patients, with no language or country restrictions. Search dates for primary studies were January 1, 2002-May 18, 2022. The methodological quality of included studies was assessed using a modification of the Critical Appraisal Skills Programme (CASP) checklist for economic studies and the Drummond checklist. RESULTS 42 studies were identified that reported cost or HCRU data associated with RSV infections, with geographic locations across North America, South America, Europe, Asia, and Oceania. Generally, hospitalization costs were highest in the United States (US). Driving factors of increased cost included older age, comorbidities, and length of stay. US studies found that the national direct cost burden of RSV hospitalizations was $1.3 billion for all adults and $1.5-$4.0 billion for adults aged ≥60 years (estimates for other countries were not identified). Studies estimating incremental costs for RSV cases versus controls and costs pre- and post-RSV infection demonstrated higher costs for RSV cases. Hospitalizations accounted for the majority of total costs.
Collapse
Affiliation(s)
- Mei Grace
- RTI Health Solutions, Research Triangle Park, NC, USA
| | - Ann Colosia
- RTI Health Solutions, Research Triangle Park, NC, USA
| | | | | | | |
Collapse
|
15
|
Molecular Mechanisms of RSV and Air Pollution Interaction: A Scoping Review. Int J Mol Sci 2022; 23:ijms232012704. [PMID: 36293561 PMCID: PMC9604398 DOI: 10.3390/ijms232012704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
RSV is one of the major infectious agents in paediatrics, and its relationship with air pollution is frequently observed. However, the molecular basis of this interaction is sparsely reported. We sought to systematically review the existing body of literature and identify the knowledge gaps to answer the question: which molecular mechanisms are implied in the air pollutants-RSV interaction? Online databases were searched for original studies published before August 2022 focusing on molecular mechanisms of the interaction. The studies were charted and a narrative synthesis was based upon three expected directions of influence: a facilitated viral entry, an altered viral replication, and an inappropriate host reaction. We identified 25 studies published between 1993 and 2020 (without a noticeable increase in the number of studies) that were performed in human (n = 12), animal (n = 10) or mixed (n = 3) models, and analysed mainly cigarette smoke (n = 11), particulate matter (n = 4), nanoparticles (n = 3), and carbon black (n = 2). The data on a damage to the epithelial barrier supports the hypothesis of facilitated viral entry; one study also reported accelerated viral entry upon an RSV conjugation to particulate matter. Air pollution may result in the predominance of necrosis over apoptosis, and, as an effect, an increased viral load was reported. Similarly, air pollution mitigates epithelium function with decreased IFN-γ and Clara cell secretory protein levels and decreased immune response. Immune response might also be diminished due to a decreased viral uptake by alveolar macrophages and a suppressed function of dendritic cells. On the other hand, an exuberant inflammatory response might be triggered by air pollution and provoke airway hyperresponsiveness (AHR), prolonged lung infiltration, and tissue remodeling, including a formation of emphysema. AHR is mediated mostly by increased IFN-γ and RANTES concentrations, while the risk of emphysema was related to the activation of the IL-17 → MCP-1 → MMP-9 → MMP-12 axis. There is a significant lack of evidence on the molecular basics of the RSV-air pollution interaction, which may present a serious problem with regards to future actions against air pollution effects. The major knowledge gaps concern air pollutants (mostly the influence of cigarette smoke was investigated), the mechanisms facilitating an acute infection or a worse disease course (since it might help plan short-term, especially non-pharmacological, interventions), and the mechanisms of an inadequate response to the infection (which may lead to a prolonged course of an acute infection and long-term sequelae). Thus far, the evidence is insufficient regarding the broadness and complexity of the interaction, and future studies should focus on common mechanisms stimulated by various air pollutants and a comparison of influence of the different contaminants at various concentrations.
Collapse
|
16
|
Abstract
INTRODUCTION Respiratory syncytial virus (RSV), a very common pathogen, causes variable disease severity. In addition to considerable clinical burden on children, their families and healthcare facilities, RSV infections in children also carry significant direct and indirect socioeconomic burden. METHODS We analyzed data from 5 consecutive RSV seasons (2015-2020) and used virologically confirmed RSV infections and age <5 years as case definition. Clinical information was retrieved from electronic patient records. Costs were estimated by assuming an annual 30% attack rate and a combination of direct medical costs and calculations of societal costs of lost productivity. RESULTS A total of 716 children younger than 5 years of age had confirmed RSV infection of which 254 needed hospitalizations, most of whom were previously healthy. The median length of admission was 3.6 days and 13 patients needed intensive care. The hospital admission incidence rate was 2.5/1000 children/year, but 9.1 for children younger than 1 years of age. The total annual cost of RSV was estimated at €4.3 million, of which 10% was direct healthcare costs. DISCUSSION The clinical and socioeconomic disease burden of RSV in Iceland is substantial despite slightly lower hospital admission rates than other high-income countries. The prevention of RSV in young children, either through maternal or infant vaccination, has the potential to decrease both clinical and financial impact of the annual epidemics.
Collapse
|
17
|
Villanueva DDH, Arcega V, Rao M. Review of respiratory syncytial virus infection among older adults and transplant recipients. Ther Adv Infect Dis 2022; 9:20499361221091413. [PMID: 35464624 PMCID: PMC9019318 DOI: 10.1177/20499361221091413] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/14/2022] [Indexed: 11/25/2022] Open
Abstract
Respiratory syncytial virus (RSV) is a common cause of pulmonary infection among children and has been increasingly recognized as an important respiratory pathogen in older adults and immunocompromised hosts. Among older adults, RSV can lead to exacerbations of underlying lung and cardiac disease. It is also associated with significant morbidity and mortality in hematopoietic stem cell transplant (HSCT) and solid organ transplant (SOT) recipients and may be associated with acute rejection and chronic lung allograft dysfunction among lung transplant recipients (LTRs). Current treatment options for severe RSV disease are limited, and there is a paucity of guidance on RSV treatment among older adults. This narrative review provides a comprehensive overview of RSV disease in older adults, HSCT recipients, and SOT recipients. Nosocomial spread has been reported, thus highlighting the importance of infection prevention and control measures to prevent outbreaks. Antivirals, monoclonal antibodies for immunoprophylaxis, and vaccine development are underway; however, future research is still needed in these critical areas.
Collapse
Affiliation(s)
| | - Victor Arcega
- West Virginia University, Morgantown, WV, USA
- West Virginia University, Wheeling, WV, USA
| | - Mana Rao
- Essen Medical Associates, Bronx, NY, USA
- Archcare, New York, NY, USA
| |
Collapse
|
18
|
Fragkou PC, Moschopoulos CD, Reiter R, Berger T, Skevaki C. Host immune responses and possible therapeutic targets for viral respiratory tract infections in susceptible populations: a narrative review. Clin Microbiol Infect 2022; 28:1328-1334. [DOI: 10.1016/j.cmi.2022.03.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/23/2021] [Accepted: 12/26/2021] [Indexed: 12/11/2022]
|
19
|
Boattini M, Almeida A, Christaki E, Marques TM, Tosatto V, Bianco G, Iannaccone M, Tsiolakkis G, Karagiannis C, Maikanti P, Cruz L, Antão D, Moreira MI, Cavallo R, Costa C. Severity of RSV infection in Southern European elderly patients during two consecutive winter seasons (2017-2018). J Med Virol 2021; 93:5152-5157. [PMID: 33704814 PMCID: PMC8359935 DOI: 10.1002/jmv.26938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/10/2021] [Accepted: 03/08/2021] [Indexed: 12/19/2022]
Abstract
In Europe, the respiratory syncytial virus (RSV) surveillance system is very heterogeneous and there is growing evidence of the importance of RSV infections resulting in hospitalization of elderly patients. The aim of this study was to assess the severity of RSV infection in the elderly living in the aged Southern European countries. We conducted a retrospective study of elderly patients ( ≥65‐year old) admitted for laboratory‐confirmed RSV infection in three tertiary hospitals in Portugal, Italy, and Cyprus over two consecutive winter seasons (2017–2018). Uni‐multivariable analyses were carried out to evaluate the effect of clinical variables on radiologically confirmed pneumonia, use of noninvasive ventilation (NIV), and in‐hospital death (IHD). A total of 166 elderly patients were included. Pneumonia was evident in 29.5%. NIV was implemented in 16.3%, length of stay was 11.8 ± 12.2 days, and IHD occurred in 12.1%. Multivariable analyses revealed that the risk of pneumonia was higher in patients with chronic kidney disease (CKD) (odds ratio [OR]: 2.57; 95% confidence interval [CI]: 1.12–5.91); the use of NIV was higher in patients with obstructive sleep apnea or obesity hypoventilation syndrome (OSA or OHS) (OR: 5.38; 95% CI: 1.67–17.35) and CKD (OR: 2.52; 95% CI: 1.01–6.23); the risk of IHD was higher in males (OR: 3.30; 95% CI: 1.07–10.10) and in patients with solid neoplasm (OR: 9.06; 95% CI: 2.44–33.54) and OSA or OHS (OR: 8.39; 95% CI: 2.14–32.89). Knowledge of factors associated with RSV infection severity may aid clinicians to set priorities and reduce disease burden. Development of effective antiviral treatment and vaccine against RSV is highly desirable.
Collapse
Affiliation(s)
- Matteo Boattini
- Department of Public Health and Pediatrics, Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Turin, Italy
| | - André Almeida
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal.,NOVA Medical School, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Eirini Christaki
- Medical School, University of Cyprus, Nicosia, Cyprus.,Department of Medicine, Nicosia General Hospital, Aglandjia, Cyprus
| | - Torcato Moreira Marques
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal
| | - Valentina Tosatto
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal
| | - Gabriele Bianco
- Department of Public Health and Pediatrics, Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Turin, Italy
| | - Marco Iannaccone
- Department of Public Health and Pediatrics, Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Turin, Italy
| | | | | | | | - Lourenço Cruz
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal
| | - Diogo Antão
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal
| | - Maria Inês Moreira
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Center, Lisbon, Portugal
| | - Rossana Cavallo
- Department of Public Health and Pediatrics, Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Turin, Italy
| | - Cristina Costa
- Department of Public Health and Pediatrics, Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Turin, Italy
| |
Collapse
|