1
|
Kanevsky I, Surendran N, McElwee K, Lei L, Watson W, Pride M, Scully I, Karauzum H, Anderson A, Young M. Comparison of pneumococcal immunogenicity elicited by the PCV13 and PCV15 vaccines in adults 18 through 49 years of age. Vaccine 2023; 41:6625-6629. [PMID: 37793976 DOI: 10.1016/j.vaccine.2023.09.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
AIM Pneumococcal conjugate vaccines (PCV13, PCV15, PCV20) effectively target the capsular polysaccharides of the most common disease-causing Streptococcus pneumoniae serotypes. In this short communication, we analyzed healthy participants who received PCV13 and PCV15 vaccines as part of a recently concluded exploratory clinical trial and report antibody responses to the 13 shared serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) as well as functional OPA responses to serotype 3. METHODS Sera from 87 adult participants (18 through 49 years of age) randomized to receive either PCV13 or PCV15 were collected (n = 46 or n = 41, respectively), from 17 study centers in the US. IgG concentrations of the 13 shared serotypes and serotype 3-specific OPA titers were analyzed before and 1 month after vaccination using internally validated assays. RESULTS At 1 month after vaccination, IgG GMCs of the 13 shared serotypes in PCV13 were similar to those for PCV15. Specifically, serotype 3 OPA GMTs and 95% CIs were similar 1 month after vaccination for PCV13 (62.9 [48.9, 80.9]) and PCV15 (71.1 [50.9, 99.2]). CONCLUSION In healthy participants who received either PCV13 or PCV15, similar serotype-specific responses were observed between all shared serotypes when a uniform validated internal assay was used. Of note, data from this study suggest that both vaccines induce similar functional antibody responses against pneumococcal serotype 3.
Collapse
Affiliation(s)
- Isis Kanevsky
- Vaccine Research & Development, Pfizer Inc., Pearl River, NY 10965, USA.
| | - Naveen Surendran
- Vaccine Research & Development, Pfizer Inc., Pearl River, NY 10965, USA
| | - Kathleen McElwee
- Vaccine Research & Development, Pfizer Inc., Collegeville, PA 19426, USA
| | - Lanyu Lei
- Vaccine Research & Development, Pfizer Inc., Collegeville, PA 19426, USA
| | - Wendy Watson
- Vaccine Research & Development, Pfizer Inc., Collegeville, PA 19426, USA
| | - Michael Pride
- Vaccine Research & Development, Pfizer Inc., Pearl River, NY 10965, USA
| | - Ingrid Scully
- Vaccine Research & Development, Pfizer Inc., Pearl River, NY 10965, USA
| | - Hatice Karauzum
- Vaccine Research & Development, Pfizer Inc., Pearl River, NY 10965, USA
| | | | - Mariano Young
- Vaccine Research & Development, Pfizer Inc., Collegeville, PA 19426, USA.
| |
Collapse
|
2
|
Sikjær MG, Pedersen AA, Wik MS, Stensholt SS, Hilberg O, Løkke A. Vaccine effectiveness of the pneumococcal polysaccharide and conjugated vaccines in elderly and high-risk populations in preventing invasive pneumococcal disease: a systematic search and meta-analysis. Eur Clin Respir J 2023; 10:2168354. [PMID: 36698750 PMCID: PMC9870017 DOI: 10.1080/20018525.2023.2168354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Invasive pneumococcal disease (IPD) is a major cause of morbidity and mortality globally. However, the literature on the vaccine effectiveness (VE) of 23-valent polysaccharide vaccine (PPV23) and 13-valent conjugated vaccine (PCV13) against IPD in adults is sparse. The aim was to summarize the available evidence on the VE of the PPV23 and the PCV13 in elderly individuals against IPD and to investigate how age and comorbidities influence VE against IPD. METHODS A systematic search was conducted in Medline and Embase in February 2021. We used combinations of terms related to PPV23, PCV13, elderly, high-risk populations, and IPD. Eligible articles published since 2010 were included. Two authors reviewed and extracted data. RESULTS Eight studies met the inclusion criteria for PPV23. The meta-analysis showed a reduced OR for all-type IPD with the use of PPV23 vaccine compared with unvaccinated controls (OR 0.69; 95%CI 0.54, 0.88) and a reduced OR for vaccine-type IPD compared with non-vaccine type IPD (0.69; 95%CI 0.63, 0.76). VE against vaccine-type IPD ranged from 28% to 54.1% for individuals aged 65-79 and from 7.5% to 34% for those aged ≥80-85 years. Most studies found a lower VE of PPV23 in populations with comorbidities and in immunocompromised populations compared with the VE for individuals without comorbidities.One study met the inclusion criteria for PCV13. The vaccine efficacy of PCV13 against IPD in individuals aged ≥65 was 75.0% (95% CI, 41.4 to 90.8). CONCLUSION The results from this review show a reduction of IPD in elderly and high-risk populations vaccinated with PPV23 and PCV13. The protective effect may be lower in elderly individuals aged >80 and in individuals with comorbidities. However, the literature is sparse; large-scale prospective studies are required to evaluate the VE of PPV23 and PCV13 vaccination in adults against IPD.
Collapse
Affiliation(s)
- Melina Gade Sikjær
- Department of Medicine, Lillebaelt Hospital, Vejle, Denmark,Department of Regional Health Research, University of Southern Denmark, Odense, Vejle,CONTACT Melina Gade Sikjær Department of Medicine, Lillebaelt Hospital, Beriderbakken 4, Vejle7100, Denmark
| | - Andreas Arnholdt Pedersen
- Department of Medicine, Lillebaelt Hospital, Vejle, Denmark,Department of Regional Health Research, University of Southern Denmark, Odense, Vejle
| | - Mari Stenvold Wik
- Department of Regional Health Research, University of Southern Denmark, Odense, Vejle
| | - Synne Smith Stensholt
- Department of Regional Health Research, University of Southern Denmark, Odense, Vejle
| | - Ole Hilberg
- Department of Medicine, Lillebaelt Hospital, Vejle, Denmark,Department of Regional Health Research, University of Southern Denmark, Odense, Vejle
| | - Anders Løkke
- Department of Medicine, Lillebaelt Hospital, Vejle, Denmark,Department of Regional Health Research, University of Southern Denmark, Odense, Vejle
| |
Collapse
|
3
|
Abstract
Infection with SARS-CoV-2, the etiology of the ongoing COVID-19 pandemic, has resulted in over 450 million cases with more than 6 million deaths worldwide, causing global disruptions since early 2020. Memory B cells and durable antibody protection from long-lived plasma cells (LLPC) are the mainstay of most effective vaccines. However, ending the pandemic has been hampered by the lack of long-lived immunity after infection or vaccination. Although immunizations offer protection from severe disease and hospitalization, breakthrough infections still occur, most likely due to new mutant viruses and the overall decline of neutralizing antibodies after 6 months. Here, we review the current knowledge of B cells, from extrafollicular to memory populations, with a focus on distinct plasma cell subsets, such as early-minted blood antibody-secreting cells and the bone marrow LLPC, and how these humoral compartments contribute to protection after SARS-CoV-2 infection and immunization.
Collapse
Affiliation(s)
- Doan C. Nguyen
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
| | - Pedro A. Lamothe
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
| | - Matthew C. Woodruff
- Division of Rheumatology, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
- Emory Autoimmunity Center of ExcellenceEmory UniversityAtlantaGeorgiaUSA
- Lowance Center for Human ImmunologyEmory UniversityAtlantaGeorgiaUSA
| | - Ankur S. Saini
- Division of Rheumatology, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
- Emory Autoimmunity Center of ExcellenceEmory UniversityAtlantaGeorgiaUSA
- Lowance Center for Human ImmunologyEmory UniversityAtlantaGeorgiaUSA
| | - Caterina E. Faliti
- Division of Rheumatology, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
- Lowance Center for Human ImmunologyEmory UniversityAtlantaGeorgiaUSA
| | - Ignacio Sanz
- Division of Rheumatology, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
- Emory Autoimmunity Center of ExcellenceEmory UniversityAtlantaGeorgiaUSA
- Lowance Center for Human ImmunologyEmory UniversityAtlantaGeorgiaUSA
| | - Frances Eun‐Hyung Lee
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of MedicineEmory UniversityAtlantaGeorgiaUSA
- Lowance Center for Human ImmunologyEmory UniversityAtlantaGeorgiaUSA
| |
Collapse
|
4
|
ÖZARSLAN F, BARAN AKSAKAL FN. Altmışbeş Yaş ve Üzeri Erişkinlerde Pnömokok Bağışıklaması ve Ülkemizdeki Pnömokok Aşı Uygulamaları. KSÜ Tıp Fak Der 2022. [DOI: 10.17517/ksutfd.1082905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Sorunu ortaya çıkmadan önlemek şüphesiz tedaviye göre kolay ve ucuz bir yöntemdir. Birinci basamak sağlık hizmetlerinin esasını oluşturan koruyucu sağlık hizmetlerinden aşılama, aşı ile önlenebilir hastalıkların önlenmesi ve bu hastalıklara bağlı kayıpların azaltılabilmesi için olmazsa olmazdır. Yaşlılarda ve yüksek riskli erişkinlerde önemli morbidite ve mortaliteye sebep olan pnömokok infeksiyonlarına karşı ülkemizde uygulanan iki tip aşı vardır: konjuge pnömokok aşısı ve polisakkarid pnömokok aşısı. Erişkinlerde pnömokok aşılarının yararı kanıtlanmış olmasına rağmen aşı uygulanma oranları hedeflenen düzeyde olmadığı için iyileştirme çalışmalarına ihtiyaç vardır. Birinci basamak çalışanları başta olmak üzere aşı uygulayıcılarının eğitilmesi ve farkındalığının artırılması, topluma aşıların yararları ve olası riskleri hakkında yeterli bilgi verilmesi, sağlık kontrollerinin ve kayıtların düzenli olması, aşıların yeterli miktarda ve ücretsiz olarak sağlanması gerekmektedir.
Bu derleme erişkinlerde pnömokok aşı uygulamalarında mevcut durumu gözden geçirmek ve aşılama oranlarını arttırmak için yapılması gereken uygulamaları vurgulamak amacıyla yazılmıştır.
Collapse
|
5
|
Fukuda N, Kobayashi N, Masuda M, Wakabayashi A, Kusano N, Watanabe K, Horita N, Hara Y, Nishikawa M, Kaneko T. Clinical Features and Risk Factors for Mortality in Hospitalized Older Adults with Pneumonia. Can Respir J 2021; 2021:5644824. [PMID: 34824650 DOI: 10.1155/2021/5644824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/18/2021] [Accepted: 10/23/2021] [Indexed: 11/17/2022] Open
Abstract
Background Pneumonia is a common disease among the aging population in Japan. Hence, it is important to elucidate the risks related to pneumonia mortality. Since Streptococcus pneumoniae is the most commonly observed pathogen, pneumococcal vaccination is recommended to older adults. Therefore, this study aimed to clarify the clinical features of pneumonia, including the status of pneumococcal vaccination, in hospitalized older adult patients in Japan. Methods This single-centered retrospective study was conducted by reviewing the medical records of all patients with acute pneumonia at Fujisawa City Hospital in Japan from April 2018 to March 2019. Patients were divided into two groups based on their history of pneumococcal vaccination. The primary endpoint was in-hospital mortality, while the secondary endpoint was risk factors associated with mortality. Results We included 93 patients with pneumonia in this retrospective study. Although the mortality rate was higher in the vaccinated group (15.8%) than in the unvaccinated group (9.1%), vaccination status was not identified as a significant risk factor for mortality after multivariable logistic regression (odds ratio: 2.71; 95% confidence interval: 0.667-11.02; p=0.16). In addition, the A-DROP score was identified as an independent risk factor (odds ratio: 2.64; 95% confidence interval: 1.22-5.72; p=0.008). Conclusions Our study suggested that the A-DROP score is a risk factor of mortality for pneumonia in older adults. In addition, pneumococcal vaccination history was related to increased mortality; however, the influence of the vaccination remains unclear because of the small sample size.
Collapse
|
6
|
Muri L, Ispasanie E, Schubart A, Thorburn C, Zamurovic N, Holbro T, Kammüller M, Pluschke G. Alternative Complement Pathway Inhibition Abrogates Pneumococcal Opsonophagocytosis in Vaccine-Naïve, but Not in Vaccinated Individuals. Front Immunol 2021; 12:732146. [PMID: 34707606 PMCID: PMC8543009 DOI: 10.3389/fimmu.2021.732146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/23/2021] [Indexed: 01/19/2023] Open
Abstract
To assess the relative contribution of opsonisation by antibodies, classical and alternative complement pathways to pneumococcal phagocytosis, we analyzed killing of pneumococci by human blood leukocytes collected from vaccine-naïve and PCV13-vaccinated subjects. With serotype 4 pneumococci as model, two different physiologic opsonophagocytosis assays based on either hirudin-anticoagulated whole blood or on washed cells from EDTA-anticoagulated blood reconstituted with active serum, were compared. Pneumococcal killing was measured in the presence of inhibitors targeting the complement components C3, C5, MASP-2, factor B or factor D. The two assay formats yielded highly consistent and comparable results. They highlighted the importance of alternative complement pathway activation for efficient opsonophagocytic killing in blood of vaccine-naïve subjects. In contrast, alternative complement pathway inhibition did not affect pneumococcal killing in PCV13-vaccinated individuals. Independent of amplification by the alternative pathway, even low capsule-specific antibody concentrations were sufficient to efficiently trigger classical pathway mediated opsonophagocytosis. In heat-inactivated or C3-inhibited serum, high concentrations of capsule-specific antibodies were required to trigger complement-independent opsonophagocytosis. Our findings suggest that treatment with alternative complement pathway inhibitors will increase susceptibility for invasive pneumococcal infection in non-immune subjects, but it will not impede pneumococcal clearance in vaccinated individuals.
Collapse
Affiliation(s)
- Lukas Muri
- Molecular Immunology Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Emma Ispasanie
- Molecular Immunology Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Anna Schubart
- Translational Medicine-Preclinical Safety, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | | | - Natasa Zamurovic
- Translational Medicine-Preclinical Safety, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Thomas Holbro
- Novartis Pharma AG, Global Drug Development, Basel, Switzerland
| | - Michael Kammüller
- Translational Medicine-Preclinical Safety, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Gerd Pluschke
- Molecular Immunology Unit, Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| |
Collapse
|
7
|
Fitz-Patrick D, Young M, Scott DA, Scully IL, Baugher G, Peng Y, Jansen KU, Gruber W, Watson W. A randomized phase 1 study of the safety and immunogenicity of 2 novel pneumococcal conjugate vaccines in healthy Japanese adults in the United States. Hum Vaccin Immunother 2021; 17:2249-2256. [PMID: 33545022 PMCID: PMC8189073 DOI: 10.1080/21645515.2020.1863177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Expanding serotype coverage of pneumococcal conjugate vaccines (PCVs) to target prevailing disease-causing serotypes could further reduce disease burden. To address this need, 2 different PCVs have been investigated: a 20-valent PCV (PCV20; includes the 13 serotypes in the 13-valent PCV [PCV13] plus 7 additional serotypes [8, 10A, 11A, 12F, 15B, 22F, 33F]) and a complementary 7-valent PCV (cPCV7; contains only the 7 additional serotypes). This phase 1b, randomized, controlled, double-blind study evaluated PCV20 and cPCV7 safety and immunogenicity in healthy Japanese adults 18–49 years of age residing in the United States for ≤5 years. Participants (n = 104) were randomized equally to receive a single dose of PCV20, cPCV7, or PCV13. Immunogenicity was assessed at baseline and 1 month after vaccination using serotype-specific opsonophagocytic activity (OPA) titers and serotype-specific immunoglobulin G (IgG) concentrations. Prompted local reactions and systemic events; adverse events (AEs); and serious AEs and newly diagnosed chronic disease were assessed 14 days, through 1 month, and upto 6 months following vaccination, respectively. OPA immune responses were robust for all 20 serotypes in the PCV20 group and for the 7 serotypes in the cPCV7 group 1 month after vaccination. IgG immune response showed similar trends. Injection site pain and muscle pain were the most common local reaction and systemic event; the majority were mild or moderate in severity. Few AEs and no severe AEs, serious AEs, or safety-related withdrawals were reported. Taken together, administration of PCV20 or cPCV7 in Japanese adults was well tolerated and induced robust serotype-specific functional immune responses. NCT03642847.
Collapse
Affiliation(s)
| | - Mariano Young
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Daniel A Scott
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Ingrid L Scully
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | - Gary Baugher
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Yahong Peng
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| | - Kathrin U Jansen
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | - William Gruber
- Vaccine Research and Development, Pfizer Inc, Pearl River, NY, USA
| | - Wendy Watson
- Vaccine Research and Development, Pfizer Inc, Collegeville, PA, USA
| |
Collapse
|
8
|
Sings HL, Gessner BD, Wasserman MD, Jodar L. Pneumococcal Conjugate Vaccine Impact on Serotype 3: A Review of Surveillance Data. Infect Dis Ther 2021; 10:521-39. [PMID: 33587245 DOI: 10.1007/s40121-021-00406-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/20/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction Limited changes in serotype 3 invasive pneumococcal disease (IPD) incidence rates after a decade of 13-valent pneumococcal conjugate vaccine (PCV13) introduction into several national immunization programs (NIP) have raised questions about PCV13's effectiveness against this serotype. Methods We analyzed the impact of pediatric PCV programs on serotype 3 IPD with two approaches. First, we reviewed the publicly available surveillance data from countries identified in two recently published reviews to describe the population impact of pediatric PCV13 or PCV10 vaccination programs on serotype 3 IPD. We then compared the observed trends in PCV10 and PCV13 countries to a previously described dynamic transmission model that simulates the spread of pneumococcal carriage and development of IPD in a population over time. Results When serotype 3 disease rates are compared from countries that have introduced either a 10-valent (PCV10) vaccine that does not contain serotype 3 in its formulation or PCV13 in their pediatric NIP, over time, serotype 3 incidence rate trends are markedly different. Countries with a PCV10 NIP showed a substantial linear increase in serotype 3 pneumococcal disease among all age groups since the time of PCV10 introduction, whereas countries with a PCV13 NIP experienced a modest decline during the 3–4 years after vaccine introduction followed by an inflection upward in subsequent years. Conclusion These data suggest that PCV13 provides a certain degree of direct and indirect protection against serotype 3 at the population level and direct adult vaccination with a serotype 3-containing vaccine is likely to provide substantial benefit in the context of a pediatric PCV NIP. Further research around serotype 3 transmission patterns and epidemiology is nonetheless warranted. Supplementary Information The online version contains supplementary material available at 10.1007/s40121-021-00406-w.
Collapse
|
9
|
Chapman R, Sutton K, Dillon-Murphy D, Patel S, Hilton B, Farkouh R, Wasserman M. Ten year public health impact of 13-valent pneumococcal conjugate vaccination in infants: A modelling analysis. Vaccine 2020; 38:7138-7145. [PMID: 32912642 DOI: 10.1016/j.vaccine.2020.08.068] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 01/27/2023]
Abstract
Pneumococcal disease is a substantial contributor to illness and death in young children globally. The introduction of 7-valent pneumococcal conjugate vaccine (PCV7) in 2000 had a significant impact in preventing pneumococcal disease in both vaccinated children and unvaccinated individuals (through herd effect). A higher valent PCV13 replaced PCV7 in late 2009. This analysis was undertaken to assess how many cases and deaths have been averted over the last decade since PCV13 introduction. A model estimated the number of infants vaccinated annually with PCV13, as well as the number of cases and deaths of invasive pneumococcal disease, pneumococcal pneumonia, and acute otitis media cases averted. PCV13 vaccination was estimated to have prevented 175.2 million cases of all pneumococcal diseases and 624,904 deaths globally between 2010 and 2019. These results demonstrate the substantial public health impact of PCV13 and highlight the importance of increasing the global reach of PCV programs.
Collapse
Affiliation(s)
- Ruth Chapman
- Evidera, The Ark, 201 Talgarth Road, London W6 8BJ, United Kingdom.
| | - Kelly Sutton
- Evidera, The Ark, 201 Talgarth Road, London W6 8BJ, United Kingdom.
| | | | - Shreeya Patel
- Evidera, The Ark, 201 Talgarth Road, London W6 8BJ, United Kingdom.
| | - Betsy Hilton
- Pfizer Inc., 235 42nd Street, New York, NY 10017, United States.
| | - Ray Farkouh
- Pfizer Inc., 235 42nd Street, New York, NY 10017, United States.
| | - Matt Wasserman
- Pfizer Inc., 235 42nd Street, New York, NY 10017, United States.
| |
Collapse
|
10
|
Root-Bernstein R. Age and Location in Severity of COVID-19 Pathology: Do Lactoferrin and Pneumococcal Vaccination Explain Low Infant Mortality and Regional Differences? Bioessays 2020; 42:e2000076. [PMID: 32869330 DOI: 10.1002/bies.202000076] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/17/2020] [Indexed: 12/21/2022]
Abstract
Two conundrums puzzle COVID-19 investigators: 1) morbidity and mortality is rare among infants and young children and 2) rates of morbidity and mortality exhibit large variances across nations, locales, and even within cities. It is found that the higher the rate of pneumococcal vaccination in a nation (or city) the lower the COVID-19 morbidity and mortality. Vaccination rates with Bacillus Calmette-Guerin, poliovirus, and other vaccines do not correlate with COVID-19 risks, nor do COVID-19 case or death rates correlate with number of people in the population with diabetes, obesity, or adults over 65. Infant protection may be due to maternal antibodies and antiviral proteins in milk such as lactoferrin that are known to protect against coronavirus infections. Subsequent protection might then be conferred (and correlate with) rates of Haemophilus influenzae type B (Hib) (universal in infants) and pneumococcal vaccination, the latter varying widely by geography among infants, at-risk adults, and the elderly. Also see the video abstract here https://youtu.be/GODBYRbPL00.
Collapse
|
11
|
Vadlamudi NK, Chen A, Marra F. Impact of the 13-Valent Pneumococcal Conjugate Vaccine Among Adults: A Systematic Review and Meta-analysis. Clin Infect Dis 2020; 69:34-49. [PMID: 30312379 DOI: 10.1093/cid/ciy872] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/05/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND A notable reduction of the pneumococcal disease burden among adults was observed after the introduction of a 7-valent pneumococcal conjugate vaccine (PCV7) in childhood immunization programs. In 2010, a 13-valent pneumococcal conjugate vaccine (PCV13) replaced PCV7 in many jurisdictions; a comparative assessment of PCV13's impact was missing. Our objective was to summarize the available data and assess the change in the incidence of invasive pneumococcal disease (IPD) in adults after the introduction of PCV13 in childhood immunization programs. METHODS We conducted a systematic literature search from January 1946 to May 2017 of randomized, controlled trials and observational studies OBS reporting the incidence of IPD, non-invasive pneumococcal disease, hospitalizations, and mortality in adults for the periods before and after the introduction of PCV13. Incidence rate ratios (IRRs) were pooled across studies using restricted, maximum-likelihood, random-effects models. RESULTS From 3306 records,we included 29 OBS studies and 2033961 cases. Significantly lower IPD rates were seen after PCV13 introduction in adults aged <65 years (IRR 0.78, 95% confidence interval [CI] 0.72-0.85) and those aged ≥65 years (IRR 0.86, 95% CI 0.81-0.91). Lower rates of IPD were seen with PCV7 (IRR 0.45, 95% CI 0.38-0.54) and PCV13 serotypes (IRR 0.60, 95% CI 0.54-0.68). A significantly higher IRR of 1.10 (95% CI 1.04-1.17) for non-vaccine serotypes was observed, especially among those aged 65 years and older (IRR 1.20, 95% CI 1.11-1.29). CONCLUSIONS PCV13 use in children had a moderate impact on reducing the overall and vaccine-type IPDs, but there was a significant increase in non-vaccine type IPDs among adults, especially in those over 65 years.
Collapse
Affiliation(s)
| | - Anna Chen
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada
| | - Fawziah Marra
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada
| |
Collapse
|
12
|
Sings HL, De Wals P, Gessner BD, Isturiz R, Laferriere C, McLaughlin JM, Pelton S, Schmitt HJ, Suaya JA, Jodar L. Effectiveness of 13-Valent Pneumococcal Conjugate Vaccine Against Invasive Disease Caused by Serotype 3 in Children: A Systematic Review and Meta-analysis of Observational Studies. Clin Infect Dis 2020; 68:2135-2143. [PMID: 30357326 PMCID: PMC6541704 DOI: 10.1093/cid/ciy920] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 10/22/2018] [Indexed: 12/27/2022] Open
Abstract
The 13-valent pneumococcal conjugate vaccine (PCV13) is the only licensed PCV with serotype 3 polysaccharide in its formulation. Postlicensure PCV13 effectiveness studies against serotype 3 invasive pneumococcal disease (IPD) in children have shown inconsistent results. We performed a systematic review and meta-analysis of observational studies to assess PCV13 vaccine effectiveness (VE) for serotype 3 IPD in children. We systematically searched PubMed, Embase, and the Cochrane library for studies published before 14 August 2017. We identified 4 published studies and 2 conference posters that provided PCV13 VE estimates stratified by serotype. The pooled PCV13 VE against serotype 3 IPD from the random-effects meta-analysis was 63.5% (95% confidence interval [CI], 37.3%–89.7%). A sensitivity analysis including conference posters gave a pooled VE estimate of 72.4% (95% CI, 56.7%–88.0%). The pooled data from case-control studies with similar methodologies and high quality support direct PCV13 protection against serotype 3 IPD in children.
Collapse
Affiliation(s)
- Heather L Sings
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Collegeville, Pennsylvania
| | - Philippe De Wals
- Department of Social and Preventive Medicine, Laval University, Quebec City, Canada
| | - Bradford D Gessner
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Collegeville, Pennsylvania
| | - Raul Isturiz
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Collegeville, Pennsylvania
| | - Craig Laferriere
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer Canada, Inc., Kirkland, Quebec
| | - John M McLaughlin
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Collegeville, Pennsylvania
| | - Stephen Pelton
- Boston University Schools of Medicine and Public Health, Massachusetts.,Boston Medical Center, Massachusetts
| | - Heinz-Josef Schmitt
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Paris, France
| | - Jose A Suaya
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., New York, New York
| | - Luis Jodar
- Vaccines Medical Development and Scientific and Clinical Affairs, Pfizer, Inc., Collegeville, Pennsylvania
| |
Collapse
|
13
|
Lapidot R, Shea KM, Yildirim I, Cabral HJ, Pelton SI. Characteristics of Serotype 3 Invasive Pneumococcal Disease before and after Universal Childhood Immunization with PCV13 in Massachusetts. Pathogens 2020; 9:E396. [PMID: 32455770 PMCID: PMC7281000 DOI: 10.3390/pathogens9050396] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Although a substantial decline in vaccine-serotype invasive pneumococcal disease (IPD) incidence was observed following the introduction of pneumococcal conjugate vaccines (PCV), the estimated range of thirteen-valent conjugate vaccine (PCV13) effectiveness for serotype 3 disease is wide and includes zero. We assessed the impact of PCV13 on serotype 3 IPD incidence and disease characteristics in Massachusetts' children. METHODS Serotype 3 IPD cases in children <18 years old were identified via enhanced passive surveillance system in Massachusetts. We compared incidence rates and characteristics of IPD cases before and after PCV13. RESULTS A total of 47 serotype 3 IPD cases were identified from 2002 to 2017; incidence of serotype 3 IPD in the years following PCV13 was 0.19 per 100,000 children compared to 0.21 before PCV 13, incidence rate ratio (IRR) = 0.86 (95% CI 0.47-1.57). The majority (78%) of post-PCV13 serotype 3 IPD cases occurred among fully vaccinated children. Age distribution, clinical syndrome and presence of comorbidities among serotype 3 IPD cases were similar before and after PCV13 introduction. There was no association between the date of the last PCV13 dose and time to IPD to suggest waning of immunity. CONCLUSIONS seven years following PCV 13 we found no significant changes in serotype 3 IPD incidence or disease characteristics in children in Massachusetts.
Collapse
Affiliation(s)
- Rotem Lapidot
- Division of Pediatric Infectious Diseases, Boston Medical Center, Boston, MA 02118, USA;
- Boston University Schools of Medicine, Boston, MA 02118, USA
| | - Kimberly M. Shea
- Boston University School of Public Health, Boston Medical Center, Boston, MA 02118, USA;
| | - Inci Yildirim
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Howard J. Cabral
- Department of Biostatistics, Boston University School of Public Health, Boston, MA 02118, USA;
| | - Stephen I. Pelton
- Division of Pediatric Infectious Diseases, Boston Medical Center, Boston, MA 02118, USA;
- Boston University Schools of Medicine, Boston, MA 02118, USA
- Boston University School of Public Health, Boston Medical Center, Boston, MA 02118, USA;
| | | |
Collapse
|
14
|
Petukhova ES, Vorobyev DS, Sidorov AV, Semenova IB, Volokh YV, Leonova AY, Sidorova AV, Mikhailova NA. Immunization with Recombinant Pneumolysin Induces the Production of Antibodies and Protects Mice in a Model of Systemic Infection Caused by Streptococcus pneumoniae. Bull Exp Biol Med 2020; 168:485-487. [PMID: 32146631 DOI: 10.1007/s10517-020-04736-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 11/26/2022]
Abstract
Immunogenic and protective activity of recombinant pneumolysin was studied in experiments on male BALB/c mice. The mice were immunized intraperitoneally with recombinant pneumolysin sorbed on Al(OH)3 (200 μg per mouse). In 2 weeks after immunization, the isotypes of antibodies to recombinant pneumolysin in the serum of immunized mice were determined by ELISA. The animals were infected with Streptococcus pneumoniae serotype 3. Immunization with recombinant pneumolysin induced the production of anti-pneumolysin antibodies, mainly of IgG1 subisotype. On day 21 after intraperitoneal infection with S. pneumoniae serotype 3 in a dose of 106 microbial cells, the survival rate of animals immunized with recombinant pneumolysin in a dose of 25 μg/mouse was 67% vs. 0% in the control (p<0.001). Recombinant pneumolysin could be considered as a promising protective antigen for inclusion in the serotype-independent vaccine against S. pneumoniae.
Collapse
Affiliation(s)
- E S Petukhova
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia.
| | - D S Vorobyev
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
- I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - A V Sidorov
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - I B Semenova
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - Y V Volokh
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - A Y Leonova
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - A V Sidorova
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| | - N A Mikhailova
- I. I. Mechnikov Research Institute for Vaccines and Sera, Moscow, Russia
| |
Collapse
|
15
|
LeBlanc J, ElSherif M, Ye L, MacKinnon-Cameron D, Ambrose A, Hatchette TF, Lang AL, Gillis HD, Martin I, Demczuk WH, LaFerriere C, Andrew MK, Boivin G, Bowie W, Green K, Johnstone J, Loeb M, McCarthy A, McGeer A, Semret M, Trottier S, Valiquette L, Webster D, McNeil SA. Age-stratified burden of pneumococcal community acquired pneumonia in hospitalised Canadian adults from 2010 to 2015. BMJ Open Respir Res 2020; 7:e000550. [PMID: 32188585 PMCID: PMC7078693 DOI: 10.1136/bmjresp-2019-000550] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND In Canada, 13-valent pneumococcal conjugate vaccine (PCV13) is recommended in childhood, in individuals at high risk of invasive pneumococcal disease (IPD) and in healthy adults aged ≥65 years for protection against vaccine-type IPD and pneumococcal community-acquired pneumonia (pCAP). Since vaccine recommendations in Canada include both age-based and risk-based guidance, this study aimed to describe the burden of vaccine-preventable pCAP in hospitalised adults by age. METHODS Surveillance for community-acquired pneumonia (CAP) in hospitalised adults was performed prospectively from 2010 to 2015. CAP was radiologically confirmed, and pCAP was identified using blood and sputum culture and urine antigen testing. Patient demographics and outcomes were stratified by age (16-49, 50-64, ≥65 and ≥50 years). RESULTS Of 6666/8802 CAP cases tested, 830 (12.5%) had pCAP, and 418 (6.3%) were attributed to a PCV13 serotype. Of PCV13 pCAP, 41% and 74% were in adults aged ≥65 and ≥50 years, respectively. Compared with non-pCAP controls, pCAP cases aged ≥50 years were more likely to be admitted to intensive care units (ICUs) and to require mechanical ventilation. Older adults with pCAP were less likely to be admitted to ICU or required mechanical ventilation, given their higher mortality and goals of care. Of pCAP deaths, 67% and 90% were in the ≥65 and ≥50 age cohorts, respectively. CONCLUSIONS Adults hospitalised with pCAP in the age cohort of 50-64 years contribute significantly to the burden of illness, suggesting that an age-based recommendation for adults aged ≥50 years should be considered in order to optimise the impact of pneumococcal vaccination programmes in Canada.
Collapse
Affiliation(s)
- Jason LeBlanc
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - May ElSherif
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Lingyun Ye
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Donna MacKinnon-Cameron
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ardith Ambrose
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Todd F Hatchette
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Amanda Ls Lang
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Hayley D Gillis
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Irene Martin
- Streptocococcus & STI Unit, National Microbiology Laboratory (NML), Public Health Agency of Canada (PHAC), Winnipeg, Manitoba, Canada
| | - Walter H Demczuk
- Streptocococcus & STI Unit, National Microbiology Laboratory (NML), Public Health Agency of Canada (PHAC), Winnipeg, Manitoba, Canada
| | | | - Melissa K Andrew
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Guy Boivin
- Department of Microbiology-Immunology and Infectious Diseases, Centre Hospitalier Universitaire de Québec, Quebec City, Quebec, Canada
| | - William Bowie
- Department of Medicine, Vancouver General Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Karen Green
- Department of Microbiology, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Jennie Johnstone
- Department of Medicine, Public Health Ontario and University of Toronto, Toronto, Ontario, Canada
| | - Mark Loeb
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Anne McCarthy
- Division of Infectious Diseases, Ottawa Hospital General Campus and University of Ottawa, Hamilton, Ontario, Canada
| | - Allison McGeer
- Department of Microbiology, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Makeda Semret
- Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
| | - Sylvie Trottier
- Department of Microbiology-Immunology and Infectious Diseases, Centre Hospitalier Universitaire de Québec, Quebec City, Quebec, Canada
| | - Louis Valiquette
- Department of Microbiology and Infectiology, Centre Intégré Universitaire de Santé et de Services Sociaux de l'Estrie - Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Duncan Webster
- Department of Medicine, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Shelly A McNeil
- Canadian Center for Vaccinology (CCfV), Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| |
Collapse
|
16
|
Dhar R, Ghoshal AG, Guleria R, Sharma S, Kulkarni T, Swarnakar R, Samaria JK, Chaudhary S, Gaur SN, Christopher DJ, Singh V, Abraham G, Sarkar A, Mukhopadhyay A, Panda J, Swaminathan S, Nene A, Krishnan S, Shahi PK, Sarangdhar N, Mishra N, Chowdury SR, Halder I, Katiyar SK, Jain VK, Chawla R, Koul PA. Clinical practice guidelines 2019: Indian consensus-based recommendations on pneumococcal vaccination for adults. Lung India 2020; 37:S19-S29. [PMID: 32830790 PMCID: PMC7703813 DOI: 10.4103/lungindia.lungindia_272_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Similar to the global scenario, pneumococcal diseases are a significant health concern in India. Pneumococcal diseases occur frequently among adults and are largely preventable through vaccines. Globally, several guidelines and recommendations are available for pneumococcal vaccination in adults. However, owing to wide variations in the disease burden, regulatory landscape, and health-care system in India, such global guidelines cannot be unconditionally implemented throughout the country. To address these gaps, the Indian Chest Society and National College of Chest Physicians of India jointly conducted an expert meeting in January 2019. The aim of the discussion was to lay down specific evidence-based recommendations on adult pneumococcal vaccination for the country, with a view to further ameliorate the disease burden in the country. This article presents an overview of the closed-door discussion by the expert members on clinical practice guidelines to be followed for adult pneumococcal vaccination in India.
Collapse
Affiliation(s)
- Raja Dhar
- Department of Pulmonology, Fortis Hospital, Kolkata, West Bengal, India
| | - Aloke Gopal Ghoshal
- Department of Pulmonary Medicine, National Allergy Asthma Bronchitis Institute, Kolkata, West Bengal, India
| | - Randeep Guleria
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Shubham Sharma
- Department of Pulmonology and Critical Care Medicine, Fortis Hospital, Kolkata, West Bengal, India
| | - Tarang Kulkarni
- Department of Pulmonology and Critical Care Medicine, Fortis Hospital, Kolkata, West Bengal, India
| | - Rajesh Swarnakar
- Department of Respiratory, Critical Care and Sleep Medicine, Getwell Hospital and Research Institute, Nagpur, Maharashtra, India
| | - J K Samaria
- Department of TB and Chest Diseases, Centre for Research and Treatment of Allergy, Asthma and Bronchitis, Varanasi, Uttar Pradesh, India
| | - Sudhir Chaudhary
- Department of Pulmonology, Kulwanti Hospitals and Research Center, Kanpur, Uttar Pradesh, India
| | - S N Gaur
- Department of Respiratory Medicine and Tuberculosis, School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
| | - D J Christopher
- Department of Pulmonary Medicine, Christian Medical College, Vellore, Tamil Nadu, India
| | - Virendra Singh
- Department of Pulmonary Medicine, Asthma Bhawan, Shastri Nagar, Jaipur, Rajasthan, India
| | - Georgi Abraham
- Department of Nephrology, Madras Medical Mission, Chennai, Tamil Nadu, India
| | - Anirban Sarkar
- Department of Pulmonology, Zenith Superspeciality Hospital, Kolkata, West Bengal, India
| | - Ansuman Mukhopadhyay
- Department of Pulmonology, National Allergy Asthma Bronchitis Institute, Kolkata, West Bengal, India
| | - Jayant Panda
- Department of Medicine, SCB Medical College, Cuttack, Odisha, India
| | | | - Amita Nene
- Department of Chest Medicine, Bombay Hospital, Mumbai, Maharashtra, India
| | - Shyam Krishnan
- Department of Chest Medicine, Apollo Hospital, Bengaluru, Karnataka, India
| | - Praveen Kumar Shahi
- Department of Pulmonology and Critical Care Medicine, Fortis Hospital, Kolkata, West Bengal, India
| | - Nikhil Sarangdhar
- Department of Pulmonary Medicine, Lung Clinica, Andheri West Mumbai, Maharashtra, India
| | - Narayan Mishra
- Department of Pulmonary Medicine, MKCG Medical College, Berhampur, Odisha, India
| | | | - Indranil Halder
- Department of Pulmonary Medicine, College Of Medicine & JNM Hospital, Kalyani, Nadia, Uttar Pradesh, India
| | - S K Katiyar
- Chest Care Center, Kanpur, Uttar Pradesh, India
| | - V K Jain
- Department of Respiratory Medicine, Mahatma Gandhi Medical College and Hospital, Jaipur, Rajasthan, India
| | - Rakesh Chawla
- Dr Rakesh Chawla's Chest, Asthma Allergy and Sleep Clinic, Delhi, India
| | - Parvaiz A Koul
- Department of Internal and Pulmonary Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| |
Collapse
|
17
|
Barnes CE, MacIntyre CR. Risk modelling the mortality impact of antimicrobial resistance in secondary pneumococcal pneumonia infections during the 2009 influenza pandemic. Int J Infect Dis 2019; 85:1-6. [DOI: 10.1016/j.ijid.2019.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 12/18/2022] Open
|
18
|
David MZ. A New Indication for Pneumococcal Vaccination? Am J Kidney Dis 2019; 74:9-11. [PMID: 31040090 DOI: 10.1053/j.ajkd.2019.03.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 03/28/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Michael Z David
- Division of Infectious Diseases, Department of Medicine, University of Pennsylvania, Philadelphia, PA.
| |
Collapse
|
19
|
Abstract
Invasive pneumococcal disease and pneumococcal pneumonia cause substantial morbidity and mortality in the elderly. This review focuses on the immunogenicity, safety, efficacy and effectiveness data on the use of the 13-valent conjugate pneumococcal vaccine (PCV13) in adults. A MEDLINE literature search was performed from January 1946 to December 2017. Additional references were identified from a review of literature citations. All English-language randomized trials, observational studies and meta-analyses assessing the immunogenicity, efficacy, effectiveness and safety of PCV13 in adults were evaluated. Six randomized controlled studies evaluated immunogenicity and safety of PCV13 in adults and showed that the conjugated vaccine elicited a greater immune response to the majority of the 13 serotypes compared to the 23-valent polysaccharide pneumococcal vaccine (PPV23). Administering PCV13 prior to PPV23 elicits greater immune responses and multiple doses of PCV13 demonstrated modest advantage. PCV13 titers declined after a year but remained above baseline. A randomized clinical trial (CAPiTA) showed that PCV13 was effective in preventing community-acquired pneumonia (CAP) and vaccine-type invasive pneumococcal disease, but not any cause pneumonia. Safety data shows PCV13 elicits minor local reactions, such as pain at the injection site. Major side effects that were commonly reported included muscle fatigue and headache. Both local and systemic adverse events were comparable to PPV23. While PCV13 has a well-established immunogenicity and safety profile in adults, there is sparse data on sequential or multiple dosing, efficacy and effectiveness in adults. As there are few countries who have adopted PCV13 for routine adult immunization, there is a need to evaluate the effectiveness of PCV13 in a real-world setting.
Collapse
Affiliation(s)
- Fawziah Marra
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada
| | | |
Collapse
|
20
|
Vadlamudi NK, Parhar K, Altre Malana KL, Kang A, Marra F. Immunogenicity and safety of the 13-valent pneumococcal conjugate vaccine compared to 23-valent pneumococcal polysaccharide in immunocompetent adults: A systematic review and meta-analysis. Vaccine 2019; 37:1021-1029. [DOI: 10.1016/j.vaccine.2019.01.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/15/2018] [Accepted: 01/02/2019] [Indexed: 11/29/2022]
|
21
|
Wang H, Lian P, Niu X, Zhao L, Mu X, Feng B, Li J, Liang Z, Qiao J. TLR4 deficiency reduces pulmonary resistance to Streptococcus pneumoniae in gut microbiota-disrupted mice. PLoS One 2018; 13:e0209183. [PMID: 30562386 PMCID: PMC6298678 DOI: 10.1371/journal.pone.0209183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 12/01/2018] [Indexed: 02/04/2023] Open
Abstract
Streptococcus pneumoniae is a clinically important pathogen responsible for significant morbidity and mortality worldwide. Disruption of the host gut microbiota by antibiotics reduces the pulmonary resistance to S. pneumoniae. The aim of our study was to determine the potential role of TLR4 in the reduced pulmonary resistance to S. pneumoniae following gut microbiota disruption. Wild-type and TLR4-deficient mice were given broad-spectrum antibiotics for 3 weeks by oral gavage to disrupt the gut microbiota, and subsequently inoculated intra-nasally with S. pneumoniae. The extent of the decline in pulmonary resistance in both animal groups was evaluated in terms of the overall survival and pulmonary bacterial clearance. Both survival and pulmonary clearance of S. pneumoniae were lower in the TLR4-deficient mice with disrupted gut microbiota, compared to their intestinally healthy counterparts after pneumococcal infection. However, the degree of decline was much lower in the TLR4-deficient mice compared to the wild-type mice. Our findings indicate that impaired TLR4 function might be the basis of the reduced pulmonary resistance to S. pneumoniae caused by gut microbiota disruption.
Collapse
Affiliation(s)
- Hongyan Wang
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Pengjing Lian
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiaofei Niu
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
- Department of Veterinary Medicine, College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan, China
| | - Lihong Zhao
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiang Mu
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Bo Feng
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jingyun Li
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zhenni Liang
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jian Qiao
- Department of Pathophysiology, College of Veterinary Medicine, China Agricultural University, Beijing, China
- * E-mail:
| |
Collapse
|
22
|
Anderson R, Nel JG, Feldman C. Multifaceted Role of Pneumolysin in the Pathogenesis of Myocardial Injury in Community-Acquired Pneumonia. Int J Mol Sci 2018; 19:E1147. [PMID: 29641429 PMCID: PMC5979279 DOI: 10.3390/ijms19041147] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/14/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022] Open
Abstract
Pneumolysin (PLY), a member of the family of Gram-positive bacterial, cholesterol-dependent, β-barrel pore-forming cytolysins, is the major protein virulence factor of the dangerous respiratory pathogen, Streptococcus pneumoniae (pneumococcus). PLY plays a major role in the pathogenesis of community-acquired pneumonia (CAP), promoting colonization and invasion of the upper and lower respiratory tracts respectively, as well as extra-pulmonary dissemination of the pneumococcus. Notwithstanding its role in causing acute lung injury in severe CAP, PLY has also been implicated in the development of potentially fatal acute and delayed-onset cardiovascular events, which are now recognized as being fairly common complications of this condition. This review is focused firstly on updating mechanisms involved in the immunopathogenesis of PLY-mediated myocardial damage, specifically the direct cardiotoxic and immunosuppressive activities, as well as the indirect pro-inflammatory/pro-thrombotic activities of the toxin. Secondly, on PLY-targeted therapeutic strategies including, among others, macrolide antibiotics, natural product antagonists, cholesterol-containing liposomes, and fully humanized monoclonal antibodies, as well as on vaccine-based preventive strategies. These sections are preceded by overviews of CAP in general, the role of the pneumococcus as the causative pathogen, the occurrence and types of CAP-associated cardiac complication, and the structure and biological activities of PLY.
Collapse
Affiliation(s)
- Ronald Anderson
- Department of Immunology and Institute for Cellular and Molecular Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa.
| | - Jan G Nel
- Department of Haematology, Faculty of Health Sciences, University of Pretoria and Tshwane Academic Division of the National Health Laboratory Service, Pretoria 0001, South Africa.
| | - Charles Feldman
- Division of Pulmonology, Department of Internal Medicine, Charlotte Maxeke Johannesburg Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 0002, South Africa.
| |
Collapse
|
23
|
|