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Merdrignac L, Aït El Belghiti F, Pandolfi E, Acosta L, Fabiánová K, Habington A, García Cenoz M, Bøås H, Toubiana J, Tozzi AE, Jordan I, Zavadilová J, O'Sullivan N, Navascués A, Flem E, Croci I, Jané M, Křížová P, Cotter S, Fernandino L, Bekkevold T, Muñoz-Almagro C, Bacci S, Kramarz P, Kissling E, Savulescu C. Effectiveness of one and two doses of acellular pertussis vaccines against laboratory-confirmed pertussis requiring hospitalisation in infants: Results of the PERTINENT sentinel surveillance system in six EU/EEA countries, December 2015 - December 2019. Vaccine 2024; 42:2370-2379. [PMID: 38472070 PMCID: PMC11007387 DOI: 10.1016/j.vaccine.2024.02.090] [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: 11/21/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Monitoring effectiveness of pertussis vaccines is necessary to adapt vaccination strategies. PERTINENT, Pertussis in Infants European Network, is an active sentinel surveillance system implemented in 35 hospitals across six EU/EEA countries. We aim to measure pertussis vaccines effectiveness (VE) by dose against hospitalisation in infants aged <1 year. METHODS From December 2015 to December 2019, participating hospitals recruited all infants with pertussis-like symptoms. Cases were vaccine-eligible infants testing positive for Bordetella pertussis by PCR or culture; controls were those testing negative to all Bordetella spp. For each vaccine dose, we defined an infant as vaccinated if she/he received the corresponding dose >14 days before symptoms. Unvaccinated were those who did not receive any dose. We calculated (one-stage model) pooled VE as 100*(1-odds ratio of vaccination) adjusted for country, onset date (in 3-month categories) and age-group (when sample allowed it). RESULTS Of 1,393 infants eligible for vaccination, we included 259 cases and 746 controls. Median age was 16 weeks for cases and 19 weeks for controls (p < 0.001). Median birth weight and gestational age were 3,235 g and week 39 for cases, 3,113 g and week 39 for controls. Among cases, 119 (46 %) were vaccinated: 74 with one dose, 37 two doses, 8 three doses. Among controls, 469 (63 %) were vaccinated: 233 with one dose, 206 two doses, 30 three doses. Adjusted VE after at least one dose was 59 % (95 %CI: 36-73). Adjusted VE was 48 % (95 %CI: 5-71) for dose one (416 eligible infants) and 76 % (95 %CI: 43-90) for dose two (258 eligible infants). Only 42 infants were eligible for the third dose. CONCLUSIONS Our results suggest moderate one-dose and two-dose VE in infants. Larger sample size would allow more precise estimates for dose one, two and three.
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Affiliation(s)
| | | | - Elisabetta Pandolfi
- Preventive and Predictive Medicine Research Unit, Bambino Gesù Children's Hospital, IRCSS, Rome, Italy
| | - Lesly Acosta
- Public Health Agency of Catalonia (ASPCAT), Barcelona, Spain; Departament d'Estadística i Investigació Operativa, Universitat Politècnica de Catalunya- BarcelonaTech (UPC), Barcelona, Spain
| | | | | | - Manuel García Cenoz
- Instituto de Salud Pública de Navarra, IdiSNA - Navarre Institute for Health Research, Pamplona, Spain
| | - Håkon Bøås
- Division of Infection Control, Norwegian Institute of Public Health, P.O. Box 222, Skøyen, 0213 Oslo, Norway
| | - Julie Toubiana
- Biodiversité et Epidémiologie des bactéries et pathogènes, Institut Pasteur, Paris, France; National Reference Center for Whooping Cough and Other Bordetella Infections, Institut Pasteur, Paris, France
| | - Alberto E Tozzi
- Preventive and Predictive Medicine Research Unit, Bambino Gesù Children's Hospital, IRCSS, Rome, Italy
| | - Iolanda Jordan
- Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Barcelona, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | | | | | | | - Elmira Flem
- Division of Infection Control, Norwegian Institute of Public Health, P.O. Box 222, Skøyen, 0213 Oslo, Norway
| | - Ilena Croci
- Preventive and Predictive Medicine Research Unit, Bambino Gesù Children's Hospital, IRCSS, Rome, Italy
| | - Mireia Jané
- Public Health Agency of Catalonia (ASPCAT), Barcelona, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Barcelona, Spain; University of Barcelona, Barcelona, Spain
| | - Pavla Křížová
- National Institute of Public Health, Prague, Czech Republic
| | | | - Leticia Fernandino
- Instituto de Salud Pública de Navarra, IdiSNA - Navarre Institute for Health Research, Pamplona, Spain
| | - Terese Bekkevold
- Division of Infection Control, Norwegian Institute of Public Health, P.O. Box 222, Skøyen, 0213 Oslo, Norway
| | - Carmen Muñoz-Almagro
- Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, Barcelona, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Barcelona, Spain; Medicine Department, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Sabrina Bacci
- European Centre for Diseases Control and Prevention, Stockholm, Sweden
| | - Piotr Kramarz
- European Centre for Diseases Control and Prevention, Stockholm, Sweden
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Briga M, Goult E, Brett TS, Rohani P, Domenech de Cellès M. Maternal pertussis immunization and the blunting of routine vaccine effectiveness: a meta-analysis and modeling study. Nat Commun 2024; 15:921. [PMID: 38297003 PMCID: PMC10830464 DOI: 10.1038/s41467-024-44943-7] [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: 06/16/2023] [Accepted: 01/10/2024] [Indexed: 02/02/2024] Open
Abstract
A key goal of pertussis control is to protect infants too young to be vaccinated, the age group most vulnerable to this highly contagious respiratory infection. In the last decade, maternal immunization has been deployed in many countries, successfully reducing pertussis in this age group. Because of immunological blunting, however, this strategy may erode the effectiveness of primary vaccination at later ages. Here, we systematically reviewed the literature on the relative risk (RR) of pertussis after primary immunization of infants born to vaccinated vs. unvaccinated mothers. The four studies identified had ≤6 years of follow-up and large statistical uncertainty (meta-analysis weighted mean RR: 0.71, 95% CI: 0.38-1.32). To interpret this evidence, we designed a new mathematical model with explicit blunting mechanisms and evaluated maternal immunization's short- and long-term impact on pertussis transmission dynamics. We show that transient dynamics can mask blunting for at least a decade after rolling out maternal immunization. Hence, the current epidemiological evidence may be insufficient to rule out modest reductions in the effectiveness of primary vaccination. Irrespective of this potential collateral cost, we predict that maternal immunization will remain effective at protecting unvaccinated newborns, supporting current public health recommendations.
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Affiliation(s)
- Michael Briga
- Infectious Disease Epidemiology Group, Max Planck Institute for Infection Biology, Berlin, Germany.
| | - Elizabeth Goult
- Infectious Disease Epidemiology Group, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Tobias S Brett
- Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Pejman Rohani
- Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
- Center of Ecology of Infectious Diseases, University of Georgia, Athens, GA, 30602, USA
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3
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Tessier E, Newport D, Tran A, Nash SG, Mensah AA, Yun Wang T, Shantikumar S, Campbell H, Amirthalingam G, Todkill D. Pertussis immunisation strategies to optimise infant pertussis control: A narrative systematic review. Vaccine 2023; 41:5957-5964. [PMID: 37658001 DOI: 10.1016/j.vaccine.2023.08.073] [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: 06/22/2023] [Revised: 08/20/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023]
Abstract
OBJECTIVE Countries routinely offering acellular pertussis vaccine, where long-term protection is not sustained, have the challenge of selecting an optimal schedule to minimise disease among young infants. We conducted a narrative systematic review and synthesis of information to evaluate different pertussis immunisation strategies at controlling pertussis disease, hospitalisation, deaths, and vaccine effectiveness among young infants. METHODS We conducted a review of the literature on studies about the primary, booster, and/or maternal vaccination series and synthesised findings narratively. Countries offering the first three doses of vaccine within six-months of life and a booster on or before the second year or life were defined as accelerated primary and booster schedules, respectively. Countries offering primary and booster doses later were defined as extended primary and booster schedules. All search results were screened, and articles reviewed and reconciled, by two authors. The Risk of Bias in Non-randomised Studies of Intervention tool was used to evaluate the risk of bias. FINDINGS A total of 98 studies were included in the analyses and the following recurring themes were described: timing of vaccination, vaccine coverage, waning immunity/vaccine effectiveness, direct and indirect effectiveness, switching from an accelerated to extended schedule, impact of changes in testing. The risk of bias was generally low to moderate for most studies. CONCLUSION Comparing schedules is challenging and there was insufficient evidence to that one schedule was superior to another. Countries must select a schedule that maintains high vaccine coverage and reduced the risk of delaying the delivery vaccines to protect infants.
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Affiliation(s)
| | - Daniel Newport
- Warwick Medical School, University of Warwick, Coventry, UK; University Hospitals of Birmingham NHS Trust, Birmingham, UK
| | - Anh Tran
- UK Health Security Agency, London, UK
| | | | | | | | | | | | | | - Daniel Todkill
- UK Health Security Agency, London, UK; Warwick Medical School, University of Warwick, Coventry, UK
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Levy C, Cohen R, Béchet S, Ravilly S, Werner A, Romain O, Guiso N. Pediatric ambulatory pertussis epidemiology in France, recent updates. Infect Dis Now 2023; 53:104727. [PMID: 37268040 DOI: 10.1016/j.idnow.2023.104727] [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: 04/05/2023] [Revised: 04/11/2023] [Accepted: 05/24/2023] [Indexed: 06/04/2023]
Abstract
OBJECTIVES Following various changes in the vaccine strategy in 2013 and the mandatory vaccination in 2018, we aimed to analyze the vaccination status, age, and source of contamination of pertussis and parapertussis cases in outpatient surveillance. PATIENTS AND METHODS Confirmed pertussis and parapertussis cases were enrolled by 35 pediatricians. RESULTS From 2014 to 2022, 73 confirmed cases of pertussis (n = 65) and parapertussis (n = 8) were reported. For children below 6 years of age, the number of cases with a 2 + 1 schedule (n = 22) was higher than that of those with a 3 + 1 schedule (n = 7). The age of cases with a 3 + 1 or a 2 + 1 schedule was not significantly different (3.8y ± 1.4 vs 4.2y ± 1.5). The main source of contamination was either adults or adolescents. CONCLUSION Vaccination status and source of contamination are crucial to study the impact of vaccination recommendations.
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Affiliation(s)
- C Levy
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France; Université Paris Est, IMRB-GRC GEMINI, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Orléans, France.
| | - R Cohen
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France; Université Paris Est, IMRB-GRC GEMINI, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Orléans, France
| | - S Béchet
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Orléans, France
| | - S Ravilly
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Orléans, France
| | - A Werner
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France; AFPA, Association Française de Pédiatrie Ambulatoire, Orléans, France
| | - O Romain
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France
| | - N Guiso
- Independent Expert, Paris, France
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Yin Z, Zheng C, Fang Q, Wen T, Wang S, Li J, Gong X, Xiang Z. Comparing the pertussis antibody levels of healthy children immunized with four doses of DTap-IPV/Hib (Pentaxim) combination vaccine and DTaP vaccine in Quzhou, China. Front Immunol 2023; 13:1055677. [PMID: 36685526 PMCID: PMC9852981 DOI: 10.3389/fimmu.2022.1055677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/16/2022] [Indexed: 01/09/2023] Open
Abstract
Despite the high coverage of pertussis vaccines in high-income countries, pertussis resurgence has been reported in recent years, and has stimulated interest in the effects of vaccines and vaccination strategies. Immunoglobulin G (IgG) antibodies against pertussis toxoid (PT), filamentous hemagglutinin (FHA), and pertactin (PRN) after immunization with four doses of co-purified or component vaccines were determined by enzyme-linked immunosorbent assay (ELISA). Serological data of PT-IgG geometric mean concentrations (GMCs) over time since vaccination were used to fit the mathematical models. A total of 953 children were included in this study; 590 participants received four doses of the component acellular vaccine and 363 participants received four doses of the co-purified acellular vaccine. The GMCs and the seropositivity rate of pertussis IgG were significantly influenced by the production methods, and the immunogenicity of the component acellular vaccine was superior to that of the co-purified acellular vaccine. The fitted mathematical models for the component acellular vaccine and the co-purified acellular vaccine were Y=91.20e-0.039x and Y=37.71x-0.493, respectively. The initial GMCs of the component acellular vaccine was higher than that of the co-purified acellular vaccine, but both were similar at 72 months after immunization. Pertussis IgG levels waned over time after four doses of acellular pertussis vaccine, regardless of whether component or co-purified vaccine was used. The development and promotion of component acellular pertussis vaccines should be accelerated in China, and booster doses of pertussis vaccine in adolescents, adults, and pregnant women should be employed.
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Affiliation(s)
- Zhiying Yin
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China,School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China,*Correspondence: Zhiying Yin, ; Ziling Xiang,
| | - Canjie Zheng
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China
| | - Quanjun Fang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China
| | - Tingcui Wen
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shuangqing Wang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China
| | - Junji Li
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China
| | - Xiaoying Gong
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China
| | - Ziling Xiang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang, China,*Correspondence: Zhiying Yin, ; Ziling Xiang,
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Konstantinova YE, Babachenko IV, Kharit SM, Bobova EI, Ioffe MY. The clinical case of a combined new coronavirus infection and whooping cough in an unvaccinated child. JOURNAL INFECTOLOGY 2023. [DOI: 10.22625/2072-6732-2022-14-5-109-115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Whooping cough remains a life-threatening infection, especially for unvaccinated young children. The article describes a case of severe and non-smooth course of whooping cough in an unvaccinated girl of 4 months of life from the family hearth of whooping cough and COVID-19. There were cases of COVID-19 and whooping cough in adults in the family, occurring under the mask of a mild respiratory infection, not verified before they were detected in a child and did not require hospitalization. The combined course of two infectious diseases COVID-19 and whooping cough in a 4-monthold unvaccinated girl contributed to the prolongation of the duration of whooping cough, prolonged release of SARS-COV-2 RNA, the late appearance of hematological changes typical of whooping cough, the development of respiratory delays and re-hospitalization of a patient with prolonged respiratory support. In the context of the COVID-19 pandemic, the coverage of routine vaccination has significantly decreased, as a result of which children of the first years of life have become more vulnerable to vaccine-controlled infections, which causes the risk of combined infections.
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Affiliation(s)
| | - I. V. Babachenko
- Pediatric Research and Clinical Center for Infectious Disease; Saint-Petersburg State Pediatric Medical University
| | - S. M. Kharit
- Pediatric Research and Clinical Center for Infectious Disease; Saint-Petersburg State Pediatric Medical University
| | - E. I. Bobova
- Pediatric Research and Clinical Center for Infectious Disease
| | - M. Ya. Ioffe
- Pediatric Research and Clinical Center for Infectious Disease
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Matczak S, Levy C, Fortas C, Cohen JF, Béchet S, Aït El Belghiti F, Guillot S, Trombert-Paolantoni S, Jacomo V, Savitch Y, Paireau J, Brisse S, Guiso N, Lévy-Bruhl D, Cohen R, Toubiana J. Association between the COVID-19 pandemic and pertussis derived from multiple nationwide data sources, France, 2013 to 2020. Euro Surveill 2022; 27:2100933. [PMID: 35748301 PMCID: PMC9229195 DOI: 10.2807/1560-7917.es.2022.27.25.2100933] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 02/18/2022] [Indexed: 05/22/2023] Open
Abstract
BackgroundInterventions to mitigate the COVID-19 pandemic may impact other respiratory diseases.AimsWe aimed to study the course of pertussis in France over an 8-year period including the beginning of the COVID-19 pandemic and its association with COVID-19 mitigation strategies, using multiple nationwide data sources and regression models.MethodsWe analysed the number of French pertussis cases between 2013 and 2020, using PCR test results from nationwide outpatient laboratories (Source 1) and a network of the paediatric wards from 41 hospitals (Source 2). We also used reports of a national primary care paediatric network (Source 3). We conducted a quasi-experimental interrupted time series analysis, relying on negative binomial regression models. The models accounted for seasonality, long-term cycles and secular trend, and included a binary variable for the first national lockdown (start 16 March 2020).ResultsWe identified 19,039 pertussis cases from these data sources. Pertussis cases decreased significantly following the implementation of mitigation measures, with adjusted incidence rate ratios of 0.10 (95% CI: 0.04-0.26) and 0.22 (95% CI: 0.07-0.66) for Source 1 and Source 2, respectively. The association was confirmed in Source 3 with a median of, respectively, one (IQR: 0-2) and 0 cases (IQR: 0-0) per month before and after lockdown (p = 0.0048).ConclusionsThe strong reduction in outpatient and hospitalised pertussis cases suggests an impact of COVID-19 mitigation measures on pertussis epidemiology. Pertussis vaccination recommendations should be followed carefully, and disease monitoring should be continued to detect any resurgence after relaxation of mitigation measures.
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Affiliation(s)
- Soraya Matczak
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, Paris, France
- Department of General Pediatrics and Pediatric Infectious Diseases, Hôpital Necker-Enfants Malades, APHP, Université Paris Cité, Paris, France
| | - Corinne Levy
- Université Paris Est, IMRB-GRC GEMINI, Créteil, France
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France
- GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Paris, France
- Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France
- AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France
| | - Camille Fortas
- Santé publique France, French National Public Health Agency, Saint-Maurice, France
| | - Jérémie F Cohen
- Department of General Pediatrics and Pediatric Infectious Diseases, Hôpital Necker-Enfants Malades, APHP, Université Paris Cité, Paris, France
- Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center of Research in Epidemiology and Statistics, INSERM UMR 1153, Université Paris Cité, Paris, France
| | - Stéphane Béchet
- Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | | | - Sophie Guillot
- National Reference Center for Whooping Cough and other Bordetella infections, Institut Pasteur, Paris, France
| | | | | | - Yann Savitch
- Santé publique France, French National Public Health Agency, Saint-Maurice, France
| | - Juliette Paireau
- Institut Pasteur, Université Paris Cité, CNRS UMR2000, Mathematical Modelling of Infectious Diseases Unit, Paris, France
- Santé publique France, French National Public Health Agency, Saint-Maurice, France
| | - Sylvain Brisse
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, Paris, France
- National Reference Center for Whooping Cough and other Bordetella infections, Institut Pasteur, Paris, France
| | | | - Daniel Lévy-Bruhl
- Santé publique France, French National Public Health Agency, Saint-Maurice, France
| | - Robert Cohen
- Université Paris Est, IMRB-GRC GEMINI, Créteil, France
- ACTIV, Association Clinique et Thérapeutique Infantile du Val-de-Marne, Créteil, France
- GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Paris, France
- Clinical Research Center (CRC), Centre Hospitalier Intercommunal de Créteil, Créteil, France
- AFPA, Association Française de Pédiatrie Ambulatoire, Saint-Germain-en-Laye, France
| | - Julie Toubiana
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens, Paris, France
- National Reference Center for Whooping Cough and other Bordetella infections, Institut Pasteur, Paris, France
- Department of General Pediatrics and Pediatric Infectious Diseases, Hôpital Necker-Enfants Malades, APHP, Université Paris Cité, Paris, France
- GPIP, Groupe de Pathologie Infectieuse Pédiatrique, Paris, France
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Deghmane AE, Taha MK. Changes in Invasive Neisseria meningitidis and Haemophilus influenzae Infections in France during the COVID-19 Pandemic. Microorganisms 2022; 10:microorganisms10050907. [PMID: 35630352 PMCID: PMC9147110 DOI: 10.3390/microorganisms10050907] [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: 03/22/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 11/20/2022] Open
Abstract
BackgroundSince the appearance of COVID-19 in January 2020, invasive bacterial infections have decreased significantly worldwide. However, alterations in age and sex distributions, clinical forms, phenotypes, and genotypes of isolates have not been analyzed. Our goal is to present and discuss these data considering the current COVID-19 pandemic situation. Methods: The data of the national reference center for meningococci and Haemophilus influenzae in France were mined to examine the above aspects of invasive bacterial infection before (2018−2019) and after (2020−2021) the COVID-19 pandemic. Detailed epidemiological, clinical, and microbiological data were collected, and whole genome sequencing was carried out on meningococcal isolates (n = 1466). Results: In addition to the overall decline in the number of cases, various changes in age, sex, and phenotypes of isolates were also noted. As for N. meningitidis, more cases were observed in adults, as well as more invasive pneumopathies. Furthermore, fewer hyperinvasive meningococcal genotypes have circulated since COVID-19 emerged. The situation has been different for H. influenzae, as the number of invasive cases among adults decreased due to a reduction in non-typeable isolates. In contrast, cases due to serotypeable isolates, particularly serotypes a and b, increased in children <5 years-old. Conclusions: It is possible that measures implemented to stop COVID-19 may have reduced the circulation of N. meningitidis and H. influenzae isolates, but to a variable extent. This may be due to differences in circulation between these two species according to age groups. Vaccination schedules against these two species may have also influenced the evolution of these invasive bacterial infections since the emergence of the COVID-19 pandemic.
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Debin M, Launay T, Rossignol L, Ait El Belghiti F, Brisse S, Guillot S, Guiso N, Levy-Bruhl D, Merdrignac L, Toubiana J, Blanchon T, Hanslik T. Pertussis surveillance results from a French general practitioner network, France, 2017 to 2020. Euro Surveill 2022; 27:2100515. [PMID: 35485270 PMCID: PMC9052767 DOI: 10.2807/1560-7917.es.2022.27.17.2100515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 02/04/2022] [Indexed: 12/05/2022] Open
Abstract
IntroductionIn France, three complementary surveillance networks involving hospitals and paediatrician practices currently allow pertussis surveillance among infants (<1 year old) and children (1-12 years old). Data on incidences among adolescents (13-17 years old) and adults (≥ 18 years) are scarce. In 2017, a sentinel surveillance system called Sentinelles network, was implemented among general practitioners (GPs).AimThe purpose of Sentinelles network is to assess pertussis incidence, monitor the cases' age distribution and evaluate the impact of the country's vaccination policy. We present the results from the first 4 years of this surveillance.MethodsGPs of the French Sentinelles network reported weekly numbers of epidemiologically or laboratory-confirmed cases and their characteristics.ResultsA total of 132 cases were reported over 2017-2020. Estimated national incidence rates per 100,000 inhabitants were 17 (95% confidence interval (CI): 12-22) in 2017, 10 (95% CI: 6-14) in 2018, 15 (95% CI: 10-20) in 2019 and three (95% CI: 1-5) in 2020. The incidence rate was significantly lower in 2020 than in 2017-2019. Women were significantly more affected than men (83/132; 63% of women, p = 0.004); 66% (87/132) of cases were aged 15 years or over (median age: 31.5 years; range: 2 months-87 years). Among 37 vaccinated cases with data, 33 had received the recommended number of doses for their age.ConclusionsThese results concur with incidences reported in other European countries, and with studies showing that the incidences of several respiratory diseases decreased in 2020 during the COVID-19 pandemic. The results also suggest a shift of morbidity towards older age groups, and a rapid waning of immunity after vaccination, justifying to continue this surveillance.
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Affiliation(s)
- Marion Debin
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
| | - Titouan Launay
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
| | - Louise Rossignol
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
- Université Paris Cité, Département de médecine générale, Paris, France
| | | | - Sylvain Brisse
- Institut Pasteur, National Reference Center for Whooping Cough and other Bordetella Infections, Paris, France
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens Unit, Paris, France
| | - Sophie Guillot
- Institut Pasteur, National Reference Center for Whooping Cough and other Bordetella Infections, Paris, France
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens Unit, Paris, France
| | | | - Daniel Levy-Bruhl
- Santé publique France, Département des maladies infectieuses, Saint-Maurice, France
| | - Lore Merdrignac
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
- Epiconcept, Paris, France
| | - Julie Toubiana
- Institut Pasteur, National Reference Center for Whooping Cough and other Bordetella Infections, Paris, France
- Institut Pasteur, Université Paris Cité, Biodiversity and Epidemiology of Bacterial Pathogens Unit, Paris, France
- Université Paris Cité, Service de Pédiatrie Générale et Maladies Infectieuses, Hôpital Necker -Enfants malades, Assistance Publique-Hôpitaux de Paris, AP-HP, Paris, France
| | - Thierry Blanchon
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
| | - Thomas Hanslik
- Sorbonne Université, INSERM, Institut Pierre-Louis d'Épidémiologie et de santé publique, Paris, France
- Assistance Publique-Hôpitaux de Paris, AP-HP, Hôpital Ambroise Paré, Service de Médecine Interne, Boulogne Billancourt, Paris, France
- Université Versailles-Saint-Quentin-en-Yvelines, UVSQ, UFR des sciences de la santé Simone-Veil, Versailles, France
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10
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Zhang J, Deng J, Yang Y. Pertussis vaccination in Chinese children with increasing reported pertussis cases. THE LANCET. INFECTIOUS DISEASES 2022; 22:21-22. [PMID: 34953548 DOI: 10.1016/s1473-3099(21)00752-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/23/2021] [Indexed: 06/14/2023]
Affiliation(s)
- Jiaosheng Zhang
- Department of Infectious Diseases, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Jikui Deng
- Department of Infectious Diseases, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Yonghong Yang
- Microbiology Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
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