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Tariku MK, Belete AH, Worede DT, Bante SA, Alehegn AA, Assen BK, Tegegne BA, Misikir SW. Attack Rate, Case Fatality Rate and Predictors of Pertussis Outbreak During Pertussis Outbreak Investigation in Ethiopia: Systematic Review and Meta-Analysis. J Epidemiol Glob Health 2024; 14:327-336. [PMID: 38748376 PMCID: PMC11176133 DOI: 10.1007/s44197-024-00234-4] [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: 03/20/2024] [Accepted: 04/22/2024] [Indexed: 06/15/2024] Open
Abstract
BACKGROUND Pertussis, a highly contagious, vaccine-preventable respiratory infection caused by Bordetella pertussis, is a leading global public health issue. Ethiopia is currently conducting multiple pertussis outbreak investigations, but there is a lack of comprehensive information on attack rate, case fatality rate, and infection predictors. This study aimed to measure attack rates, case fatality rates, and factors associated with pertussis outbreak. METHODS This study conducted a systematic review and meta-analysis of published and unpublished studies on pertussis outbreaks in Ethiopia from 2009 to 2023, using observational study designs, using the guideline Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The study utilized databases like Science Direct, MEDLINE/PubMed, African Journals Online, Google Scholar and registers. The data were collected using an Excel Spreadsheet and then exported to STATA version 17 for analysis. Subgroup analysis was conducted to identify potential disparities. A random effects model was used to consider heterogeneity among studies. I2-squared test statistics were used to assess heterogeneity. The attack rate, case fatality rate, and odds ratio (OR) were presented using forest plots with a 95% confidence interval. Egger's and Begg's tests were used to evaluate the publication bias. RESULTS Seven pertussis outbreak investigations with a total of 2824 cases and 18 deaths were incorporated. The pooled attack and case fatality rates were 10.78 (95% CI: 8.1-13.5) per 1000 population and 0.8% (95% CI: 0.01-1.58%), respectively. The highest and lowest attack rates were in Oromia (5.57 per 1000 population and in the Amhara region (2.61 per 1000 population), respectively. Predictor of pertussis outbreak were being unvaccinated [odds ratio (OR) = 3.05, 95% CI: 1.83-4.27] and contact history [OR = 3.44, 95% CI: 1.69-5.19]. CONCLUSION Higher and notable variations in attack and case fatality rates were reported. Being unvaccinated and having contact history were the predictors of contracting pertussis disease in Ethiopia. Enhancing routine vaccination and contact tracing efforts should be strengthened.
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Affiliation(s)
- Mengistie Kassahun Tariku
- Department of Public Health, College of Health Science, Debre Markos University, Debre Markos, Ethiopia.
| | - Abebe Habtamu Belete
- Department of Public Health, College of Health Science, Debre Markos University, Debre Markos, Ethiopia
| | - Daniel Tarekegn Worede
- Department of Public Health, College of Health Science, Debre Markos University, Debre Markos, Ethiopia
| | - Simachew Animen Bante
- Department of Midwifery, College of Medicine and Health Science, Bahir Dar University, Bahir Dar, Ethiopia
| | | | | | - Bantayehu Addis Tegegne
- Department of Pharmacy, College of Health Science, Debre Markos University, Debre Markos, Ethiopia
| | - Sewnet Wongiel Misikir
- Department of Medical Laboratory Technology, Felege Hiwot Comprehensive Specialized Hospital, Bahir Dar, 680, Ethiopia
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Gauld N, Martin SNP, Sinclair OTR, Dumble F, Petousis-Harris H, Grant CC. Mapping the maternal vaccination journey and influencing factors for Māori women in Aotearoa New Zealand: a qualitative study. J Prim Health Care 2022; 14:352-362. [PMID: 36592768 DOI: 10.1071/hc21166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 08/31/2022] [Indexed: 01/05/2023] Open
Abstract
Introduction Uptake of maternal vaccinations (MVs) is suboptimal in Aotearoa New Zealand, particularly for Māori. Aim To describe Māori women's journeys regarding maternal pertussis and influenza vaccinations and explore influences on uptake. Methods Semi-structured interviews were conducted in Waikato, Aotearoa New Zealand, with pregnant or recently pregnant Māori women, and separately with Māori healthcare professionals (HCPs) to understand women's decisions regarding MVs and enablers and barriers to uptake. Results Nine women and nine HCPs were interviewed. Verbal communications from midwives, general practice and pharmacy strongly influenced women's journeys. Women's decisions appeared largely straight-forward, with influences including awareness, knowledge, underlying beliefs and previous MVs. Enablers for MV uptake included HCPs' discussions, pro-vaccination beliefs, and accessibility. Barriers for MV uptake included poverty (and transport), lack of awareness, insufficient knowledge of benefits, late presentation to the midwife and other commitments or challenges in the women's lives affecting prioritisation of the vaccine. Misconceptions, seasonality, and lower HCP emphasis impaired influenza vaccination uptake. Discussion With multiple barriers to accessing MVs, HCPs who see pregnant women are the primary resource to improve awareness, knowledge, and access through kōrero (discussions) with the woman and, where possible, being able to administer the vaccinations. These HCPs need to be well-informed, aware of likely concerns women may have and how to address them, encourage these discussions and preferably be trusted.
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Affiliation(s)
- Natalie Gauld
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, and School of Pharmacy, The University of Auckland, Auckland, New Zealand
| | | | | | - Felicity Dumble
- Public Health, Waikato District Health Board, Waikato, New Zealand
| | - Helen Petousis-Harris
- Department of General Practice, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Cameron C Grant
- Department of Paediatrics: Child and Youth Health, The University of Auckland, and Starship Children's Health, Auckland, New Zealand
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Wu X, Du Q, Li D, Yuan L, Meng Q, Fu Z, Xu H, Yao K, Zhao R. A Cross-Sectional Study Revealing the Emergence of Erythromycin-Resistant Bordetella pertussis Carrying ptxP3 Alleles in China. Front Microbiol 2022; 13:901617. [PMID: 35923401 PMCID: PMC9342848 DOI: 10.3389/fmicb.2022.901617] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022] Open
Abstract
Background Previous limited studies have identified that Bordetella pertussis (B. pertussis) isolates circulating in China possess distinct molecular features and high rates of erythromycin-resistance (ER). Their evolution and potential impact on the prevention and control of global pertussis are worthy of attention. Methods The present cross-sectional study involved 311 non-duplicate and unrelated B. pertussis strains isolated from Chinese children from 2017 to 2019. Their antimicrobial susceptibilities were assessed using both E-test strips and Kirby-Bauer (KB) disk diffusion methods. Seven virulence-related genes (ptxA, ptxC, ptxP, prn, fim2, fim3, and tcfA2) and the A2047G mutation in the 23S rRNA gene were detected by PCR. Based on the susceptibilities and genotypes, 50 isolates were selected for multi-locus variable-number tandem-repeat analysis (MLVA) typing and whole-genome sequencing. Results A total of 311 B. pertussis strains were isolated from children with a median age of 4 months (interquartile range: 2–9 months). Strains carrying the ptxP1 allele were more frequent (84.9%, 264/311), were always ER (except for one strain), and were mainly related to ptxA1/ptxC1/prn1 alleles (99.6%, 263/264). The remaining 47 (15.1%) strains carried the ptxP3 allele, mainly harboring the ptxA1/ptxC2/prn2 alleles (93.6%, 44/47), and were sensitive to erythromycin (except for two strains). The two ER-ptxP3 isolates were first identified in China, belonged to MT27 and MT28 according to MLVA, and were classified into sub-lineage IVd by phylogenetic analysis of their genome sequences. This sub-lineage also includes many strains carrying the ptxP3 allele spreading in developed countries. For each tested antimicrobial, the susceptibilities judged by KB disks were consistent with those determined by E-test strips. Conclusion The present results reveal that B. pertussis strains with the ptxP1-ER profile still dominate in China, and a few strains carrying the ptxP3 allele have acquired the A2047G mutation in the 23S rRNA gene and the ER phenotype. The surveillance of the drug susceptibility of B. pertussis is necessary for all countries, and the KB disk method can be adopted as a screening test.
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Affiliation(s)
- Xiaoying Wu
- Department of Infectious Diseases, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing, China
| | - Qianqian Du
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Dongfang Li
- BGI Pathogenesis Pharmaceutical Technology, BGI-Shenzhen, Shenzhen, China
| | - Lin Yuan
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Qinghong Meng
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Zhou Fu
- Department of Respiratory Diseases, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Hongmei Xu
- Department of Infectious Diseases, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing, China
| | - Kaihu Yao
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
- *Correspondence: Kaihu Yao,
| | - Ruiqiu Zhao
- Department of Infectious Diseases, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing, China
- Ruiqiu Zhao,
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Characterization of Bordetella pertussis Strains Isolated from India. Pathogens 2022; 11:pathogens11070794. [PMID: 35890038 PMCID: PMC9322502 DOI: 10.3390/pathogens11070794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/11/2022] [Accepted: 06/16/2022] [Indexed: 11/25/2022] Open
Abstract
Despite high level vaccination and the availability of two different types of vaccines, whole cell (wP) and acellular vaccines (aP), the resurgence of pertussis has been reported in many countries. Antigenic variation within circulating and vaccine strains is the most documented reason reported for the resurgence of pertussis. Research on genetic divergence among circulating and vaccine strains has largely been reported in countries using aP vaccines. There are inadequate data available for antigenic variation in B. pertussis from wP-using countries. India has used wP for more than 40 years in their primary immunization program. The present study reports five clinical isolates of B. pertussis from samples of pediatric patients with pertussis symptoms observed in India. Genotypic and phenotypic characterization of clinical isolates were performed by serotyping, genotyping, whole genome analyses and comparative genomics. All clinical isolates showed serotype 1, 2 and 3 based on the presence of fimbriae 2 and 3. Genotyping showed genetic similarities in allele types for five aP genes within vaccine strains and clinical isolates reported from India. The presence of the ptxP3 genotype was observed in two out of five clinical isolates. Whole-genome sequencing was performed for clinical isolates using the hybrid strategy of combining Illumina (short reads) and oxford nanopore (long reads) sequencing strategies. Clinical isolates (n = 5) and vaccine strains (n = 7) genomes of B. pertussis from India were compared with 744 B. pertussis closed genomes available in the public databases. The phylogenomic comparison of B. pertussis genomes reported from India will be advantageous in better understanding pertussis resurgence reported globally with respect to pathogen adaptation.
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Li D, Xu M, Li G, Zheng Y, Zhang Y, Xia D, Wang S, Chen Y. Mg/Al-LDH as a nano-adjuvant for pertussis vaccine: a evaluation compared with aluminum hydroxide adjuvant. NANOTECHNOLOGY 2022; 33:235102. [PMID: 35189608 DOI: 10.1088/1361-6528/ac56f3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Background. Layered double hydroxide (LDH) has been demonstrated as a highly efficient antigen platform to induce effective and durable immune response. However, whether LDH nanoparticles could act as an adjuvant for pertussis vaccines is still unknown. Here we evaluated the potential of Mg/Al-LDH as a nano-adjuvant to improve immune response against pertussis and compared it with commercial aluminum hydroxide (AH) adjuvant.Method. The Mg/Al-LDH nanoparticles were synthesized by a hydrothermal reaction. The morphology, structure and size of Mg/Al-LDH were characterized by transmission electron microscope, x-ray diffraction and MALVERN particle analysis. The ovalbumin and Pertussis toxin (PTd) was adsorbed to Mg/Al-LDH. The immune response of antigen-LDH complex was evaluated in mice, compared with commercial adjuvant alum. Hematoxylin-eosin staining was used to evaluate the inflammatory response at injection site.Results. The synthetic Mg/Al-LDH nanoparticles showed a typical hexagonal lamellar structure. The average size of synthetic nanoparticles was 102.9 nm with PDI of 0.13 and zeta potential was 44.4 mV. Mg/Al-LDH nanoparticles effectively adsorbed protein antigen and mediated antigen uptake by DC cells. Animal experiments showed that Mg/Al-LDH gave enhancement in anti-pertussis toxin (PTd) humoral immune response, which was considerable to commercial AH adjuvant. Finally, Mg/Al-LDH produced a slighter inflammatory response than AH at injection site and this injury was quickly recovered.Conclusion. Our study demonstrated the potential of Mg/Al-LDH as an effective adjuvant for pertussis vaccine, which induced comparable antibody response and had a better safety compared with commercial AH adjuvant.
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Affiliation(s)
- Dongdong Li
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Mengjie Xu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Gaotian Li
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Yu Zheng
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Yong Zhang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
| | - Dandan Xia
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, No. 26, Huatuo Street, Benxi 117004, People's Republic of China
| | - Shaoning Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, No. 26, Huatuo Street, Benxi 117004, People's Republic of China
| | - Yan Chen
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, No. 2699 Qianjin Street, Changchun 130012, People's Republic of China
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Howe AS, Gauld NJ, Cavadino AY, Petousis-Harris H, Dumble F, Sinclair O, Grant CC. Increasing Uptake of Maternal Pertussis Vaccinations through Funded Administration in Community Pharmacies. Vaccines (Basel) 2022; 10:vaccines10020150. [PMID: 35214609 PMCID: PMC8876756 DOI: 10.3390/vaccines10020150] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 01/27/2023] Open
Abstract
Although maternal pertussis vaccination is recommended, uptake is suboptimal in New Zealand (NZ), despite full funding in general practice and hospitals. We determined whether funding maternal pertussis vaccination in community pharmacy increases its uptake. Pertussis vaccination during pregnancy was compared between non-contiguous, demographically similar regions of NZ. The pertussis vaccine was funded at pharmacies from Nov 2016 in one NZ region (Waikato), but not in comparator regions (Northland, Hawkes Bay). Vaccinations during pregnancy were determined from the National Immunisation Register, general practice and pharmacy claims data, and a maternity database. Comparisons were made using adjusted odds ratios (OR) and 95% confidence intervals (CI) for Nov 2015 to Oct 2016 versus Nov 2016 to Oct 2019. The odds of pregnancy pertussis vaccination increased in the post-intervention versus pre-intervention period with this increase being larger (p = 0.0014) in the intervention (35% versus 21%, OR = 2.07, 95% CI 1.89–2.27) versus the control regions (38% versus 26%, OR = 1.67, 95% CI 1.52–1.84). Coverage was lower for Māori versus non-Māori, but increased more for Māori in the intervention versus control regions (117% versus 38% increase). It was found that funding maternal pertussis vaccination in pharmacy increases uptake, particularly for Māori women. Measures to increase coverage should include reducing barriers to vaccines being offered by non-traditional providers, including pharmacies.
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Affiliation(s)
- Anna S. Howe
- Department of General Practice and Primary Health Care, University of Auckland, Auckland 1023, New Zealand;
- School of Health Sciences, University of Canterbury, Christchurch 1023, New Zealand
- Correspondence: ; Tel.: +64-99-232-130
| | - Natalie J. Gauld
- Department of Paediatrics, Child and Youth Health, University of Auckland, Auckland 1023, New Zealand; (N.J.G.); (C.C.G.)
- School of Pharmacy, University of Auckland, Auckland 1023, New Zealand
| | - Alana Y. Cavadino
- Department of Epidemiology and Biostatistics, School of Population Health, University of Auckland, Auckland 1023, New Zealand;
| | - Helen Petousis-Harris
- Department of General Practice and Primary Health Care, University of Auckland, Auckland 1023, New Zealand;
| | | | - Owen Sinclair
- Child, Women and Family Services, Waitakere Hospital, Waitemata District Health Board, Auckland 0610, New Zealand;
| | - Cameron C. Grant
- Department of Paediatrics, Child and Youth Health, University of Auckland, Auckland 1023, New Zealand; (N.J.G.); (C.C.G.)
- General Paediatrics, Starship Children’s Hospital, Auckland District Health Board, Auckland 1023, New Zealand
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Gauld N, Martin S, Sinclair O, Petousis-Harris H, Dumble F, Grant CC. Influences on Pregnant Women's and Health Care Professionals' Behaviour Regarding Maternal Vaccinations: A Qualitative Interview Study. Vaccines (Basel) 2022; 10:76. [PMID: 35062737 PMCID: PMC8779619 DOI: 10.3390/vaccines10010076] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 12/16/2022] Open
Abstract
The uptake of maternal influenza and pertussis vaccinations is often suboptimal. This study explores the factors influencing pregnant women's and health care professionals' (HCPs) behaviour regarding maternal vaccinations (MVs). Pregnant/recently pregnant women, midwives, pharmacists and general practice staff in Waikato, New Zealand, were interviewed. The analysis used the behaviour change wheel model. Interviews of 18 women and 35 HCPs revealed knowledge about MVs varied with knowledge deficiencies hindering the uptake, particularly for influenza vaccination. HCPs, especially midwives, were key in raising women's awareness of MVs. Experience with vaccinating, hospital work (for midwives) and training increased HCPs' knowledge and proactivity about MVs. A "woman's choice" philosophy saw midwives typically encouraging women to seek information and make their own decision. Women's decisions were generally based on knowledge, beliefs, HCPs' emphasis and their perceived risk, with little apparent influence from friends, family, or online or promotional material. General practice's concentration on children's vaccination and minimal antenatal contact limited proactivity with MVs. Busyness and prioritisation appeared to affect HCPs' proactivity. Multi-pronged interventions targeting HCPs and pregnant women and increasing MV access are needed. All HCPs seeing pregnant women should be well-informed about MVs, including how to identify and address women's questions or concerns about MVs to optimise uptake.
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Affiliation(s)
- Natalie Gauld
- Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland 1023, New Zealand;
- School of Pharmacy, University of Auckland, Auckland 1023, New Zealand
| | | | | | - Helen Petousis-Harris
- Department of General Practice and Primary Health Care, University of Auckland, Auckland 1023, New Zealand;
| | | | - Cameron C. Grant
- Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland 1023, New Zealand;
- General Paediatrics, Starship Children’s Hospital, Auckland 1023, New Zealand
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Shi T, Wang L, Du S, Fan H, Yu M, Ding T, Xu X, Zhang D, Huang L, Lu G. Mortality risk factors among hospitalized children with severe pertussis. BMC Infect Dis 2021; 21:1057. [PMID: 34641796 PMCID: PMC8506076 DOI: 10.1186/s12879-021-06732-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 09/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Some children hospitalized for severe pertussis need intensive care; moreover, some children die because of deterioration alone or in combination with other complications. The purpose of this study was to identify the mortality risk factors among hospitalized children with severe pertussis. METHODS This study evaluated the medical records of 144 hospitalized children with severe pertussis at the Guangzhou Women and Children's Medical Centre between January 2016 and December 2019. RESULTS The median age of patients was 2 months (IQR 1-4 months), with 90.3% of the patients aged < 6 months and 56.9% of the patients aged < 3 months. A total of 38 patients were admitted to intensive care unit (ICU), 13 patients died, and the mortality of severe pertussis was 34.2%, with patients younger than 6 weeks accounting for 76.9% of the deaths. On the multivariate analysis, the independent risk factors for death were WBC > 70.0 × 109/L (odds ratio [OR], 230.66; 95% confidence interval [CI], 5.16-10,319.09 P = 0.005) and pulmonary hypertension (PH) (OR 323.29; 95% CI 16.01-6529.42; P < 0.001). CONCLUSION Severe pertussis mainly occurred in children aged < 3 months. The mortality of severe pertussis was 34.2%, with patients younger than 6 weeks accounting for the majority of the deaths. We recommend the first dose of diphtheria-tetanus-pertussis (DTP) should be advanced to the age of 2 months or even 6 weeks. The presence of a WBC > 70.0 × 109/L and PH were the prognostic independent variables associated with death.
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Affiliation(s)
- Tingting Shi
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9, Jinsui Road, Zhujiang New City, Tianhe District, Guangzhou, 510120, Guangdong, China
| | - Ling Wang
- Department of Neonatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Shuling Du
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Huifeng Fan
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9, Jinsui Road, Zhujiang New City, Tianhe District, Guangzhou, 510120, Guangdong, China
| | - Minghua Yu
- Department of Cardiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Tao Ding
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Xuehua Xu
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Dongwei Zhang
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9, Jinsui Road, Zhujiang New City, Tianhe District, Guangzhou, 510120, Guangdong, China
| | - Li Huang
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Gen Lu
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9, Jinsui Road, Zhujiang New City, Tianhe District, Guangzhou, 510120, Guangdong, China.
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Heppe Montero M, Gil-Prieto R, Walter S, Aleixandre Blanquer F, Gil De Miguel Á. Burden of severe bronchiolitis in children up to 2 years of age in Spain from 2012 to 2017. Hum Vaccin Immunother 2021; 18:1883379. [PMID: 33653212 PMCID: PMC8920124 DOI: 10.1080/21645515.2021.1883379] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Bronchiolitis represents a heavy burden of disease in children under 2 years of age in our society due to the high infectivity of the Respiratory Syncytial Virus [RSV] and the vulnerability of the youngest children. The objective of this retrospective epidemiological study was to show the burden of severe bronchiolitis in Spain through population-based estimates of hospitalizations due to bronchiolitis in children up to 24 months old during a 6-year period (2012–2017). A total of 100,115 cases of bronchiolitis required hospitalization in Spain from 2012 to 2017. Most cases of bronchiolitis that required hospitalization were in infants under 3 months of age. The hospitalization rate for bronchiolitis for children under 1 year of age was 3,838.27 per 100,000 healthy children. During the 6-year study period, a total of 82 deaths due to bronchiolitis were reported among hospitalized infants. Among these deaths, more than 50% were in patients younger than 3 months of age. The annual average cost to the National Health Care System was €58 M, with a mean hospitalization cost of €3,512 per case.
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Affiliation(s)
- Marco Heppe Montero
- Medicine and Public Health Department, Universidad Rey Juan Carlos, Madrid, Spain.,Pediatrics Service, Hospital General Universitario de Elda, Alicante, Spain
| | - Ruth Gil-Prieto
- Medicine and Public Health Department, Universidad Rey Juan Carlos, Madrid, Spain
| | - Stefan Walter
- Medicine and Public Health Department, Universidad Rey Juan Carlos, Madrid, Spain
| | | | - Ángel Gil De Miguel
- Medicine and Public Health Department, Universidad Rey Juan Carlos, Madrid, Spain
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Tessier E, Campbell H, Ribeiro S, Andrews N, Stowe J, Nicholls M, Morgan J, Litt D, Fry NK, Amirthalingam G. Investigation of a pertussis outbreak and comparison of two acellular booster pertussis vaccines in a junior school in South East England, 2019. Euro Surveill 2021; 26:2000244. [PMID: 33769247 PMCID: PMC7995557 DOI: 10.2807/1560-7917.es.2021.26.12.2000244] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/03/2020] [Indexed: 11/20/2022] Open
Abstract
In March 2019, a pertussis outbreak occurred in children in a junior school (7-11 years) in England who had been offered pertussis-containing booster vaccine at 40 months of age. In a case-control investigation, we assessed the extent of transmission and any difference in protection afforded to those who had previously received a booster 3- or 5-component acellular pertussis vaccine (aP). We took oral fluid specimens from the students to determine IgG antibodies against pertussis toxin (anti-PT). Parents of students attending the school were sent a questionnaire on pertussis symptoms and vaccination status was retrieved from general practitioner records for all students. Of 381 students, 134 (35.2%) were classified as pertussis cases, 133 by demonstration of significant anti-PT IgG titres and one clinically. There was no significant difference in the risk of pertussis between students receiving 3-component (33.7%) or 5-component (32.3%) aP boosters. However, pertussis infection differed significantly in school year 4, with 22.9%, 50.0%, 23.7% and 38.1% pertussis cases in years 3, 4, 5 and 6, respectively. The proportion of students with incomplete vaccinations recorded was higher than the proportion of those not covered according to the national reported coverage, possibly contributing to sustained transmission within the school.
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Affiliation(s)
- Elise Tessier
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
| | - Helen Campbell
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
| | - Sonia Ribeiro
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
| | - Nick Andrews
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
| | - Julia Stowe
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
| | - Margot Nicholls
- Surrey and Sussex Health Protection Team (South East), Public Health England, Surrey, United Kingdom
| | - Jaime Morgan
- Surrey and Sussex Health Protection Team (South East), Public Health England, Surrey, United Kingdom
| | - David Litt
- Vaccine Preventable Bacteria Section, National Infection Service, Public Health England, London, United Kingdom
| | - Norman K Fry
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
- Vaccine Preventable Bacteria Section, National Infection Service, Public Health England, London, United Kingdom
| | - Gayatri Amirthalingam
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, United Kingdom
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11
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Gauld N, Martin S, Sinclair O, Petousis-Harris H, Dumble F, Grant CC. A Qualitative Study of Views and Experiences of Women and Health Care Professionals about Free Maternal Vaccinations Administered at Community Pharmacies. Vaccines (Basel) 2020; 8:E152. [PMID: 32235360 PMCID: PMC7349902 DOI: 10.3390/vaccines8020152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/11/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022] Open
Abstract
Background: A policy to extend funding of maternal pregnancy influenza and pertussis vaccinations to community pharmacies could address low pregnancy vaccine uptake. The policy has been implemented in one region in New Zealand. This study explored the views and experiences of women eligible for the vaccines and health care professionals regarding funded maternal vaccinations in pharmacy. Methods: Women in late pregnancy or with an infant, and midwives, pharmacists, and general practice staff were selected purposively and interviewed regarding maternal vaccinations and the new policy, including their awareness and views of the funded vaccinations in pharmacies, and how this policy worked in practice. Enablers and barriers to vaccination by pharmacists were explored. Interviews were transcribed and analysed using a framework approach. Results: Fifty-three interviews were conducted. Most women and health care professionals viewed funded maternal vaccinations in pharmacies positively with respect to increasing awareness and providing delivery options. Many women received messages from pharmacies. Most pharmacies used posters, leaflets and/or verbal explanation to pregnant women to raise awareness of the vaccinations. Not all pharmacies provided these vaccinations, and frontline staff could help to raise awareness. Conclusion: Funded maternal vaccinations in pharmacies are generally well accepted and provide an opportunity to increase uptake and prevent disease.
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Affiliation(s)
- Natalie Gauld
- Department of Paediatrics: Child and Youth Health, University of Auckland, 2 Park Rd, Auckland 1023, New Zealand;
| | | | | | - Helen Petousis-Harris
- Department of General Practice and Primary Health Care, University of Auckland, Auckland 1023, New Zealand;
| | | | - Cameron C. Grant
- Department of Paediatrics: Child and Youth Health, University of Auckland, 2 Park Rd, Auckland 1023, New Zealand;
- General Paediatrics, Starship Children’s Hospital, Auckland 1023, New Zealand
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12
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Jenkinson D. Pertussis (whooping cough) is common in teens and adults. BMJ 2019; 365:l1623. [PMID: 30967372 DOI: 10.1136/bmj.l1623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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