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Li X, Liu S, Yin P, Chen K. Enhanced Immune Responses by Virus-Mimetic Polymeric Nanostructures Against Infectious Diseases. Front Immunol 2022; 12:804416. [PMID: 35126367 PMCID: PMC8807518 DOI: 10.3389/fimmu.2021.804416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/29/2021] [Indexed: 12/21/2022] Open
Abstract
Intermittent outbreaks of global pandemic disease have spurred new sensors and medicines development for the prevention of disease spread. This perspective specifically covers recent advances, challenges, and future directions in virus-mimetic polymeric nanostructures and their application in biological medicines with a special emphasis on subunit vaccine development. With tailorable compositions and properties, polymers facilitate the ingenious design of various polymeric nanostructures. As one type of polymeric nanostructures, virus-mimetic polymeric nanostructures have been developed as an attractive platform for enhanced immune responses, since they combine the merits of polymer nanocores with the biomimetic characteristic of virus which displays multivalent epitopes on their surfaces. This perspective also provides an applicative approach to rationally design virus-mimetic polymeric platforms based on nanostructures that are self-assembled by using polymers as templates and the antigens and metal oxide clusters loaded on their surface to mimic viruses in size and surface antigenicity. Sub-200 nm virus-mimetic polymeric nanostructures are in a relatively lower level of endotoxins and can promote the antigens to elicit potent humoral and cellular immune responses against pathogenic bacteria. The promising development of virus-mimetic polymeric nanostructures will continue to protect human health from common pathogens and emerging infectious threats.
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Affiliation(s)
- Xinpei Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
- State Key Laboratory of Luminescent Materials and Devices & Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Shengqiu Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
- State Key Laboratory of Luminescent Materials and Devices & Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
- State Key Laboratory of Luminescent Materials and Devices & Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
| | - Kun Chen
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou, China
- State Key Laboratory of Luminescent Materials and Devices & Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, China
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202
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Mammen M, Narasimhan V, Kuntz R, Lewis-Hall F, Poul M, Schechter A. Health Product Manufacturers and Innovators COVID-19 Impact Assessment: Lessons Learned and Compelling Needs. NAM Perspect 2022; 2022:202201b. [PMID: 35402857 PMCID: PMC8970224 DOI: 10.31478/202201b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
United States health care spending consumes nearly a fifth of the GDP [1]. While, in many respects, the U.S. health care system is enviable and highly innovative, it is also characterized by elements of ineffectiveness, inefficiency, and inequity. These aspects, resulting from pre-existing vulnerabilities within the system and interactions between the various stakeholders, were acutely highlighted by the COVID-19 pandemic. As health product manufacturers and innovators (HPMI) took steps to mitigate the immediate crisis and simultaneously begin to develop a longer-term sustainable solution, six common themes arose as areas for transformational change: support for science, data sharing, supply chain resiliency, stockpiling, and surge capacity, regulatory and reimbursement clarity and flexibility, public- and private-sector coordination and communication, and minimizing substandard care offerings. Within these categories, the authors of this paper suggest policy priorities to increase the effectiveness, efficiency, and equity of the HPMI sector and writ large across the U.S. health care system. These priorities call for increased scientific funding to diversify the pipeline for research and development, strengthening the nation’s public health infrastructure, building and maintaining “ever warm” manufacturing capacity and related stockpiles, instituting efficient and effective regulatory and reimbursement frameworks that promote innovation and creativity, devising structures and processes that enable more efficient collaboration and more effective communication to the public, and implementing rewards that incentivize desired behaviors among stakeholders. This assessment draws from the collective experience of the authors to provide a perspective for the diagnostics, hospital supplies and equipment, medical devices, therapeutics, and vaccines segments. While the authors of this paper agree on a common set of key policies, sub-sector-specific nuances are important to consider when putting any action priority into effect. With thoughtful implementation, these policies will enable a quicker, more robust response to future pandemics and enhance the overall performance of the U.S. health care system.
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Bassoum O, Sougou NM, Ba MF, Anne M, Bocoum M, Dieye A, Sokhna C, Tal-Dia A. Vaccination against tuberculosis, polio and hepatitis B at birth in Podor health district, Northern Senegal: cross-sectional study of vaccination coverage and its associated factors. BMC Public Health 2022; 22:110. [PMID: 35033057 PMCID: PMC8761353 DOI: 10.1186/s12889-022-12535-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 01/04/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND In Senegal, studies focusing specifically on vaccination coverage with the Bacille de Calmette et Guérin (BCG) vaccine, the birth dose of oral polio vaccine (OPV zero dose) and the birth dose of hepatitis B (HepB-BD) vaccine are insufficient. This study aimed to highlight vaccination coverages with birth doses and factors associated with timely vaccination in Podor health district. METHODS A cross-sectional study was carried out from June 19 to 22, 2020. The study population consisted of children aged 12 to 23 months of which 832 were included. A stratified two-stage cluster survey was carried out. The sources of data were home-based records (HBR), health facility registries (HFR) and parental recalls. Timely vaccination refers to any vaccination that has taken place within 24 h after birth. Descriptive analyzes, the chi-square test and logistic regression were performed. RESULTS The crude vaccination coverages with BCG, OPV zero dose and HepB-BD were 95.2%, 88.3% and 88.1%, respectively. Vaccination coverages within 24 h after birth were estimated at 13.9%, 30% and 42.1%, respectively. The factors associated with timely HepB-BD are delivery in a health facility (AOR = 1.55; 95% CI = 1.02-2.40), access to television (AOR = 1.63; 95% CI = 1.16-2.29), weighing (AOR = 3.92; 95% CI = 1.97-8.53) and hospitalization of the newborn immediately after birth (AOR = 0.42; 95% CI = 0.28-0.62). CONCLUSION Timely administration of birth doses is a challenge in the Podor health district. The solutions would be improving geographic access to health facilities, involving community health workers, raising awareness and integrating health services.
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Affiliation(s)
- Oumar Bassoum
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal.
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal.
| | - Ndeye Mareme Sougou
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
| | - Mouhamadou Faly Ba
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
| | - Malick Anne
- Ministère de La Santé Et de L'Action Sociale, Dakar, Sénégal
| | - Mamoudou Bocoum
- Ministère de La Santé Et de L'Action Sociale, Dakar, Sénégal
| | | | - Cheikh Sokhna
- Institut de Recherche Pour Le Développement, Campus UCAD/IRD de Hann, Dakar, Sénégal
- Institut Hospitalo-Universitaire - Méditerranée Infection, Marseille, France
| | - Anta Tal-Dia
- Service de Médecine Préventive Et de Santé Publique, Faculté de Médecine, de Pharmacie Et d'Odontologie (FMPO), Université Cheikh Anta Diop (UCAD), Dakar, Sénégal
- Institut de Santé Et Développement, Université Cheikh Anta Diop, Dakar, Sénégal
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204
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Potential Application of Exosomes in Vaccine Development and Delivery. Pharm Res 2022; 39:2635-2671. [PMID: 35028802 PMCID: PMC8757927 DOI: 10.1007/s11095-021-03143-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/15/2021] [Indexed: 02/06/2023]
Abstract
Exosomes are cell-derived components composed of proteins, lipid, genetic information, cytokines, and growth factors. They play a vital role in immune modulation, cell-cell communication, and response to inflammation. Immune modulation has downstream effects on the regeneration of damaged tissue, promoting survival and repair of damaged resident cells, and promoting the tumor microenvironment via growth factors, antigens, and signaling molecules. On top of carrying biological messengers like mRNAs, miRNAs, fragmented DNA, disease antigens, and proteins, exosomes modulate internal cell environments that promote downstream cell signaling pathways to facilitate different disease progression and induce anti-tumoral effects. In this review, we have summarized how vaccines modulate our immune response in the context of cancer and infectious diseases and the potential of exosomes as vaccine delivery vehicles. Both pre-clinical and clinical studies show that exosomes play a decisive role in processes like angiogenesis, prognosis, tumor growth metastasis, stromal cell activation, intercellular communication, maintaining cellular and systematic homeostasis, and antigen-specific T- and B cell responses. This critical review summarizes the advancement of exosome based vaccine development and delivery, and this comprehensive review can be used as a valuable reference for the broader delivery science community.
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205
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Rajaonarifara E, Bonds MH, Miller AC, Ihantamalala FA, Cordier L, Razafinjato B, Rafenoarimalala FH, Finnegan KE, Rakotonanahary RJL, Cowley G, Ratsimbazafy B, Razafimamonjy F, Randriamanambintsoa M, Raza-Fanomezanjanahary EM, Randrianambinina A, Metcalf CJ, Roche B, Garchitorena A. Impact of health system strengthening on delivery strategies to improve child immunisation coverage and inequalities in rural Madagascar. BMJ Glob Health 2022; 7:bmjgh-2021-006824. [PMID: 35012969 PMCID: PMC8753401 DOI: 10.1136/bmjgh-2021-006824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/19/2021] [Indexed: 11/21/2022] Open
Abstract
Background To reach global immunisation goals, national programmes need to balance routine immunisation at health facilities with vaccination campaigns and other outreach activities (eg, vaccination weeks), which boost coverage at particular times and help reduce geographical inequalities. However, where routine immunisation is weak, an over-reliance on vaccination campaigns may lead to heterogeneous coverage. Here, we assessed the impact of a health system strengthening (HSS) intervention on the relative contribution of routine immunisation and outreach activities to reach immunisation goals in rural Madagascar. Methods We obtained data from health centres in Ifanadiana district on the monthly number of recommended vaccines (BCG, measles, diphtheria, tetanus and pertussis (DTP) and polio) delivered to children, during 2014–2018. We also analysed data from a district-representative cohort carried out every 2 years in over 1500 households in 2014–2018. We compared changes inside and outside the HSS catchment in the delivery of recommended vaccines, population-level vaccination coverage, geographical and economic inequalities in coverage, and timeliness of vaccination. The impact of HSS was quantified via mixed-effects logistic regressions. Results The HSS intervention was associated with a significant increase in immunisation rates (OR between 1.22 for measles and 1.49 for DTP), which diminished over time. Outreach activities were associated with a doubling in immunisation rates, but their effect was smaller in the HSS catchment. Analysis of cohort data revealed that HSS was associated with higher vaccination coverage (OR between 1.18 per year of HSS for measles and 1.43 for BCG), a reduction in economic inequality, and a higher proportion of timely vaccinations. Yet, the lower contribution of outreach activities in the HSS catchment was associated with persistent inequalities in geographical coverage, which prevented achieving international coverage targets. Conclusion Investment in stronger primary care systems can improve vaccination coverage, reduce inequalities and improve the timeliness of vaccination via increases in routine immunisations.
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Affiliation(s)
- Elinambinina Rajaonarifara
- Sciences & Ingénierie, Sorbonne Universite, Paris, France .,UMR 224 MIVEGEC, Univ. Montpellier-CNRS-IRD, Montpellier, France.,NGO PIVOT, Ranomafana, Madagascar
| | - Matthew H Bonds
- NGO PIVOT, Ranomafana, Madagascar.,Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Ann C Miller
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | | | - Karen E Finnegan
- NGO PIVOT, Ranomafana, Madagascar.,Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | | | | | | | | | - C Jessica Metcalf
- Dept of Ecology and Evol. Biology, Princeton University, Princeton, New Jersey, USA
| | - Benjamin Roche
- UMR 224 MIVEGEC, Univ. Montpellier-CNRS-IRD, Montpellier, France.,Universidad Nacional Autónoma de México, Coyoacan, Distrito Federal, Mexico
| | - Andres Garchitorena
- UMR 224 MIVEGEC, Univ. Montpellier-CNRS-IRD, Montpellier, France.,NGO PIVOT, Ranomafana, Madagascar
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206
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Sallam M, Al-Sanafi M, Sallam M. A Global Map of COVID-19 Vaccine Acceptance Rates per Country: An Updated Concise Narrative Review. J Multidiscip Healthc 2022; 15:21-45. [PMID: 35046661 PMCID: PMC8760993 DOI: 10.2147/jmdh.s347669] [Citation(s) in RCA: 135] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/17/2021] [Indexed: 01/09/2023] Open
Abstract
The delay or refusal of vaccination, which defines vaccine hesitancy, is a major challenge to successful control of COVID-19 epidemic. The huge number of publications addressing COVID-19 vaccine hesitancy necessitates periodic review to provide a concise summary of COVID-19 vaccine acceptance rates worldwide. In the current narrative review, data on COVID-19 vaccine acceptance rates were retrieved from surveys in 114 countries/territories. In East and Southern Africa (n = 9), the highest COVID-19 vaccine acceptance rate was reported in Ethiopia (92%), while the lowest rate was reported in Zimbabwe (50%). In West/Central Africa (n = 13), the highest rate was reported in Niger (93%), while the lowest rate was reported in Cameroon (15%). In Asia and the Pacific (n = 16), the highest rates were reported in Nepal and Vietnam (97%), while the lowest rate was reported in Hong Kong (42%). In Eastern Europe/Central Asia (n = 7), the highest rates were reported in Montenegro (69%) and Kazakhstan (64%), while the lowest rate was reported in Russia (30%). In Latin America and the Caribbean (n = 20), the highest rate was reported in Mexico (88%), while the lowest rate was reported in Haiti (43%). In the Middle East/North Africa (MENA, n = 22), the highest rate was reported in Tunisia (92%), while the lowest rate was reported in Iraq (13%). In Western/Central Europe and North America (n = 27), the highest rates were reported in Canada (91%) and Norway (89%), while the lowest rates were reported in Cyprus and Portugal (35%). COVID-19 vaccine acceptance rates ≥60% were seen in 72/114 countries/territories, compared to 42 countries/territories with rates between 13% and 59%. The phenomenon of COVID-19 vaccine hesitancy appeared more pronounced in the MENA, Europe and Central Asia, and Western/Central Africa. More studies are recommended in Africa, Eastern Europe and Central Asia to address intentions of the general public to get COVID-19 vaccination.
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Affiliation(s)
- Malik Sallam
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Amman, Jordan
- Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Amman, Jordan
- Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Mariam Al-Sanafi
- Department of Pharmacy Practice, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
- Department of Pharmaceutical Sciences, Public Authority for Applied Education and Training, College of Health Sciences, Safat, Kuwait
| | - Mohammed Sallam
- Department of Pharmacy, Mediclinic Welcare Hospital, Mediclinic Middle East, Dubai, United Arab Emirates
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207
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Ahmad M, Akande A, Majid U. Health care provider trust in vaccination: a systematic review and qualitative meta-synthesis. Eur J Public Health 2022; 32:207-213. [PMID: 35021201 PMCID: PMC9090277 DOI: 10.1093/eurpub/ckab209] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Vaccine hesitancy is a growing issue globally amongst various populations, including health care providers. This study explores the factors that influence vaccine hesitancy amongst nurses and physicians. METHODS We performed a qualitative meta-synthesis of 22 qualitative and mixed-method studies exploring the factors that may contribute to vaccine hesitancy amongst nurses and physicians. We included all articles that mentioned any aspect of trust concerning vaccination, including how trust may influence or contribute to vaccine hesitancy in nurses and physicians. RESULTS Our findings revealed that vaccine hesitancy amongst nurses stemmed predominantly from two factors: distrust in health authorities and their employers, and distrust in vaccine efficacy and safety. Both nurses and physicians had a precarious relationship with health authorities. Nurses felt that their employers and health authorities did not prioritize their health over patients' health, provided inaccurate and inconsistent vaccine information, and were mistrustful of pharmaceutical company motives. Like nurses, physicians were also skeptical of pharmaceutical company motives when it came to vaccination. Additionally, physicians also held doubts regarding vaccine efficacy and safety. CONCLUSIONS The relationship health care providers or their patients have with health authorities and other providers regarding vaccination serves as unsystematic clinical experiences that may bolster vaccine hesitancy. Providing accurate and tangible information to emphasize the safety and efficacy of vaccines to health care providers may help address their specific concerns that may ultimately increase vaccine uptake.
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Affiliation(s)
- Mobeen Ahmad
- Department of Internal Medicine, Abington Memorial Hospital/Abington-Jefferson Health, Abington, PA, USA
| | - Adebisi Akande
- Department of Biological Sciences, University of Toronto, Toronto, ON, Canada
| | - Umair Majid
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
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208
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Recombinant hepatitis B vaccine uptake and multiple sclerosis risk: A marginal structural modeling approach. Mult Scler Relat Disord 2022; 58:103487. [PMID: 35007824 DOI: 10.1016/j.msard.2022.103487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/17/2021] [Accepted: 01/01/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND There has been an ongoing debate regarding the association between uptake of recombinant vaccine against hepatitis B virus (HBV) and multiple sclerosis (MS) risk. This case-control study tested the hypothesis whether recombinant HBV vaccination status is causally associated with MS risk using targeted maximum likelihood estimation (TMLE) technique. METHODS Confirmed 110 MS cases and age (± 5 years), sex and nativity matched (1:1) 110 controls were enrolled. Data were collected on sociodemographics, environmental factors, history of vaccinations and past morbidities through face-to-face interview both from cases and controls. To estimate the causal parameters including marginal odds ratio (OR), causal relative risk (RR), causal risk difference (RD) and their 95% confidence intervals (CIs), we implemented case-control-weighted TMLE for a matched design that uses data-adaptive flexible stacked ensemble-based machine learning system namely Super Learner. Additionally, population preventable fraction (PPF) of MS risk was computed. RESULTS This study demonstrated a significant nonspecific protective effect of HBV vaccination against MS risk (marginal OR 0.44; 95% CI: 0.19-0.68; p = 0.006; causal RR 0.64, 95% CI: 0.46-0.89; p = 0.004). The significant causal RD showed that among the vaccinated 19% fewer MS cases occurred owing to their HBV vaccination (causal RD -0.19; 95% CI: -0.32 - -0.06; p = 0.014). In the source population, vaccination against HBV led to 17.4% reduced MS risk (PPF = 17.4%; 95% CI: 3.8%, 36.3%). CONCLUSION The results suggest a significant nonspecific protective effect of recombinant HBV vaccine against MS risk. Future studies may contemplate to confirm these results.
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209
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Eze P, Aniebo CL, Agu UJ, Agu SA, Acharya Y. Validity of maternal recall for estimating childhood vaccination coverage - Evidence from Nigeria. Vaccine 2022; 40:28-36. [PMID: 34863616 DOI: 10.1016/j.vaccine.2021.11.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/20/2021] [Accepted: 11/22/2021] [Indexed: 01/26/2023]
Abstract
BACKGROUND Vaccination coverage surveys in low- and middle-income countries typically estimate vaccination coverage using data from vaccination cards, parental recall, or a combination of the two. However, these surveys are often complicated by the pervasive absence of vaccination cards, forcing researchers to rely on parental recall. We assessed the validity of mothers' recall against home-based vaccination cards using data from a community-based household survey in Nigeria. METHODS A cross-sectional survey of 1,254 mothers of children aged 12-23 months was performed in Enugu State, Nigeria in July 2020. Data on vaccination status for BCG, OPV, DPT, Measles, Yellow fever, and Vitamin A supplement were collected using two data sources: home-based vaccination cards and mothers' recall. We evaluated the level of agreement between the two data sources; estimated the sensitivity and specificity of mothers' recalls; and computed multivariable regression models to identify socio-demographic factors associated with mothers' recall bias. RESULTS Out of 1,254 mothers interviewed, 578 (46.1%) mothers with vaccination cards were included in this analysis. Vaccination coverage levels were generally similar across data sources, though recall-based data generally underestimated the coverage. The level of agreement between the two data sources was high (≥91.0% for all vaccine types) with recall bias due to under-reporting generally higher than recall bias due to over-reporting. The sensitivity of parental recalls was high for all vaccine types, while the specificity was low across vaccine types. Across all vaccines, mothers recall bias was significantly associated with the rural residence and not receiving postnatal care. CONCLUSION In the absence of vaccination cards, mothers' recall of their children' vaccination status for BCG, OPV, DPT, Measles, Yellow fever and Vitamin A is a valid instrument for estimating childhood vaccination coverage in this setting in Nigeria. However, additional research is needed to confirm these findings at higher sub-national and national levels.
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Affiliation(s)
- Paul Eze
- Department of Health Policy and Administration, Penn State University, University Park, PA 16802, USA.
| | - Chioma Lynda Aniebo
- Department of Paediatrics, Enugu State University Teaching Hospital, Parklane, Enugu, Nigeria
| | - Ujunwa Justina Agu
- Department of Paediatrics, Enugu State University Teaching Hospital, Parklane, Enugu, Nigeria
| | - Sergius Alex Agu
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
| | - Yubraj Acharya
- Department of Health Policy and Administration, Penn State University, University Park, PA 16802, USA.
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210
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Ghamri RA, Othman SS, Alhiniah MH, Alelyani RH, Badawi AM, Alshahrani AA. Acceptance of COVID-19 Vaccine and Associated Factors Among Pregnant Women in Saudi Arabia. Patient Prefer Adherence 2022; 16:861-873. [PMID: 35399252 PMCID: PMC8986189 DOI: 10.2147/ppa.s357653] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 03/04/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Coronavirus disease 19 (COVID-19) vaccination has been established as preventing severe and mortal COVID-19. Vaccination is critical strategy in controlling the COVID-19 pandemic, to restrict infections and reduce disease severity. Vaccination coverage will be more extensive if we can better identify vaccination barriers in the population, especially among vulnerable groups, of which one is pregnant women. The aim of this study was to determine the level of acceptance of COVID-19 vaccination and detect the factors that influence vaccine acceptance among pregnant women in Saudi Arabia. METHODS This was a cross-sectional, web-based study conducted in Western, Eastern, North, South, and Central Regions in Saudi Arabia between July and September 2021 among pregnant women, using multi-stage sampling. All pregnant women above 18 years were invited to participate in the study. Pregnant under 18 years of age and those with a contraindication to receiving COVID-19 vaccination were excluded. Binomial logistic regression (univariate and multivariate) was used to identify the influencing factors on vaccination acceptance. RESULTS Among the 5307 pregnant women, the acceptance level of COVID-19 vaccine was 68%. In the multivariate regression model analysis, the most common predictors of acceptance were living in North Region (P = 0.001, OR = 1.9), living in South Region (P = 0.000, OR = 3.06), and living in Central Region (P = 0.035, OR = 1.42) in comparison to living in Western Region. Gestational week (P = 0.018, OR=0.98), income more than 8000 SR (P = 0.000, OR = 0.51), education level (primary, secondary, and university; P = 0.002, 0.008, and 0.010, respectively), having had gestational diabetes mellitus (P = 0.013, OR = 1.86), being vaccinated with influenza vaccine during present pregnancy (P = 0.000, OR = 4.55, OR = 1.81), being vaccinated with tetanus vaccine during present pregnancy (P = 0.039), and believing that the COVİD-19 vaccine could harm their baby (P = 0.000, OR = 0.12). CONCLUSION Our study reported high acceptance of COVID-19 vaccination. The major two reasons for refusal were concerns about a lack of data on COVID-19 vaccination safety and the possibility of harming the fetus. Continued public health efforts, such as educational television programs and awareness campaigns about the safety of the COVID-19 vaccine for pregnant women, are required to raise awareness. More studies of COVID-19 vaccine safety in pregnant women would assist in overcoming these obstacles and encourage pregnant women to be vaccinated.
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Affiliation(s)
- Ranya A Ghamri
- Department of Family Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
- Correspondence: Ranya A Ghamri, Email
| | - Sahar S Othman
- Department of Family Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mudhawi H Alhiniah
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Rakan H Alelyani
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Atheer M Badawi
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Asma A Alshahrani
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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211
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Durach F, Buturoiu R, Craiu D, Cazacu C, Bargaoanu A. Crisis of confidence in vaccination and the role of social media. Eur J Paediatr Neurol 2022; 36:84-92. [PMID: 34933130 DOI: 10.1016/j.ejpn.2021.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 12/18/2022]
Abstract
INTRODUCTION The aim of this paper is to review the current situation of vaccine hesitancy, with emphasis on children with neurological disorders, and to present the role social media plays in this situation. METHODS A literature review using the following search words was performed: vaccine∗ OR immune∗ AND hesitancy OR confidence AND social media. RESULTS The search retrieved 277 results; 17 duplicates and 234 irrelevant articles were excluded. 43 articles were fully analyzed. CONCLUSIONS An increasing number of parents are becoming vaccine hesitant. Their motives are complex and nuanced and involve factors related to vaccine safety and efficiency, perceived personal risks and benefits, socio-demographic and psychological characteristics. Attitudes toward vaccination differ in adolescents from their parents. In children with neurological disorders, factors involved in vaccination decision included physicians' knowledge of neurological diseases and parents' concerns that vaccination would exacerbate the chronic disorder. Unfortunately, the current pandemic is associated with an increase in vaccine hesitancy and brought forward unique determinants. The social media platforms can be a tool for the anti-vaccine movement to spread misinformation, but it can also be valued as a way for promoting health and pro-vaccine information.
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Affiliation(s)
- Flavia Durach
- National University of Political Studies and Public Administration, Bulevardul Expozitiei 30A, postal code 012244, Bucharest/S1, Romania.
| | - Raluca Buturoiu
- National University of Political Studies and Public Administration, Bulevardul Expozitiei 30A, postal code 012244, Bucharest/S1, Romania.
| | - Dana Craiu
- Carol Davila University of Medicine and Pharmacy, Faculty of Medicine, Department of Neurosciences, Pediatric Neurology Discipline II, Strada Dionisie Lupu No. 37, postal code: 020021, Bucharest/S2, Romania; Alexandru Obregia Clinical Hospital, Pediatric Neurology Clinic, Center of Expertise for Rare Disorders in Pediatric Neurology, EpiCARE member, Sos. Berceni 10, Bucharest/S4, Romania.
| | - Cristina Cazacu
- Alexandru Obregia Clinical Hospital, Pediatric Neurology Clinic, Center of Expertise for Rare Disorders in Pediatric Neurology, EpiCARE member, Sos. Berceni 10, Bucharest/S4, Romania.
| | - Alina Bargaoanu
- National University of Political Studies and Public Administration, Bulevardul Expozitiei 30A, postal code 012244, Bucharest/S1, Romania.
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Affiliation(s)
- Emmett T Cunningham
- Department of Ophthalmology, California Pacific Medical Center, San Francisco, California
- The Department of Ophthalmology, Stanford University School of Medicine, Stanford, California
- The Francis I. Proctor Foundation, UCSF School of Medicine, San Francisco, California
| | - Ramana S Moorthy
- Associated Vitreoretinal and Uveitis Consultants, Indianapolis, Indiana
- Department of Ophthalmology, Indiana University Medical Center, Indianapolis, Indiana
- St. Vincent Hospital and Health Services, Indianapolis, Indiana
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213
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Tahir AI, Ramadhan DS, Piro SS, Abdullah RY, Taha AA, Radha RH. COVID-19 vaccine acceptance, hesitancy and refusal among Iraqi Kurdish population. Int J Health Sci (Qassim) 2022; 16:10-16. [PMID: 35024029 PMCID: PMC8721214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Vaccination is one of the most significant public health achievements of humanity. However, a significant portion of the population remains hesitant about vaccine safety, efficacy, and necessity. This study aimed to determine COVID-19 vaccination intention and factors affecting their decision among the general population in the Kurdistan region, Iraq. METHODS A cross-sectional survey was conducted online during (April-May 2021), and a total of 1171 participants provided complete and valid answers were enrolled. Data collection was done through online questionnaire through Google Forms. We used binary regression analysis to identify factors associated with COVID-19 vaccination intention. RESULTS The majority (53.6%) of the participants were female. Willingness to accept COVID-19 vaccine was low (33 %) of the participants. We found that vaccine hesitancy/resistance was high which was evident for (32%) and (34.9%) of surveyed populations, respectively. Vaccination intention may associate with age, education, and occupation. Furthermore, several factors were associated with hesitancy/resistance: Adverse effects of the vaccine and loss of family members during the pandemic. CONCLUSIONS More than half of the study participants refused or were hesitant to have the COVID-19 vaccine, so that Governments and health authorities should improve communication and increase trust.
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Affiliation(s)
- Arazoo Issa Tahir
- Department of Nursing, Bardarash Technical Institute, Duhok Polytechnic University, Duhok Governorate, Kurdistan Region, Iraq
| | - Dilkhosh Shamal Ramadhan
- Department of Nursing, College of Nursing, University of Duhok, Duhok Governorate, Kurdistan Region, Iraq
| | - Safiya Sabri Piro
- Department of Maternity and Community Health Nursing, College of Nursing, University of Duhok, Duhok Governorate, Kurdistan Region, Iraq
| | - Rebar Yahya Abdullah
- Department of Nursing, College of Nursing, University of Duhok, Duhok Governorate, Kurdistan Region, Iraq
| | - Ari Ahmed Taha
- Cardiac Center, Erbil, Erbil Governorate, Kurdistan Region, Iraq
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214
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Rabiu M, Iyaniwura SA. Assessing the potential impact of immunity waning on the dynamics of COVID-19 in South Africa: an endemic model of COVID-19. NONLINEAR DYNAMICS 2022; 109:203-223. [PMID: 35095199 PMCID: PMC8788409 DOI: 10.1007/s11071-022-07225-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/09/2022] [Indexed: 05/05/2023]
Abstract
We developed an endemic model of COVID-19 to assess the impact of vaccination and immunity waning on the dynamics of the disease. Our model exhibits the phenomenon of backward bifurcation and bi-stability, where a stable disease-free equilibrium coexists with a stable endemic equilibrium. The epidemiological implication of this is that the control reproduction number being less than unity is no longer sufficient to guarantee disease eradication. We showed that this phenomenon could be eliminated by either increasing the vaccine efficacy or by reducing the disease transmission rate (adhering to non-pharmaceutical interventions). Furthermore, we numerically investigated the impacts of vaccination and waning of both vaccine-induced immunity and post-recovery immunity on the disease dynamics. Our simulation results show that the waning of vaccine-induced immunity has more effect on the disease dynamics relative to post-recovery immunity waning and suggests that more emphasis should be on reducing the waning of vaccine-induced immunity to eradicate COVID-19.
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Affiliation(s)
- Musa Rabiu
- School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Durban, South Africa
| | - Sarafa A Iyaniwura
- Department of Mathematics and Institute of Applied Mathematics, University of British Columbia, Vancouver, BC Canada
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215
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A Blockchain-Based Approach for COVID-19 Vaccine Lifecycle. ENTERP INF SYST-UK 2022. [DOI: 10.1007/978-3-031-08965-7_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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216
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Hossain MK, Hassanzadeganroudsari M, Feehan J, Apostolopoulos V. The race for a COVID-19 vaccine: where are we up to? Expert Rev Vaccines 2021; 21:355-376. [PMID: 34937492 DOI: 10.1080/14760584.2022.2021074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION A novel strain of coronavirus, SARS-CoV-2, has triggered a global pandemic of coronavirus disease (COVID-19) in late 2019. In January 2020, the WHO declared this pandemic a public health emergency. This pandemic has already caused over 5.3 million deaths from more than 272 million infections. The development of a successful vaccine is an urgent global priority to halt the spread of SARS-CoV-2 and prevent further fatalities. Researchers are fast-tracking this process, and there have already been significant developments in preclinical and clinical phases in a relatively short period of time. Some vaccines have been approved either for emergency use or mass application in recent months. AREAS COVERED Herein, we provide a general understanding of the fast-tracked clinical trial procedures and highlight recent successes in preclinical and clinical trials to generate a clearer picture of the progress of COVID-19 vaccine development. EXPERT OPINION A good number of vaccines have been rolled out within a short period a feat unprecedented in medical history. However, the emergence of new variants over time has appeared as a new threat, and the number of infections and casualties is still on the rise and this is going to be an ongoing battle.
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Affiliation(s)
- Md Kamal Hossain
- Institute for Health and Sport, Victoria University, Melbourne, Australia
| | | | - Jack Feehan
- Institute for Health and Sport, Victoria University, Melbourne, Australia.,Department of Medicine The University of Melbourne, Melbourne, Australia
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Gllareva BB, Humolli I, Rudhani I, Jakupi X, Rexhepi J, Metaj T, Kafexholli A, Sopi V. A National Cross-Sectional Study from the Republic of Kosovo on Lot Quality Assurance Sampling (LQAS) to Evaluate the Vaccination Status of Children Between 12 and 24 Months of Age During 2018 to 2020. Med Sci Monit Basic Res 2021; 27:e934194. [PMID: 34955529 PMCID: PMC8719424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND In the Republic of Kosovo, full vaccination status in children under age 2 years includes: 1 dose of Bacillus Calmette-Guerin (BCG) hepatitis B virus (HBV) vaccine; 3 doses of diphtheria, tetanus, pertussis, hepatitis B, polio, and Haemophilus influenzae type b (DTaP-HB-IPV-Hib) vaccine; 3 doses of inactivated polio vaccine (IPV); and 1 dose of measles, mumps, and rubella (MMR) vaccine. Lot quality assurance sampling (LQAS) is a method used to assess the performance of health quality indicators. MATERIAL AND METHODS A national cross-sectional study with children aged between 12 and 24 months from Kosovo was performed between 2018 and 2020. The vaccination status of children was assessed with lot quality assurance sampling (LQAS) using randomized samples. RESULTS Among 430 children, more than 90% had completed the full immunization schedule. Delays in children's immunizations were observed. Most vaccinations showed short delays of less than 1 month, followed by delays of up to 3 months. The main reason for vaccination delay was the COVID-19 pandemic, following by child's illness at the scheduled time of vaccination or the parents were too busy to take the child to the vaccination site. Meanwhile, child age was the only parameter that showed difference among non-vaccinated and fully vaccinated (P<0.001). CONCLUSIONS LQAS analysis showed that between 2018 and 2020 lack of full immunization was due to delay caused by the parent not taking the child to the vaccination site, which may be prevented by improving information given to parents and the use of vaccination reminders.
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Affiliation(s)
- Bashkim Bejtë Gllareva
- Department fo Family Medicine, Social Medicine and Occupational Medicine, University of Prishtina, Faculty of Medicine, Prishtina, Kosovo
| | - Isme Humolli
- Department of Epidemiology, University of Prishtina, Faculty of Medicine, Prishtina, Kosovo
| | - Ibrahim Rudhani
- Department of Internal Medicine, University of Prishtina, Faculty of Medicine, Prishtina, Kosovo
| | - Xhevat Jakupi
- Department of Microbiology, University of Prishtina, Faculty of Medicine, Prishtina, Kosovo
| | - Jon Rexhepi
- Department of Biochemistry, Clinical Hospital Service University of Kosovo (SHSKUK), Prishtina, Kosovo
| | - Tringa Metaj
- Department of Anesthesiology and Reanimation , Clinical Hospital Service University of Kosovo (SHSKUK), Prishtina, Kosovo
| | - Ardita Kafexholli
- Department of Family Medicine, Main Center of Family Medicine (QKMF-Prishtine), Prishtina, Kosovo
| | - Vlora Sopi
- Department of Pediatrics, Clinical Hospital Service University of Kosovo (SHSKUK), Prishtina, Kosovo
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218
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Marchini T, Abogunloko T, Wolf D. Modulating Autoimmunity against LDL: Development of a Vaccine against Atherosclerosis. Hamostaseologie 2021; 41:447-457. [PMID: 34942658 PMCID: PMC8702296 DOI: 10.1055/a-1661-1908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AbstractAtherosclerosis is a chronic inflammatory disease of the arterial wall that leads to the build-up of occluding atherosclerotic plaques. Its clinical sequelae, myocardial infarction and stroke, represent the most frequent causes of death worldwide. Atherosclerosis is a multifactorial pathology that involves traditional risk factors and chronic low-grade inflammation in the atherosclerotic plaque and systemically. This process is accompanied by a strong autoimmune response that involves autoreactive T cells in lymph nodes and atherosclerotic plaques, as well as autoantibodies that recognize low-density lipoprotein (LDL) and its main protein component apolipoprotein B (ApoB). In the past 60 years, numerous preclinical observations have suggested that immunomodulatory vaccination with LDL, ApoB, or its peptides has the potential to specifically dampen autoimmunity, enhance tolerance to atherosclerosis-specific antigens, and protect from experimental atherosclerosis in mouse models. Here, we summarize and discuss mechanisms, challenges, and therapeutic opportunities of immunomodulatory vaccination and other strategies to enhance protective immunity in atherosclerosis.
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Affiliation(s)
- Timoteo Marchini
- Cardiology and Angiology I, University Heart Center and Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Facultad de Farmacia y Bioquímica, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Germany
| | - Tijani Abogunloko
- Cardiology and Angiology I, University Heart Center and Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Germany
| | - Dennis Wolf
- Cardiology and Angiology I, University Heart Center and Medical Center – University of Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
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219
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Kavitha K, Ragunathan L, Elantheriyan P, Gopalakrishnan K, Gopala KA, Balamurugan ID, Navya RR, Marcella SS, Venkatachalam GK. The burden of mycobacteria species among children from postvaccination abscess in Southern India. Int J Mycobacteriol 2021; 10:358-363. [PMID: 34916452 DOI: 10.4103/ijmy.ijmy_190_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background From the time vaccines were introduced, their impact has been beyond measurable. Mycobacteria are pathogens increasingly isolated from postvaccination abscess. Identification of these pathogens plays a very crucial role in the management of these babies. We aimed to determine Mycobacterial spp occurrence from vaccination abscess, draw local antibiogram, and guide management of babies with vaccination abscess. Methods Babies with postvaccination abscess from 2016 to 2020 were included. Pus collected during incision and drainage was processed as per the standard guidelines. Mycobacterium isolates were identified by conventional methods, and all samples were confirmed by polymerase chain reaction. All babies underwent incision and drainage, and all were started with amoxicillin and clavulanic acid and changed later as per the sensitivity report. Results Mycobacterium abscessus was isolated from 17% (12) pus samples from 71 postdiphtheria pertussis and tetanus vaccination, and Mycobacterium bovis was isolated from 83.3% (10) babies with post-Bacillus Calmette-Guérin vaccination. The mean interval between injection and abscess formation was 32.75 days in case of M. abscessus, whereas it was 50.4 days in case of M. bovis. All the M. abscessus were sensitive to linezolid, amikacin, and clarithromycin, whereas no treatment except incision and drainage was required for M. bovis. Conclusion There is an increased incidence of Mycobacterial spp infection in postvaccination abscess. All babies with M abscessus responded well with combination antibiotic therapy plus drainage of abscesses, whereas M. bovis was treated by incision and drainage, and no further antibiotics were given.
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Affiliation(s)
- Kannaiyan Kavitha
- Department of Microbiology, Aarupadai Veedu Medical College and Hospital, Puducherry, India
| | - Latha Ragunathan
- Department of Microbiology, Aarupadai Veedu Medical College and Hospital, Puducherry, India
| | | | - Kuppusamy Gopalakrishnan
- Department of Anesthesiology, Sri Lakshmi Narayana Medical College and Hospital, Puducherry, India
| | | | | | - Ragunadha Reddy Navya
- Department of Microbiology, Aarupadai Veedu Medical College and Hospital, Puducherry, India
| | - Sherin Samuel Marcella
- Department of Microbiology, Aarupadai Veedu Medical College and Hospital, Puducherry, India
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220
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Nitika, Wei J, Hui AM. The Development of mRNA Vaccines for Infectious Diseases: Recent Updates. Infect Drug Resist 2021; 14:5271-5285. [PMID: 34916811 PMCID: PMC8668227 DOI: 10.2147/idr.s341694] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/25/2021] [Indexed: 12/27/2022] Open
Abstract
mRNA-based technologies have been of interest for the past few years to be used for therapeutics. Several mRNA vaccines for various diseases have been in preclinical and clinical stages. With the outbreak of the COVID-19 pandemic, the emergence of mRNA vaccines has transformed modern science. Recently, two major mRNA vaccines have been developed and approved by global health authorities for administration on the general population for protection against SARS-CoV-2. They have been proven to be successful in conferring protection against the ongoing SARS-CoV-2 and its emerging variants. This will draw attention to various mRNA vaccines against infectious diseases that are in the early stages of clinical trials. mRNA vaccines offer several advantages ranging from rapid design, generation, manufacturing, and administration and have strong potential to be used against various diseases in the future. Here, we summarize the mRNA-based vaccines in development against various infectious diseases.
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Affiliation(s)
- Nitika
- Fosun Pharma USA Inc., Boston, MA, USA.,Shanghai Fosun Pharmaceutical Industrial Development, Co., Ltd., Shanghai, People's Republic of China
| | - Jiao Wei
- Fosun Pharma USA Inc., Boston, MA, USA.,Shanghai Fosun Pharmaceutical Industrial Development, Co., Ltd., Shanghai, People's Republic of China
| | - Ai-Min Hui
- Fosun Pharma USA Inc., Boston, MA, USA.,Shanghai Fosun Pharmaceutical Industrial Development, Co., Ltd., Shanghai, People's Republic of China
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221
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Murewanhema G, Mukwenha S, Dzinamarira T, Mukandavire Z, Cuadros D, Madziva R, Chingombe I, Mapingure M, Herrera H, Musuka G. Optimising COVID-19 Vaccination Policy to Mitigate SARS-CoV-2 Transmission within Schools in Zimbabwe. Vaccines (Basel) 2021; 9:1481. [PMID: 34960227 PMCID: PMC8709186 DOI: 10.3390/vaccines9121481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/30/2022] Open
Abstract
The COVID-19 pandemic has disrupted the learning of millions of children across the world. Since March 2020 when the first cases of COVID-19 were reported in Zimbabwe, the country, like many others, has gone through periods of closing and re-opening of schools as part of the national COVID-19 control and mitigation measures. Schools promote the social, mental, physical, and moral development of children. With this viewpoint, the authors argue that schools should not be closed to provide a measured and efficient response to the threats posed by the COVID-19 epidemic. Rather, infection prevention and control strategies, including vaccination of learners and teachers, and surveillance in schools should be heightened. The use of multiple prevention strategies discussed in this viewpoint has shown that when outbreaks in school settings are adequately managed, the transmission usually is low. The information presented here suggests that schools should remain open due to the preponderance of evidence indicating the overriding positive impacts of this policy on the health, development, and wellbeing of children.
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Affiliation(s)
- Grant Murewanhema
- Unit of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe;
| | - Solomon Mukwenha
- ICAP at Columbia University, Harare, Zimbabwe; (S.M.); (I.C.); (M.M.); (G.M.)
| | - Tafadzwa Dzinamarira
- ICAP at Columbia University, Harare, Zimbabwe; (S.M.); (I.C.); (M.M.); (G.M.)
- School of Health Systems & Public Health, University of Pretoria, Pretoria 0002, South Africa
| | - Zindoga Mukandavire
- Center for Data Science and Artificial Intelligence, Emirates Aviation University, Dubai P.O. Box 53044, United Arab Emirates;
| | - Diego Cuadros
- Department of Geography and Geographic Information Science, University of Cincinnati, Cincinnati, OH 45221, USA;
| | - Roda Madziva
- School of Sociology and Social Policy, University of Nottingham, Nottingham NG7 2RD, UK;
| | - Innocent Chingombe
- ICAP at Columbia University, Harare, Zimbabwe; (S.M.); (I.C.); (M.M.); (G.M.)
| | | | - Helena Herrera
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth PO1 2UP, UK;
| | - Godfrey Musuka
- ICAP at Columbia University, Harare, Zimbabwe; (S.M.); (I.C.); (M.M.); (G.M.)
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222
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Mimicking Native Display of CD0873 on Liposomes Augments Its Potency as an Oral Vaccine against Clostridioides difficile. Vaccines (Basel) 2021; 9:vaccines9121453. [PMID: 34960199 PMCID: PMC8708880 DOI: 10.3390/vaccines9121453] [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: 10/29/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022] Open
Abstract
Mucosal vaccination aims to prevent infection mainly by inducing secretory IgA (sIgA) antibody, which neutralises pathogens and enterotoxins by blocking their attachment to epithelial cells. We previously demonstrated that encapsulated protein antigen CD0873 given orally to hamsters induces neutralising antibodies locally as well as systemically, affording partial protection against Clostridioides difficile infection. The aim of this study was to determine whether displaying CD0873 on liposomes, mimicking native presentation, would drive a stronger antibody response. The recombinant form we previously tested resembles the naturally cleaved lipoprotein commencing with a cysteine but lacking lipid modification. A synthetic lipid (DHPPA-Mal) was designed for conjugation of this protein via its N-terminal cysteine to the maleimide headgroup. DHPPA-Mal was first formulated with liposomes to produce MalLipo; then, CD0873 was conjugated to headgroups protruding from the outer envelope to generate CD0873-MalLipo. The immunogenicity of CD0873-MalLipo was compared to CD0873 in hamsters. Intestinal sIgA and CD0873-specific serum IgG were induced in all vaccinated animals; however, neutralising activity was greatest for the CD0873-MalLipo group. Our data hold great promise for development of a novel oral vaccine platform driving intestinal and systemic immune responses.
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223
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Chowdhury S, Toth I, Stephenson RJ. Dendrimers in vaccine delivery: Recent progress and advances. Biomaterials 2021; 280:121303. [PMID: 34871877 DOI: 10.1016/j.biomaterials.2021.121303] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 11/08/2021] [Accepted: 11/29/2021] [Indexed: 12/19/2022]
Abstract
Dendrimers are well-defined, highly branched, multivalent and monodisperse molecules which host a range of attractive, yet functional, chemical and biological characteristics. A dendrimers accessible surface groups enable coupling to different functional moieties (e.g., antibodies, peptides, proteins, etc), which is further assisted by the dendrimers tailored size and surface charge. This adaptability allows for the preparation of molecularly precise vaccines with highly specific and predictable properties, and in conjunction with a dendrimers immune stimulating (adjuvanting) property, makes dendrimers attractive substrates for biomedical applications, including vaccines. This review highlights the structural and synthetic evolution of dendrimers throughout history, detailing the dendrimers role as both an adjuvant and carrier system for vaccine antigens, in addition to reviewing the development of commercially available vaccines for use in humans.
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Affiliation(s)
- Silvia Chowdhury
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; School of Pharmacy, The University of Queensland, Brisbane, QLD 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072 Australia.
| | - Rachel J Stephenson
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
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224
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Chung YH, Church D, Koellhoffer EC, Osota E, Shukla S, Rybicki EP, Pokorski JK, Steinmetz NF. Integrating plant molecular farming and materials research for next-generation vaccines. NATURE REVIEWS. MATERIALS 2021; 7:372-388. [PMID: 34900343 DOI: 10.1038/s41578-021-00399-395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Accepted: 10/18/2021] [Indexed: 05/28/2023]
Abstract
Biologics - medications derived from a biological source - are increasingly used as pharmaceuticals, for example, as vaccines. Biologics are usually produced in bacterial, mammalian or insect cells. Alternatively, plant molecular farming, that is, the manufacture of biologics in plant cells, transgenic plants and algae, offers a cheaper and easily adaptable strategy for the production of biologics, in particular, in low-resource settings. In this Review, we discuss current vaccination challenges, such as cold chain requirements, and highlight how plant molecular farming in combination with advanced materials can be applied to address these challenges. The production of plant viruses and virus-based nanotechnologies in plants enables low-cost and regional fabrication of thermostable vaccines. We also highlight key new vaccine delivery technologies, including microneedle patches and material platforms for intranasal and oral delivery. Finally, we provide an outlook of future possibilities for plant molecular farming of next-generation vaccines and biologics.
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Affiliation(s)
- Young Hun Chung
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
| | - Derek Church
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward C Koellhoffer
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
| | - Elizabeth Osota
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Biomedical Science Program, University of California, San Diego, La Jolla, CA USA
| | - Sourabh Shukla
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward P Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Jonathan K Pokorski
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
| | - Nicole F Steinmetz
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA USA
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225
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Chung YH, Church D, Koellhoffer EC, Osota E, Shukla S, Rybicki EP, Pokorski JK, Steinmetz NF. Integrating plant molecular farming and materials research for next-generation vaccines. NATURE REVIEWS. MATERIALS 2021; 7:372-388. [PMID: 34900343 PMCID: PMC8647509 DOI: 10.1038/s41578-021-00399-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/18/2021] [Indexed: 05/04/2023]
Abstract
Biologics - medications derived from a biological source - are increasingly used as pharmaceuticals, for example, as vaccines. Biologics are usually produced in bacterial, mammalian or insect cells. Alternatively, plant molecular farming, that is, the manufacture of biologics in plant cells, transgenic plants and algae, offers a cheaper and easily adaptable strategy for the production of biologics, in particular, in low-resource settings. In this Review, we discuss current vaccination challenges, such as cold chain requirements, and highlight how plant molecular farming in combination with advanced materials can be applied to address these challenges. The production of plant viruses and virus-based nanotechnologies in plants enables low-cost and regional fabrication of thermostable vaccines. We also highlight key new vaccine delivery technologies, including microneedle patches and material platforms for intranasal and oral delivery. Finally, we provide an outlook of future possibilities for plant molecular farming of next-generation vaccines and biologics.
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Affiliation(s)
- Young Hun Chung
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
| | - Derek Church
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward C. Koellhoffer
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
| | - Elizabeth Osota
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Biomedical Science Program, University of California, San Diego, La Jolla, CA USA
| | - Sourabh Shukla
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
| | - Edward P. Rybicki
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Jonathan K. Pokorski
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
| | - Nicole F. Steinmetz
- Department of Bioengineering, University of California, San Diego, La Jolla, CA USA
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA USA
- Department of Radiology, University of California, San Diego Health, La Jolla, CA USA
- Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, CA USA
- Center for Nano-Immuno Engineering, University of California, San Diego, La Jolla, CA USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA USA
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226
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Warimwe GM, Francis MJ, Bowden TA, Thumbi SM, Charleston B. Using cross-species vaccination approaches to counter emerging infectious diseases. Nat Rev Immunol 2021; 21:815-822. [PMID: 34140665 PMCID: PMC8211312 DOI: 10.1038/s41577-021-00567-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2021] [Indexed: 02/08/2023]
Abstract
Since the initial use of vaccination in the eighteenth century, our understanding of human and animal immunology has greatly advanced and a wide range of vaccine technologies and delivery systems have been developed. The COVID-19 pandemic response leveraged these innovations to enable rapid development of candidate vaccines within weeks of the viral genetic sequence being made available. The development of vaccines to tackle emerging infectious diseases is a priority for the World Health Organization and other global entities. More than 70% of emerging infectious diseases are acquired from animals, with some causing illness and death in both humans and the respective animal host. Yet the study of critical host-pathogen interactions and the underlying immune mechanisms to inform the development of vaccines for their control is traditionally done in medical and veterinary immunology 'silos'. In this Perspective, we highlight a 'One Health vaccinology' approach and discuss some key areas of synergy in human and veterinary vaccinology that could be exploited to accelerate the development of effective vaccines against these shared health threats.
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Affiliation(s)
- George M Warimwe
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK.
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya.
- The Pirbright Institute, Woking, UK.
| | | | - Thomas A Bowden
- Wellcome Centre for Human Genetics, Division of Structural Biology, University of Oxford, Oxford, UK
| | - Samuel M Thumbi
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, UK
- Center for Epidemiological Modelling and Analysis, Institute of Tropical and Infectious Diseases, University of Nairobi, Nairobi, Kenya
- Paul G. Allen School for Global Animal Health, Washington State University, Pullman, WA, USA
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Muruganandah V, Kupz A. Immune responses to bacterial lung infections and their implications for vaccination. Int Immunol 2021; 34:231-248. [PMID: 34850883 DOI: 10.1093/intimm/dxab109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/28/2021] [Indexed: 11/14/2022] Open
Abstract
The pulmonary immune system plays a vital role in protecting the delicate structures of gaseous exchange against invasion from bacterial pathogens. With antimicrobial resistance becoming an increasing concern, finding novel strategies to develop vaccines against bacterial lung diseases remains a top priority. In order to do so, a continued expansion of our understanding of the pulmonary immune response is warranted. Whilst some aspects are well characterised, emerging paradigms such as the importance of innate cells and inducible immune structures in mediating protection provide avenues of potential to rethink our approach to vaccine development. In this review, we aim to provide a broad overview of both the innate and adaptive immune mechanisms in place to protect the pulmonary tissue from invading bacterial organisms. We use specific examples from several infection models and human studies to depict the varying functions of the pulmonary immune system that may be manipulated in future vaccine development. Particular emphasis has been placed on emerging themes that are less reviewed and underappreciated in vaccine development studies.
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Affiliation(s)
- Visai Muruganandah
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia
| | - Andreas Kupz
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia
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228
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Choudhury SM, Ma X, Dang W, Li Y, Zheng H. Recent Development of Ruminant Vaccine Against Viral Diseases. Front Vet Sci 2021; 8:697194. [PMID: 34805327 PMCID: PMC8595237 DOI: 10.3389/fvets.2021.697194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 10/04/2021] [Indexed: 01/21/2023] Open
Abstract
Pathogens of viral origin produce a large variety of infectious diseases in livestock. It is essential to establish the best practices in animal care and an efficient way to stop and prevent infectious diseases that impact animal husbandry. So far, the greatest way to combat the disease is to adopt a vaccine policy. In the fight against infectious diseases, vaccines are very popular. Vaccination's fundamental concept is to utilize particular antigens, either endogenous or exogenous to induce immunity against the antigens or cells. In light of how past emerging and reemerging infectious diseases and pandemics were handled, examining the vaccination methods and technological platforms utilized for the animals may provide some useful insights. New vaccine manufacturing methods have evolved because of developments in technology and medicine and our broad knowledge of immunology, molecular biology, microbiology, and biochemistry, among other basic science disciplines. Genetic engineering, proteomics, and other advanced technologies have aided in implementing novel vaccine theories, resulting in the discovery of new ruminant vaccines and the improvement of existing ones. Subunit vaccines, recombinant vaccines, DNA vaccines, and vectored vaccines are increasingly gaining scientific and public attention as the next generation of vaccines and are being seen as viable replacements to conventional vaccines. The current review looks at the effects and implications of recent ruminant vaccine advances in terms of evolving microbiology, immunology, and molecular biology.
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Affiliation(s)
- Sk Mohiuddin Choudhury
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - XuSheng Ma
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Wen Dang
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - YuanYuan Li
- Gansu Agricultural University, Lanzhou, China
| | - HaiXue Zheng
- State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Key Laboratory of Animal Virology of Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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229
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Kim DY, Shinde SK, Lone S, Palem RR, Ghodake GS. COVID-19 Pandemic: Public Health Risk Assessment and Risk Mitigation Strategies. J Pers Med 2021; 11:1243. [PMID: 34945715 PMCID: PMC8707584 DOI: 10.3390/jpm11121243] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/17/2021] [Accepted: 11/22/2021] [Indexed: 12/17/2022] Open
Abstract
A newly emerged respiratory viral disease called severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is also known as pandemic coronavirus disease (COVID-19). This pandemic has resulted an unprecedented global health crisis and devastating impact on several sectors of human lives and economies. Fortunately, the average case fatality ratio for SARS-CoV-2 is below 2%, much lower than that estimated for MERS (34%) and SARS (11%). However, COVID-19 has a much higher transmissibility rate, as evident from the constant increase in the count of infections worldwide. This article explores the reasons behind how COVID-19 was able to cause a global pandemic crisis. The current outbreak scenario and causes of rapid global spread are examined using recent developments in the literature, epidemiological features relevant to public health awareness, and critical perspective of risk assessment and mitigation strategies. Effective pandemic risk mitigation measures have been established and amended against COVID-19 diseases, but there is still much scope for upgrading execution and coordination among authorities in terms of organizational leadership's commitment and diverse range of safety measures, including administrative control measures, engineering control measures, and personal protective equipment (PPE). The significance of containment interventions against the COVID-19 pandemic is now well established; however, there is a need for its effective execution across the globe, and for the improvement of the performance of risk mitigation practices and suppression of future pandemic crises.
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Affiliation(s)
- Dae-Young Kim
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Korea; (D.-Y.K.); (S.K.S.)
| | - Surendra Krushna Shinde
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Korea; (D.-Y.K.); (S.K.S.)
| | - Saifullah Lone
- Interdisciplinary Division for Renewable Energy and Advanced Materials (iDREAM), National Institute of Technology (NIT), Srinagar 190006, India;
| | - Ramasubba Reddy Palem
- Department of Medical Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Korea;
| | - Gajanan Sampatrao Ghodake
- Department of Biological and Environmental Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Gyeonggi-do, Korea; (D.-Y.K.); (S.K.S.)
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230
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Lee YQ, Selvakumar A, See KC. Treatable Traits in Chronic Respiratory Disease: A Comprehensive Review. Cells 2021; 10:3263. [PMID: 34831485 PMCID: PMC8624727 DOI: 10.3390/cells10113263] [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: 10/10/2021] [Revised: 11/07/2021] [Accepted: 11/20/2021] [Indexed: 12/05/2022] Open
Abstract
Chronic respiratory diseases are major contributors to the global burden of disease. While understanding of these diseases has improved, treatment guidelines have continued to rely on severity and exacerbation-based approaches. A new personalised approach, termed the "treatable traits" approach, has been suggested to address the limitations of the existing treatment strategies. We aim to systematically review the current evidence regarding treatable traits in chronic respiratory diseases and to identify gaps in the current literature. We searched the PubMed and Embase databases and included studies on treatable traits and chronic respiratory diseases. We then extracted information on prevalence, prognostic implications, treatment options and benefits from these studies. A total of 58 papers was included for review. The traits identified were grouped into five broad themes: physiological, biochemical, psychosocial, microbiological, and comorbidity traits. Studies have shown advantages of the treatable traits paradigm in the clinical setting. However, few randomised controlled trials have been conducted. Findings from our review suggest that multidisciplinary management with therapies targeted at treatable traits has the potential to be efficacious when added to the best practices currently implemented. This paradigm has the potential to improve the holistic care of chronic respiratory diseases.
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Affiliation(s)
- Yong Qin Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore; (Y.Q.L.); (K.C.S.)
| | - Asvin Selvakumar
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore; (Y.Q.L.); (K.C.S.)
| | - Kay Choong See
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore; (Y.Q.L.); (K.C.S.)
- Division of Respiratory & Critical Care Medicine, Department of Medicine, National University Hospital, Singapore 119228, Singapore
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231
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Agustina Setyaningsih, Siregar KN. Factor Influencing Vaccine Rejection of Complete Basic Immunization in Indonesia. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.7195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM: This study aims to identify psychological factors against vaccine rejection in Indonesia. The study also provides a review of the group of different factors on psychological factors in social media.
METHODS: This study uses secondary data sourced from Facebook, Twitter, YouTube and Instagram about vaccines rejection from 2018 to 2019. That text is labeled based on seven psychological factors that influence vaccine rejection. The factor analysis method is used to determine the relationship between vaccine rejection and psychological factors.
RESULTS: Dimension 1 focused on individual and group influences, where the correlation value between factors such as vaccine misinformation, health worker trust, perception of side effect is 0.906 (>0.5). Dimension 2 used different factors such as trust in the goverment, negative opinion about vaccine efficacy, and social influence as contextual/environmental influencers,with a correlation value of 0.866 (>0.5). Meanwhile, Dimension 3 with general perception is a factor in vaccine and vaccination specific problems with a correlation value of 0.940 (>0.5).
CONCLUSION: Psychological factors are mainly associated with vaccine rejection. Stakeholders need to observe these factors in identifying conditions for childhood vaccines rejection posted on social media in Indonesia.
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232
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Bukar AM, Jesse FFA, Abdullah CAC, Noordin MM, Lawan Z, Mangga HK, Balakrishnan KN, Azmi MLM. Immunomodulatory Strategies for Parapoxvirus: Current Status and Future Approaches for the Development of Vaccines against Orf Virus Infection. Vaccines (Basel) 2021; 9:1341. [PMID: 34835272 PMCID: PMC8624149 DOI: 10.3390/vaccines9111341] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Orf virus (ORFV), the prototype species of the parapoxvirus genus, is the causative agent of contagious ecthyma, an extremely devastating skin disease of sheep, goats, and humans that causes enormous economic losses in livestock production. ORFV is known for its ability to repeatedly infect both previously infected and vaccinated sheep due to several immunomodulatory genes encoded by the virus that temporarily suppress host immunity. Therefore, the development of novel, safe and effective vaccines against ORFV infection is an important priority. Although, the commercially licensed live-attenuated vaccines have provided partial protection against ORFV infections, the attenuated viruses have been associated with major safety concerns. In addition to safety issues, the persistent reinfection of vaccinated animals warrants the need to investigate several factors that may affect vaccine efficacy. Perhaps, the reason for the failure of the vaccine is due to the long-term adaptation of the virus in tissue culture. In recent years, the development of vaccines against ORFV infection has achieved great success due to technological advances in recombinant DNA technologies, which have opened a pathway for the development of vaccine candidates that elicit robust immunity. In this review, we present current knowledge on immune responses elicited by ORFV, with particular attention to the effects of the viral immunomodulators on the host immune system. We also discuss the implications of strain variation for the development of rational vaccines. Finally, the review will also aim to demonstrate future strategies for the development of safe and efficient vaccines against ORFV infections.
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Affiliation(s)
- Alhaji Modu Bukar
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
- Department of Science Laboratory Technology, School Agriculture and Applied Sciences, Ramat Polytechnic Maiduguri, Maiduguri 1070, Borno, Nigeria
| | - Faez Firdaus Abdullah Jesse
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | | | - Mustapha M. Noordin
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
| | - Zaharaddeen Lawan
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
| | - Hassana Kyari Mangga
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
| | - Krishnan Nair Balakrishnan
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
| | - Mohd-Lila Mohd Azmi
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.M.N.); (Z.L.); (H.K.M.); (K.N.B.)
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Unwin HJT, Mwandigha L, Winskill P, Ghani AC, Hogan AB. Analysis of the potential for a malaria vaccine to reduce gaps in malaria intervention coverage. Malar J 2021; 20:438. [PMID: 34789253 PMCID: PMC8597213 DOI: 10.1186/s12936-021-03966-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/27/2021] [Indexed: 11/10/2022] Open
Abstract
Background The RTS,S/AS01 malaria vaccine is currently being evaluated in a cluster-randomized pilot implementation programme in three African countries. This study seeks to identify whether vaccination could reach additional children who are at risk from malaria but do not currently have access to, or use, core malaria interventions. Methods Using data from household surveys, the overlap between malaria intervention coverage and childhood vaccination (diphtheria-tetanus-pertussis dose 3, DTP3) uptake in 20 African countries with at least one first administrative level unit with Plasmodium falciparum parasite prevalence greater than 10% was calculated. Multilevel logistic regression was used to explore patterns of overlap by demographic and socioeconomic variables. The public health impact of delivering RTS,S/AS01 to those children who do not use an insecticide-treated net (ITN), but who received the DTP3 vaccine, was also estimated. Results Uptake of DTP3 was higher than malaria intervention coverage in most countries. Overall, 34% of children did not use ITNs and received DTP3, while 35% of children used ITNs and received DTP3, although this breakdown varied by country. It was estimated that there are 33 million children in these 20 countries who do not use an ITN. Of these, 23 million (70%) received the DTP3 vaccine. Vaccinating those 23 million children who receive DTP3 but do not use an ITN could avert up to an estimated 9.7 million (range 8.5–10.8 million) clinical malaria cases each year, assuming all children who receive DTP3 are administered all four RTS,S doses. An additional 10.8 million (9.5–12.0 million) cases could be averted by vaccinating those 24 million children who receive the DTP3 vaccine and use an ITN. Children who had access to or used an ITN were 9–13% more likely to reside in rural areas compared to those who had neither intervention regardless of vaccination status. Mothers’ education status was a strong predictor of intervention uptake and was positively associated with use of ITNs and vaccination uptake and negatively associated with having access to an ITN but not using it. Wealth was also a strong predictor of intervention coverage. Conclusions Childhood vaccination to prevent malaria has the potential to reduce inequity in access to existing malaria interventions and could substantially reduce the childhood malaria burden in sub-Saharan Africa, even in regions with lower existing DTP3 coverage. Supplementary Information The online version contains supplementary material available at 10.1186/s12936-021-03966-x.
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Affiliation(s)
- H Juliette T Unwin
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK
| | - Lazaro Mwandigha
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK.,Nuffield Department of Primary Care Health Sciences, University of Oxford Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK
| | - Peter Winskill
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK
| | - Azra C Ghani
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK
| | - Alexandra B Hogan
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, UK.
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234
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Echeverria-Londono S, Li X, Toor J, de Villiers MJ, Nayagam S, Hallett TB, Abbas K, Jit M, Klepac P, Jean K, Garske T, Ferguson NM, Gaythorpe KAM. How can the public health impact of vaccination be estimated? BMC Public Health 2021; 21:2049. [PMID: 34753437 PMCID: PMC8577012 DOI: 10.1186/s12889-021-12040-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/19/2021] [Indexed: 11/25/2022] Open
Abstract
Background Deaths due to vaccine preventable diseases cause a notable proportion of mortality worldwide. To quantify the importance of vaccination, it is necessary to estimate the burden averted through vaccination. The Vaccine Impact Modelling Consortium (VIMC) was established to estimate the health impact of vaccination. Methods We describe the methods implemented by the VIMC to estimate impact by calendar year, birth year and year of vaccination (YoV). The calendar and birth year methods estimate impact in a particular year and over the lifetime of a particular birth cohort, respectively. The YoV method estimates the impact of a particular year’s vaccination activities through the use of impact ratios which have no stratification and stratification by activity type and/or birth cohort. Furthermore, we detail an impact extrapolation (IE) method for use between coverage scenarios. We compare the methods, focusing on YoV for hepatitis B, measles and yellow fever. Results We find that the YoV methods estimate similar impact with routine vaccinations but have greater yearly variation when campaigns occur with the birth cohort stratification. The IE performs well for the YoV methods, providing a time-efficient mechanism for updates to impact estimates. Conclusions These methods provide a robust set of approaches to quantify vaccination impact; however it is vital that the area of impact estimation continues to develop in order to capture the full effect of immunisation.
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Affiliation(s)
- Susy Echeverria-Londono
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Xiang Li
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Jaspreet Toor
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Margaret J de Villiers
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Shevanthi Nayagam
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Timothy B Hallett
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Kaja Abbas
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Mark Jit
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Petra Klepac
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Kévin Jean
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK.,Laboratoire MESuRS, Conservatoire national des Arts et Métiers, Paris, France.,Unité PACRI, Institut Pasteur, Conservatoire national des Arts et Métiers, Paris, France
| | - Tini Garske
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Neil M Ferguson
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK
| | - Katy A M Gaythorpe
- MRC Centre for Global Infectious Disease Analysis, Jameel Institute, School of Public Health, Imperial College London, London, UK.
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235
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Dara S, Sharma SK, Kumar A, Goel AD, Jain V, Sharma MC, Gupta MK, Saurabh S, Bhardwaj P, Misra S. Awareness, Attitude, and Acceptability of Healthcare Workers About COVID-19 Vaccination in Western India. Cureus 2021; 13:e18400. [PMID: 34729277 PMCID: PMC8556728 DOI: 10.7759/cureus.18400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2021] [Indexed: 02/02/2023] Open
Abstract
Introduction In the coronavirus disease 2019 (COVID-19) pandemic, healthcare workers (HCWs) are at the frontline around the world and categorized as a priority group for COVID-19 vaccines. Our study aimed to find out the COVID-19 vaccine awareness, attitude, and acceptance in HCWs in western India. Methods A cross-sectional study was carried out between January 14 and January 28, 2021, at a tertiary care hospital located in western India. Data were collected anonymously using Google Forms. Descriptive statistics were used to determine the sociodemographic variables. The knowledge and attitude of HCWs were analyzed using mean and SD. Multivariate analysis was done to find out the association between participants' attitudes with demographic characteristics. Results Of the total health care workers, 498 answered the survey. The mean age of participants was 29.8 years (SD 6.4), and 354 (71.1%) were male. Among the respondents, 445 (89.4%) would accept a COVID-19 vaccine when available. Four-hundred seventy-six (476) HCWs (95.6%) had excellent knowledge regarding COVID-19 and COVID-19-appropriate behavior. The majority of the subjects (399) had a neutral attitude toward COVID-19 vaccination. Health care professionals (doctors and nurses) had higher acceptance for vaccination against COVID-19 than non-professionals. Conclusions The higher rates of COVID-19 vaccine acceptability and the excellent knowledge among HCWs will directly enhance the level and acceptability of vaccine among the general population and will definitely help in reducing the mortality and morbidity related to COVID-19.
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Affiliation(s)
- Sanjeeta Dara
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Suresh K Sharma
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Ashok Kumar
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Akhil D Goel
- Community Medicine & Family Medicine, All India Institute of Medical Sciences, Jodhpur, IND
| | - Vidhi Jain
- Microbiology, All India Institute of Medical Sciences, Jodhpur, IND
| | - Mukesh C Sharma
- College of Nursing, All India Institute of Medical Sciences, Jodhpur, IND
| | - Manoj K Gupta
- Community Medicine & Family Medicine, All India Institute of Medical Sciences, Jodhpur, IND
| | - Suman Saurabh
- Community Medicine & Family Medicine, All India Institute of Medical Sciences, Jodhpur, IND
| | - Pankaj Bhardwaj
- Community Medicine & Family Medicine and School of Public Health, All India Institute of Medical Sciences, Jodhpur, IND
| | - Sanjeev Misra
- Surgical Oncology, All India Institute of Medical Sciences, Jodhpur, IND
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236
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Redirecting host preexisting influenza A virus immunity for cancer immunotherapy. Cancer Immunol Immunother 2021; 71:1611-1623. [PMID: 34731283 PMCID: PMC8563826 DOI: 10.1007/s00262-021-03099-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/22/2021] [Indexed: 12/04/2022]
Abstract
We tested the concept that host preexisting influenza A virus immunity can be redirected to inhibit tumor growth and metastasis through systemic administration of influenza A virus–related peptides to targeted tumors. Mice infected with influenza A virus strain A/Puerto Rico/8/34 (PR8) were used as a model of a host with preexisting viral immunity. The extent to which preexisting influenza A immunity in PR8-immunized mice can be redirected to inhibit tumor growth and metastasis was first examined by ectopic expression of influenza A nucleoprotein (NP) and hemagglutinin (HA) in syngeneic mammary tumor cells via lentiviral transduction. Then, the feasibility of implementing this strategy using a systemic therapy approach was assessed by systemic delivery of major histocompatibility complex class I (MHC-I)-compatible peptides to targeted mammary tumors overexpressing human epidermal growth factor receptor-2 (HER2) in mice using a novel HER2-targeting single-lipid nanoparticle (SLNP). Our results show that preexisting influenza A immunity in PR8-immunized mice could be quickly redirected to syngeneic tumors expressing influenza A NP and HA, leading to strong inhibition of tumor growth and metastasis and improvement of survival compared to the findings in antigen-naïve control mice. MHC-I-compatible peptides could be delivered to targeted mammary tumors in mice using the HER2-targeting SLNP for antigen presentation, which subsequently redirected preexisting influenza A immunity to the tumors to exert antitumor activities. In conclusion, preexisting influenza A immunity can be repurposed for cancer immunotherapy through systemic delivery of influenza A–related peptides to targeted tumors. Further development of the strategy for clinical translation is warranted.
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237
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Zhao K, Xie H, Li L, Esdaile JM, Aviña-Zubieta JA. Increased risk of severe infections and mortality in patients with newly diagnosed systemic lupus erythematosus: a population-based study. Rheumatology (Oxford) 2021; 60:5300-5309. [PMID: 33751035 DOI: 10.1093/rheumatology/keab219] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/20/2021] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE To evaluate the risk of severe infection and infection-related mortality among patients with newly diagnosed SLE. METHODS We conducted an age- and gender-matched cohort study of all patients with incident SLE between 1 January 1997 and 31 March 2015 using administrative health data from British Columbia, Canada. Primary outcome was the first severe infection after SLE onset necessitating hospitalization or occurring during hospitalization. Secondary outcomes were total number of severe infections and infection-related mortality. RESULTS We identified 5169 SLE patients and matched them with 25 845 non-SLE individuals from the general population, yielding 955 and 1986 first severe infections during 48 367 and 260 712 person-years follow-up, respectively. The crude incidence rate ratios for first severe infection and infection-related mortality were 2.59 (95% CI: 2.39, 2.80) and 2.20 (95% CI: 1.76, 2.73), respectively. The corresponding adjusted hazard ratios were 1.82 (95% CI: 1.66, 1.99) and 1.61 (95% CI: 1.24, 2.08). SLE patients had an increased risk of a greater total number of severe infections with crude rate ratio of 3.24 (95% CI: 3.06, 3.43) and adjusted rate ratio of 2.07 (95% CI: 1.82, 2.36). CONCLUSION SLE is associated with increased risks of first severe infection (1.8-fold), a greater total number of severe infections (2.1-fold) and infection-related mortality (1.6-fold).
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Affiliation(s)
- Kai Zhao
- Arthritis Research Canada, Richmond.,Faculty of Health Sciences, Simon Fraser University, Burnaby
| | - Hui Xie
- Arthritis Research Canada, Richmond.,Faculty of Health Sciences, Simon Fraser University, Burnaby
| | | | - John M Esdaile
- Arthritis Research Canada, Richmond.,Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, Canada
| | - J Antonio Aviña-Zubieta
- Arthritis Research Canada, Richmond.,Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, Canada
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Sellner J, Jenkins TM, von Oertzen TJ, Bassetti CL, Beghi E, Bereczki D, Bodini B, Cavallieri F, Di Liberto G, Helbok R, Macerollo A, Maia LF, Oreja‐Guevara C, Özturk S, Rakusa M, Pisani A, Priori A, Sauerbier A, Soffietti R, Taba P, Zedde M, Crean M, Burlica A, Twardzik A, Moro E. A plea for equitable global access to COVID-19 diagnostics, vaccination and therapy: The NeuroCOVID-19 Task Force of the European Academy of Neurology. Eur J Neurol 2021; 28:3849-3855. [PMID: 33460486 PMCID: PMC8014664 DOI: 10.1111/ene.14741] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 01/13/2021] [Indexed: 12/13/2022]
Abstract
Coronavirus disease 2019 (COVID-19), a multi-organ disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), continues to challenge health and care systems around the globe. The pandemic has disrupted acute neurology services and routine patient care and has impacted the clinical course in patients with chronic neurological disease. COVID-19 appears to have exposed inequalities of societies and healthcare systems and had a disproportionate impact on already vulnerable communities. The next challenge will be to set up initiatives to stop disparities in all aspects related to COVID-19. From the medical perspective, there is a need to consider inequalities in prevention, treatment and long-term consequences. Some of the issues of direct relevance to neurologists are summarised. With this appraisal, the European Academy of Neurology NeuroCOVID-19 Task Force intends to raise awareness of the potential impact of COVID-19 on inequalities in healthcare and calls for action to prevent disparity at individual, national and supranational levels.
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Affiliation(s)
- Johann Sellner
- Department of NeurologyLandesklinikum Mistelbach‐GänserndorfMistelbachAustria
- Department of NeurologyChristian Doppler Medical CenterParacelsus Medical UniversitySalzburgAustria
- Department of NeurologyKlinikum rechts der IsarTechnische Universität MünchenMünchenGermany
| | - Thomas M. Jenkins
- Sheffield Institute for Translational NeuroscienceUniversity of SheffieldSheffieldUK
- Sheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Tim J. von Oertzen
- Faculty of MedicineJohannes‐Kepler UniversitätLinzAustria
- Department of Neurology 1Kepler UniversitätsklinikumLinzAustria
| | | | - Ettore Beghi
- Istituto di Ricerche Farmacologiche Mario NegriIRCCSMilanItaly
| | | | - Benedetta Bodini
- Department of NeurologySaint‐Antoine HospitalAPHPSorbonne UniversityParisFrance
| | - Francesco Cavallieri
- Neurology UnitNeuromotor and Rehabilitation DepartmentAzienda USL‐IRCCS di Reggio EmiliaReggio EmiliaItaly
- Clinical and Experimental Medicine PhD ProgramUniversity of Modena and Reggio EmiliaModenaItaly
| | - Giovanni Di Liberto
- Department of Clinical NeurosciencesCentre Hospitalier Universitaire Vaudois and University of LausanneLausanneSwitzerland
| | - Raimund Helbok
- Department of NeurologyMedical University of InnsbruckInnsbruckAustria
| | - Antonella Macerollo
- Walton Centre NHS Foundation TrustLiverpoolUK
- School of PsychologyFaculty of Health and Life SciencesUniversity of LiverpoolLiverpoolUK
| | - Luis F. Maia
- Department of NeurologyHospital Santo AntónioCentro Hospitalar Universitário do PortoPortoPortugal
- i3S ‐ Instituto de Investigação e Inovação em Saúde Universidade do PortoPortoPortugal
| | - Celia Oreja‐Guevara
- Department of NeurologyHospital Clinico San CarlosMadridSpain
- Departamento de MedicinaFacultad de MedicinaUniversidad Complutense de Madrid (UCMMadridSpain
- IdISSCMadridSpain
| | - Serefnur Özturk
- Department of NeurologyFaculty of MedicineSelcuk UniversityKonyaTurkey
| | - Martin Rakusa
- Department of NeurologyUniversity Medical Centre MariborMariborSlovenia
| | - Antonio Pisani
- Department of Brain and Behavioral SciencesUniversity of PaviaPaviaItaly
- IRCCS Mondino FoundationPaviaItaly
| | - Alberto Priori
- Division of NeurologyDepartment of Neurology‘Aldo Ravelli’ Research CenterUniversity of Milan and ASST Santi Paolo e CarloMilanItaly
| | - Anna Sauerbier
- Department of NeurologyUniversity Hospital CologneCologneGermany
- King's College HospitalNational Parkinson Foundation International Centre of ExcellenceLondonUK
| | - Riccardo Soffietti
- Division of Neuro‐OncologyDepartment of NeuroscienceUniversity of TurinTurinItaly
| | - Pille Taba
- Department of Neurology and NeurosurgeryInstitute of Clinical MedicineUniversity of TartuTartuEstonia
| | - Marialuisa Zedde
- Neurology UnitNeuromotor and Rehabilitation DepartmentAzienda USL‐IRCCS di Reggio EmiliaReggio EmiliaItaly
- Clinical and Experimental Medicine PhD ProgramUniversity of Modena and Reggio EmiliaModenaItaly
| | - Michael Crean
- European Academy of Neurology (EAN) Head OfficeViennaAustria
| | - Anja Burlica
- European Academy of Neurology (EAN) Head OfficeViennaAustria
| | - Alex Twardzik
- European Academy of Neurology (EAN) Head OfficeViennaAustria
| | - Elena Moro
- Division of NeurologyCHU of GrenobleGrenoble Institute of NeurosciencesGrenoble Alpes UniversityGrenobleFrance
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Oso BJ, Olaoye IF, Ogidi CO. In silico Design of a Vaccine Candidate for SAR S-CoV-2 Based on Multiple T-cell and B-cell Epitopes. ARCHIVES OF RAZI INSTITUTE 2021; 76:1191-1202. [PMID: 35355741 PMCID: PMC8934067 DOI: 10.22092/ari.2020.351605.1526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/08/2020] [Indexed: 06/14/2023]
Abstract
Coronaviruses (2019-nCoV) are large single-stranded RNA viruses that usually cause respiratory infections with a crude lethality ratio of 3.8% and high levels of transmissibility. There is yet no applicable clinical evaluation to assess the efficacy of various therapeutic agents that have been suggested as investigational drugs against the viruses despite their respective supposed hypothetical claims due to their antiviral potentials. Moreover, the development of a safe and effective vaccine has been suggested as an intervention to control the 2019-nCoV pandemic. However, a major concern in the development of a 2019-nCoV vaccine is the possibility of stimulating a corresponding immune response without enhancing the induction of the disease and associated side effects. The present investigation was carried out by predicting the antigenicity of the primary sequences of 2019-nCoV structural proteins and identification of B-cell and T-cell epitopes through the Bepipred and PEPVAC servers, respectively. The peptides of the vaccine construct include the selected epitopes based on the VaxiJen score with a threshold of 1.0 and β-defensinas an adjuvant. The putative binding of the vaccine constructs to intracellular toll-like receptors (TLRs) was assessed through molecular docking analysis and molecular dynamics simulations. The selected epitopes for the final vaccine construct are DPNFKD, SPLSLN, and LELQDHNE as B-cell epitopes and EPKLGSLVV, NFKDQVILL, and SSRSSSRSR as T-cell epitopes. The molecular docking analysis showed the vaccine construct could have favorable interactions with TLRs as indicated by the negative values of the computed binding energies. The constructed immunogen based on the immune informatics study could be employed in the strategy to develop potential vaccine candidates against 2019-nCoV.
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Affiliation(s)
- B J Oso
- Department of Biochemistry, McPherson University, Seriki Sotayo, Ogun State, Nigeria
| | - I F Olaoye
- Department of Biochemistry, McPherson University, Seriki Sotayo, Ogun State, Nigeria
- Biotechnology Unit, Department of Biological Sciences, Kings University, Odeomu, Nigeria
| | - C O Ogidi
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, England
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240
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Gupta MS, Kumar TP, Gowda DV, Rosenholm JM. Orodispersible films: Conception to quality by design. Adv Drug Deliv Rev 2021; 178:113983. [PMID: 34547323 DOI: 10.1016/j.addr.2021.113983] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/03/2021] [Accepted: 09/14/2021] [Indexed: 01/09/2023]
Abstract
Orodispersible films (ODFs) are ultra-thin, stamp-sized, elegant, portable and patient-centric pharmaceutical dosage forms that do not need water to be ingested. They are particularly useful for paediatric and geriatric patient populations with special needs such as dysphagia, Parkinson's disease, and oral cancer. Accordingly, they hold tremendous potential in gaining patient compliance, convenience and pharmacotherapy. In the present review, conception and evolution of ODFs as a product and its technology are discussed. The review continues by providing overview about the potential of ODFs as carriers for delivering drugs, herbal extracts, probiotics and vaccines. Besides, strategies employed in drug cargo loading, taste masking of bitter drugs and enhancing drug stability are discussed. Finally, the review concludes by providing a brief overview about quality by design (QbD) principles in development of ODFs.
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Affiliation(s)
- Maram Suresh Gupta
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, Karnataka, India.
| | - Tegginamath Pramod Kumar
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, Karnataka, India
| | - Devegowda Vishkante Gowda
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Sri Shivarathreeshwara Nagar, Mysore 570 015, Karnataka, India
| | - Jessica M Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
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Ozawa S, Chen HH, Rao GG, Eguale T, Stringer A. Value of pneumococcal vaccination in controlling the development of antimicrobial resistance (AMR): Case study using DREAMR in Ethiopia. Vaccine 2021; 39:6700-6711. [PMID: 34538697 DOI: 10.1016/j.vaccine.2021.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 03/11/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Antimicrobial resistance (AMR) poses an imminent threat to global health security. Pneumococcal vaccination reduces disease incidence, prevents antibiotic use, and decreases antibiotic-resistant infections. However, the benefit of vaccination in reducing AMR has been poorly quantified to date. METHODS We developed an agent-based model, DREAMR (Dynamic Representation of the Economics of AMR) to evaluate the economic value of childhood immunization with the pneumococcal conjugate vaccine (PCV) in mitigating the development of AMR. Our model incorporates vaccination coverage, disease incidence, care seeking, and antibiotic use. Accumulation of AMR is simulated based on antibiotic exposure through pharmacokinetics and resulting pharmacodynamics. The model was applied to Ethiopia. RESULTS Introduction of PCV vaccination has helped slow the development of AMR by 14.77% for amoxicillin and 0.59% for ceftriaxone in Ethiopia since 2011. In addition to the benefit of reduction in disease incidence, PCV vaccination has averted approximately 718,100 antibiotic treatment failures and 9,520 AMR-related deaths (27.8% reduction) in Ethiopia between 2011 and 2017, resulting in savings of $32.7 million. Maintaining current PCV immunization coverage will contribute an additional $7.67 million in annual AMR cost savings over five years compared to no vaccination scenario, which could increase to $11.43 million by increasing PCV coverage to 85% by 2022. CONCLUSIONS This study is the first to demonstrate the broader economic value of pneumococcal vaccination in controlling the development of AMR in Africa. Vaccination not only saves lives by preventing illnesses, but also benefits society by reducing antibiotic utilization and treatment failures due to AMR.
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Affiliation(s)
- Sachiko Ozawa
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA; Department of Maternal and Child Health, UNC Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
| | - Hui-Han Chen
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Gauri G Rao
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Tadesse Eguale
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Andrew Stringer
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
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Antonelli-Incalzi R, Blasi F, Conversano M, Gabutti G, Giuffrida S, Maggi S, Marano C, Rossi A, Vicentini M. Manifesto on the Value of Adult Immunization: "We Know, We Intend, We Advocate". Vaccines (Basel) 2021; 9:vaccines9111232. [PMID: 34835163 PMCID: PMC8625332 DOI: 10.3390/vaccines9111232] [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: 09/03/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 12/11/2022] Open
Abstract
Immunization through vaccination is a milestone achievement that has made a tremendous contribution to public health. Historically, immunization programs aimed firstly to protect children, who were disproportionally affected by infectious diseases. However, vaccine-preventable diseases can have significant impacts on adult mortality, health, and quality of life. Despite this, adult vaccinations have historically been overlooked in favor of other health priorities, because their benefits to society were not well recognized. As the general population is aging, the issue of vaccination in older adults is gaining importance. In high-income countries, recommendations for the routine vaccination of older adults have been gradually introduced. The Italian National Immunization Plan is considered to be among the most advanced adult vaccination plans in Europe. However, available data indicate there is low adherence to vaccination recommendations in Italy. The COVID-19 pandemic has exposed the damage that can be caused by an infectious disease, especially among adults and individuals with comorbidities. The aim of this “Manifesto”, therefore, is to provide an overview of the existing evidence on the value of adult vaccination, in the Italian context, with a call to action to healthcare providers and health authorities.
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Affiliation(s)
- Raffaele Antonelli-Incalzi
- Geriatric Unit, Campus Bio-Medico University, 00128 Rome, Italy;
- Italian Society of Gerontology and Geriatrics, 50129 Florence, Italy
| | - Francesco Blasi
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy;
- Respiratory Unit and Adult Cystic Fibrosis Center, Department of Internal Medicine, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Michele Conversano
- Department for Public Health, Local Health Unit Taranto, 74121 Taranto, Italy;
| | - Giovanni Gabutti
- Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Sandro Giuffrida
- Department of Prevention, Local Health Unit Reggio Calabria, 89124 Reggio Calabria, Italy;
| | - Stefania Maggi
- Aging Branch, Institute of Neuroscience, National Research Council, 35128 Padova, Italy;
| | | | - Alessandro Rossi
- Italian Society of General Medicine and Primary Care, 50142 Florence, Italy;
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Legal and regulatory processes for Japan's COVID-19 immunization program. Vaccine 2021; 39:6449-6450. [PMID: 34535315 PMCID: PMC8413481 DOI: 10.1016/j.vaccine.2021.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 11/21/2022]
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CD8 T Cell Vaccines and a Cytomegalovirus-Based Vector Approach. Life (Basel) 2021; 11:life11101097. [PMID: 34685468 PMCID: PMC8538937 DOI: 10.3390/life11101097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022] Open
Abstract
The twentieth century witnessed a huge expansion in the number of vaccines used with great success in combating diseases, especially the ones caused by viral and bacterial pathogens. Despite this, several major public health threats, such as HIV, tuberculosis, malaria, and cancer, still pose an enormous humanitarian and economic burden. As vaccines based on the induction of protective, neutralizing antibodies have not managed to effectively combat these diseases, in recent decades, the focus has increasingly shifted towards the cellular immune response. There is substantial evidence demonstrating CD8 T cells as key players in the protection not only against many viral and bacterial pathogens, but also in the fight against neoplastic cells. Here, we present arguments for CD8 T cells to be considered as promising candidates for vaccine targeting. We discuss the heterogeneity of CD8 T cell populations and their contribution in the protection of the host. We also outline several strategies of using a common human pathogen, cytomegalovirus, as a vaccine vector since accumulated data strongly suggest it represents a promising approach to the development of novel vaccines against both pathogens and tumors.
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245
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Markert UR, Szekeres-Bartho J, Schleußner E. Adverse effects on female fertility from vaccination against COVID-19 unlikely. J Reprod Immunol 2021; 148:103428. [PMID: 34601377 PMCID: PMC8453778 DOI: 10.1016/j.jri.2021.103428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 10/26/2022]
Abstract
This opinion paper briefly presents arguments that support the unlikelihood of an impact on female fertility from current covid-19 vaccines.
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Affiliation(s)
- Udo R Markert
- Department of Obstetrics, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.
| | | | - Ekkehard Schleußner
- Department of Obstetrics, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
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Reñosa MDC, Landicho J, Wachinger J, Dalglish SL, Bärnighausen K, Bärnighausen T, McMahon SA. Nudging toward vaccination: a systematic review. BMJ Glob Health 2021; 6:bmjgh-2021-006237. [PMID: 34593513 PMCID: PMC8487203 DOI: 10.1136/bmjgh-2021-006237] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/19/2021] [Indexed: 12/21/2022] Open
Abstract
Background Vaccine hesitancy (VH) and the global decline of vaccine coverage are a major global health threat, and novel approaches for increasing vaccine confidence and uptake are urgently needed. ‘Nudging’, defined as altering the environmental context in which a decision is made or a certain behaviour is enacted, has shown promising results in several health promotion strategies. We present a comprehensive synthesis of evidence regarding the value and impact of nudges to address VH. Methods We conducted a systematic review to determine if nudging can mitigate VH and improve vaccine uptake. Our search strategy used Medical Subject Headings (MeSH) and non-MeSH terms to identify articles related to nudging and vaccination in nine research databases. 15 177 titles were extracted and assessed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The final list of included articles was evaluated using the Mixed Methods Appraisal Tool and the Grading of Recommendations, Assessment, Development and Evaluations framework. Findings Identified interventions are presented according to a framework for behaviour change, MINDSPACE. Articles (n=48) from 10 primarily high-income countries were included in the review. Nudging-based interventions identified include using reminders and recall, changing the way information is framed and delivered to an intended audience, changing the messenger delivering information, invoking social norms and emotional affect (eg, through storytelling, dramatic narratives and graphical presentations), and offering incentives or changing defaults. The most promising evidence exists for nudges that offer incentives to parents and healthcare workers, that make information more salient or that use trusted messengers to deliver information. The effectiveness of nudging interventions and the direction of the effect varies substantially by context. Evidence for some approaches is mixed, highlighting a need for further research, including how successful interventions can be adapted across settings. Conclusion Nudging-based interventions show potential to increase vaccine confidence and uptake, but further evidence is needed for the development of clear recommendations. The ongoing COVID-19 pandemic increases the urgency of undertaking nudging-focused research. PROSPERO registration number CRD42020185817.
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Affiliation(s)
- Mark Donald C Reñosa
- Heidelberg Institute of Global Health, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
- Department of Epidemiology and Biostatistics, Research Institute for Tropical Medicine, Muntinlupa City, Philippines
| | - Jeniffer Landicho
- Department of Epidemiology and Biostatistics, Research Institute for Tropical Medicine, Muntinlupa City, Philippines
| | - Jonas Wachinger
- Heidelberg Institute of Global Health, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Sarah L Dalglish
- Institute for Global Health, University College London, London, UK
- International Health Department, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Kate Bärnighausen
- Heidelberg Institute of Global Health, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
- School of Public Health, University of the Witwatersrand, Johannesburg-Braamfontein, South Africa
| | - Till Bärnighausen
- Heidelberg Institute of Global Health, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
- Harvard Center for Population and Development Studies, Harvard University, Cambridge, Massachusetts, USA
| | - Shannon A McMahon
- Heidelberg Institute of Global Health, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
- International Health Department, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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Kelso JM, Ziegler JB. Maximizing the Potential of Vaccination. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2021; 9:3606-3607. [PMID: 34627534 PMCID: PMC8493059 DOI: 10.1016/j.jaip.2021.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/25/2022]
Affiliation(s)
- John M Kelso
- Division of Allergy, Asthma and Immunology, Scripps Clinic, San Diego, Calif.
| | - John B Ziegler
- School of Women's and Children's Health, University of NSW, Sydney, NSW, Australia; Department of Immunology & Infectious Diseases, Sydney Children's Hospital, Randwick, Sydney, NSW, Australia
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Abstract
INTRODUCTION Vaccination is so far the most effective way of eradicating infections. Rapidly emerging drug resistance against infectious diseases and chemotherapy-related toxicities in cancer warrant immediate vaccine development to save mankind. Subunit vaccines alone, however, fail to elicit sufficiently strong and long-lasting protective immunity against deadly pathogens. Nanoparticle (NP)-based delivery vehicles like microemulsions, liposomes, virosomes, nanogels, micelles and dendrimers offer promising strategies to overcome limitations of traditional vaccine adjuvants. Nanovaccines can improve targeted delivery, antigen presentation, stimulation of body's innate immunity, strong T cell response combined with safety to combat infectious diseases and cancers. Further, nanovaccines can be highly beneficial to generate effective immutherapeutic formulations against cancer. AREAS COVERED This review summarizes the emerging nanoparticle strategies highlighting their success and challenges in preclinical and clinical trials in infectious diseases and cancer. It provides a concise overview of current nanoparticle-based vaccines, their adjuvant potential and their cellular delivery mechanisms. EXPERT OPINION The nanovaccines (50-250 nm in size) are most efficient in terms of tissue targeting, prolonged circulation and preferential uptake by the professional APCs chiefly due to their small size. More rational designing, improved antigen loading, extensive functionalization and targeted delivery are some of the future goals of ideal nanovaccines.
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Affiliation(s)
- Amrita Das
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Nahid Ali
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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Barría P RM. Nursing and its Essential Role in the Vaccination against COVID-19: New Challenge in a Pandemic Scenario. INVESTIGACION Y EDUCACION EN ENFERMERIA 2021; 39:e01. [PMID: 34822228 PMCID: PMC8912169 DOI: 10.17533/udea.iee.v39n3e01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A la fecha de publicación de este editorial ya hemos transitado más de 20 meses enfrentando la compleja y desafiante pandemia por SARS-CoV-2 desde que se reportara el primer caso a finales de 2019. Las consecuencias en el mundo han sido significativas no solo por la morbilidad y mortalidad sin precedentes sino, además, como efecto de los drásticos cambios ocurridos en las dinámicas usuales en lo individual, familiar y colectivo dada la interrupción generalizada de las funciones y operaciones habituales en los distintos contextos de la vida cotidiana, por lo cual se mantuvieron solamente aquellas actividades consideradas esenciales.
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The Influence of War and Conflict on Infectious Disease: A Rapid Review of Historical Lessons We Have Yet to Learn. SUSTAINABILITY 2021. [DOI: 10.3390/su131910783] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Armed conflicts degrade established healthcare systems, which typically manifests as a resurgence of preventable infectious diseases. While 70% of deaths globally are now from non-communicable disease; in low-income countries, respiratory infections, diarrheal illness, malaria, tuberculosis, and HIV/AIDs are all in the top 10 causes of death. The burden of these infectious diseases is exacerbated by armed conflict, translating into even more dramatic long-term consequences. This rapid evidence review searched electronic databases in PubMed, Scopus, and Web of Science. Of 381 identified publications, 73 were included in this review. Several authors indicate that the impact of infectious diseases increases in wars and armed conflicts due to disruption to surveillance and response systems that were often poorly developed to begin with. Although the true impact of conflict on infectious disease spread is not known and requires further research, the link between them is indisputable. Current decision-making management systems are insufficient and only pass the baton to the next unwary generation.
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