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1.
BMC Health Serv Res ; 24(1): 886, 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-39095772

RESUMO

BACKGROUND: Data quality is a major challenge for most health institutions and organizations across the globe. The Ghana Health Service, supported by other non-governmental organizations, has instituted various strategies to address and improve data quality issues in regional and district health facilities in Ghana. This study sought to assess routine data quality of Expanded Programme on Immunization, specifically for Penta 1 and Penta 3 vaccines. METHODS: A descriptive cross-sectional study design was used for the study. A simple random sampling method was used to select thirty-four health facilities across seven sub-municipalities. Records from the Expanded Programme on Immunization (EPI) Tally Books and Monthly Vaccination Summary Report were reviewed and compared with data entered into the District Health Information Management System 2 (DHIMS2) software for the period of January to December 2020. The World Health Organization Data quality self-assessment (DQS) tool was used to compare data recorded in the EPI tally books with monthly data from summary reports and DHIMS2. Data accuracy ratio was determined by the data quality assessment tools and STATA version 14.2 was used to run additional analysis. A data discrepancy is when two corresponding data sets don't match. RESULTS: The results showed discrepancies between recounted tallies in EPI tally books and summary reports submitted as well as DHIMS2. Verification factor of 97.4% and 99.3% and a discrepancy rate of 2.6 and 0.7 for Penta 1 and Penta 3 respectively were recorded for tallied data and summary reports. A verification factor of 100.5% and 99.9% and a discrepancy of -0.5 and 0.1 respectively for the same antigens were obtained for the summary reports and DHIMS2. Data timeliness was 90.7% and completeness was 100% for both antigens. CONCLUSION: The accuracy of Penta 1 and Penta 3 data on EPI in the Upper East Region of Ghana was high. The data availability, timeliness and completeness were also high.


Assuntos
Confiabilidade dos Dados , Programas de Imunização , Gana , Humanos , Estudos Transversais , Programas de Imunização/estatística & dados numéricos , Programas de Imunização/normas , Vacinas contra Poliovirus/administração & dosagem , Avaliação de Programas e Projetos de Saúde
2.
Zhonghua Yu Fang Yi Xue Za Zhi ; 58(9): 1285-1294, 2024 Sep 06.
Artigo em Zh | MEDLINE | ID: mdl-39290008

RESUMO

Influenza places a substantial burden on the elderly population. Implementation of free influenza vaccination project can significantly improve the influenza vaccination rate in the elderly, and reduce influenza incidence, hospitalization, and death. With the implementation of the project, rich experience has been accumulated in various localities. To provide guidance for scientific implementation and evaluation of the free influenza vaccination project in other regions, the expert group formulated recommendations for the implementation and evaluation of the project. The recommendations focus on project application and approval, project organization and implementation, and project evaluation, in which the vaccination rate, vaccine effectiveness, satisfaction, safety, health economics, and health benefits are evaluated.


Assuntos
Vacinas contra Influenza , Influenza Humana , Humanos , Idoso , Influenza Humana/prevenção & controle , Vacinação , Programas de Imunização/normas
3.
Br J Cancer ; 124(5): 860-861, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33288844

RESUMO

Patients with cancer should benefit from COVID-19 vaccination. Some of the most advanced vaccine candidates are mRNAs encapsulated into lipid carriers, and small liposomes are expected to accumulate in tumour tissues through the enhanced and permeation retention effect. However, to what extent solid tumours could take up a significant part of the vaccine dose as well remains unknown. This calls for a careful evaluation of the efficacy of these promising mRNA COVID-19 vaccines administered as lipid carriers for patients with solid tumours, including a possible re-appraisal of the dosing for optimal protection of this specific and frail population.


Assuntos
Vacinas contra COVID-19/administração & dosagem , COVID-19/prevenção & controle , Portadores de Fármacos , Neoplasias/terapia , SARS-CoV-2/imunologia , Aceleração , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , COVID-19/epidemiologia , Vacinas contra COVID-19/efeitos adversos , Portadores de Fármacos/normas , Fragilidade/epidemiologia , Fragilidade/terapia , Humanos , Programas de Imunização/normas , Lipossomos/administração & dosagem , Lipossomos/efeitos adversos , Neoplasias/epidemiologia , Neoplasias/imunologia , Pandemias , RNA Mensageiro/administração & dosagem , RNA Mensageiro/normas , Fatores de Tempo , Vacinação/métodos
4.
Value Health ; 24(10): 1391-1399, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34593161

RESUMO

OBJECTIVES: Incremental cost-effectiveness analyses may inform the optimal choice of healthcare interventions. Nevertheless, for many vaccines, benefits fluctuate with incidence levels over time. Reevaluating a vaccine after it has successfully decreased incidences may eventually cause a disease resurgence if switching to a vaccine with lower indirect benefits. Decisions may successively alternate between vaccines alongside repeated rises and falls in incidence and when indirect effects from historic use are ignored. Our suggested proposal aims to prevent suboptimal decision making. METHODS: We used a conceptual model of demand to illustrate alternating decisions between vaccines because of time-varying levels of indirect effects. Similar to the concept of subsidies, we propose internalizing the indirect effects achievable with vaccines. In a case study over 60 years, we simulated a hypothetical 10-year reevaluation of 2 oncogenic human papillomavirus vaccines, of which only 1 protects additionally against anogenital warts. RESULTS: Our case study showed that the vaccine with additional warts protection is initially valued higher than the vaccine without additional warts protection. After 10 years, this differential decreases because of declines in warts incidence, which supports switching to the nonwarts vaccine that causes a warts resurgence eventually. Instead, pricing the indirect effects separately supports continuing with the warts vaccine. CONCLUSIONS: Ignoring how the observed incidences depend on the indirect effects achieved with a particular vaccine may lead to repeated changes in vaccines at successive reevaluations, with unintended resurgences, economic inefficiencies, and eroding vaccine confidence. We propose internalizing indirect effects to prevent vaccines falling victim to their own success.


Assuntos
Análise Custo-Benefício/métodos , Programas de Imunização/métodos , Fatores de Tempo , Análise Custo-Benefício/estatística & dados numéricos , Humanos , Programas de Imunização/normas , Programas de Imunização/estatística & dados numéricos
5.
Value Health ; 24(11): 1543-1550, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34711354

RESUMO

OBJECTIVES: Amid a pandemic, vaccines represent a promising solution for mitigating public health and economic crises, and an improved understanding of individuals' vaccination intentions is crucial to design optimal immunization campaigns. This study predicts uptake rates for different COVID-19 vaccine specifications and identifies personal characteristics that moderate an individual's responsiveness to vaccine attributes. METHODS: We developed an online survey with contingent specifications of a COVID-19 vaccine, varying in effectiveness, risks of side effects, duration of immunity, and out-of-pocket cost. Using population-averaged logit models, we estimated vaccine uptake rates that account for uncertainty, heterogeneity across respondents, and interactions between vaccine and personal characteristics. RESULTS: We obtained 3047 completed surveys. The highest uptake rate for an annual vaccine, 62%, is predicted when vaccine effectiveness is 80% to 90%, side effects are minimal, and the vaccine is provided at zero cost, with decreases seen in the uptake rate for less effective vaccines, for example, 50% for 50% to 60% effectiveness. Moreover, we found that Americans' response to vaccine effectiveness depends on their self-reported concern, that is, concerned respondents report a higher willingness to get vaccinated. Our findings also indicate that COVID-19 vaccine uptake rates decrease with vaccine cost and that responsiveness to vaccine cost is moderated by income. CONCLUSIONS: Although providing the COVID-19 vaccine at zero cost will motivate many individuals to get vaccinated, a policy focused exclusively on vaccine cost may not be enough to reach herd immunity thresholds. Although those concerned with COVID-19 will participate, further evidence is needed on how to incentivize participation among the unconcerned (43%) to prevent further pandemic spread.


Assuntos
Movimento contra Vacinação/psicologia , Programas de Imunização/normas , Movimento contra Vacinação/tendências , COVID-19/prevenção & controle , Humanos , Programas de Imunização/métodos , Programas de Imunização/estatística & dados numéricos , Intenção , Motivação , Inquéritos e Questionários , Estados Unidos , Tratamento Farmacológico da COVID-19
6.
Reprod Health ; 18(1): 47, 2021 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-33622376

RESUMO

BACKGROUND: Integrating family planning into child immunization services may address unmet need for contraception by offering family planning information and services to postpartum women during routine child immunization visits. However, policies and programs promoting integration are often based on insubstantial or conflicting evidence about its effects on service delivery and health outcomes. While integration models vary, many studies measure integration as binary (a facility is integrated or not) rather than a multidimensional and varying continuum. It is thus challenging to ascertain the determinants and effects of integrated service delivery. This study creates Facility and Provider Integration Indexes, which measure capacity to support integrated family planning and child immunization services and applies them to analyze the extent of integration across 400 health facilities. METHODS: This study utilizes cross-sectional health facility (N = 400; 58% hospitals, 42% primary healthcare centers) and healthcare provider (N = 1479) survey data that were collected in six urban areas of Nigeria for the impact evaluation of the Nigerian Urban Reproductive Health Initiative. Principal Component Analysis was used to develop Provider and Facility Integration Indexes that estimate the extent of integration in these health facilities. The Provider Integration Index measures provider skills and practices that support integrated service delivery while the Facility Integration Index measures facility norms that support integrated service delivery. Index scores range from zero (low) to ten (high). RESULTS: Mean Provider Integration Index score is 5.42 (SD 3.10), and mean Facility Integration Index score is 6.22 (SD 2.72). Twenty-three percent of facilities were classified as having low Provider Integration scores, 32% as medium, and 45% as high. Fourteen percent of facilities were classified as having low Facility Integration scores, 38% as medium, and 48% as high. CONCLUSION: Many facilities in our sample have achieved high levels of integration, while many others have not. Results suggest that using more nuanced measures of integration may (a) more accurately reflect true variation in integration within and across health facilities, (b) enable more precise measurement of the determinants or effects of integration, and (c) provide more tailored, actionable information about how best to improve integration. Overall, results reinforce the importance of utilizing more nuanced measures of facility-level integration.


Assuntos
Prestação Integrada de Cuidados de Saúde , Serviços de Planejamento Familiar , Administração de Instituições de Saúde , Programas de Imunização , Serviços de Saúde Reprodutiva , Adulto , Criança , Pré-Escolar , Estudos Transversais , Prestação Integrada de Cuidados de Saúde/organização & administração , Prestação Integrada de Cuidados de Saúde/normas , Serviços de Planejamento Familiar/organização & administração , Serviços de Planejamento Familiar/normas , Serviços de Planejamento Familiar/provisão & distribuição , Feminino , Instalações de Saúde/normas , Administração de Instituições de Saúde/métodos , Administração de Instituições de Saúde/normas , Indicadores Básicos de Saúde , Humanos , Programas de Imunização/organização & administração , Programas de Imunização/normas , Programas de Imunização/provisão & distribuição , Lactente , Recém-Nascido , Masculino , Nigéria/epidemiologia , Gravidez , Saúde Reprodutiva/normas , Serviços de Saúde Reprodutiva/organização & administração , Serviços de Saúde Reprodutiva/normas , Serviços de Saúde Reprodutiva/provisão & distribuição , Inquéritos e Questionários , População Urbana/estatística & dados numéricos , Vacinação/métodos , Vacinação/estatística & dados numéricos
7.
Nurs Adm Q ; 45(3): 219-225, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34060505

RESUMO

The COVID-19 pandemic has overwhelmed communities. Physical, emotional, and financial struggles have heightened, especially with our vulnerable populations. People have been afraid to return to their provider's office. For children, there has been an interruption of well-visits and immunizations. As the nation saw a decline in immunization uptake, a pilot nurse-led program was designed to increase vaccinations and address the social determinant needs during a global pandemic. The purpose of this article is to describe the planning and implementation of a curbside immunization event. The Logic model was used as a framework to ensure an efficient and replicable process. Initial observations showed an overall increase in immunization uptake and 97% of participants current with recommended vaccinations. Most parents (93%) would attend again and recommend it to others. They also felt that infection control precautions helped make the care delivered safe and efficient. Social determinants of health were assessed and addressed. This method of vaccine delivery is a viable model going into the future. Others may replicate this model, and it may also serve as a platform regarding flu or COVID-19 vaccine distribution.


Assuntos
Imunização/enfermagem , Modelos de Enfermagem , Determinantes Sociais da Saúde/estatística & dados numéricos , Humanos , Imunização/estatística & dados numéricos , Programas de Imunização/métodos , Programas de Imunização/normas , Programas de Imunização/estatística & dados numéricos , Michigan , Projetos Piloto
8.
BMC Public Health ; 20(1): 1365, 2020 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-32894099

RESUMO

BACKGROUND: There has been significant recent prioritization and investment in the immunization program in Ethiopia. However, coverage rates have stagnated and remained low for many years, suggesting the presence of systemic barriers to implementation. Hence, there is a need to consolidate the existing knowledge, in order to address them and consequently improve program effectiveness. METHODS: A thorough literature review and Delphi method were used. In this review, we searched Pubmed/Medline, WHO library, Science direct, Cochrane library, Google scholar and Google using different combinations of search strategies. Studies that applied any study design, data collection and analysis methods related to immunization program were included. In the Delphi method, a panel of 28 national and international experts were participated to identify current evidence gaps and set research priorities under the immunization program. RESULTS: In this review, a total of 55 studies and national documents were included. The review showed that the vaccination coverage ranged from 20.6% in Afar to 91.7% in Amhara region with large inequities related to socio-economic, health service access and knowledge about vaccination across different settings. Only one study reported evidence on timeliness of immunization as 60%. The review revealed that 80% of health facilities provide immunization service nationally while service availability was only 2% in private health facilities. This review indicated that poor vaccine storage, vaccine shortage, service interruptions, poor defaulter tracing, low community engagement and poor documentation were the main barriers for the Expanded Program on Immunization with variations across different regions. Through expert panel of discussion using Delphi method, 10 priority research areas were identified across different domains of the immunization program at national level. CONCLUSION: We found out that there is substantial knowledge on vaccination coverage, however, there is little evidence on timeliness of vaccination. The existing barriers that affect full immunization coverage also varied from context to context which indicates there is a need to design and implement evidence based locally tailored interventions. This review also indicated evidence gaps with more focus on health system related implementation barriers at lower level and identified further research priorities in the immunization program of Ethiopia.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Implementação de Plano de Saúde , Programas de Imunização/normas , Cobertura Vacinal/estatística & dados numéricos , Técnica Delphi , Etiópia/epidemiologia , Humanos
9.
BMC Public Health ; 20(1): 999, 2020 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-32586316

RESUMO

Tuberculosis is the deadliest infection of our time. In contrast, about 11,000 people died of Ebola between 2014 and 2016. Despite this manifest difference in mortality, there is now a vaccine licensed in the United States and by the European Medicines Agency, with up to 100% efficacy against Ebola. The developments that led to the trialing of the Ebola vaccine were historic and unprecedented. The single licensed TB vaccine (BCG) has limited efficacy. There is a dire need for a more efficacious TB vaccine. To deploy such vaccines, trials are needed in sites that combine high disease incidence and research infrastructure. We describe our twelve-year experience building a TB vaccine trial site in contrast to the process in the recent Ebola outbreak. There are additional differences. Relative to the Ebola pipeline, TB vaccines have fewer trials and a paucity of government and industry led trials. While pathogens have varying levels of difficulty in the development of new vaccine candidates, there yet appears to be greater interest in funding and coordinating Ebola interventions. TB is a global threat that requires similar concerted effort for elimination.


Assuntos
Vacina BCG/uso terapêutico , Ensaios Clínicos como Assunto/normas , Surtos de Doenças/prevenção & controle , Programas de Imunização/normas , Tuberculose/prevenção & controle , África , Surtos de Doenças/estatística & dados numéricos , Vacinas contra Ebola , Doença pelo Vírus Ebola/epidemiologia , Humanos , Tuberculose/epidemiologia
10.
Euro Surveill ; 25(25)2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32613939

RESUMO

Sentinel surveillance of acute hospitalisations in response to infectious disease emergencies such as the 2009 influenza A(H1N1)pdm09 pandemic is well described, but recognition of its potential to supplement routine public health surveillance and provide scalability for emergency responses has been limited. We summarise the achievements of two national paediatric hospital surveillance networks relevant to vaccine programmes and emerging infectious diseases in Canada (Canadian Immunization Monitoring Program Active; IMPACT from 1991) and Australia (Paediatric Active Enhanced Disease Surveillance; PAEDS from 2007) and discuss opportunities and challenges in applying their model to other contexts. Both networks were established to enhance capacity to measure vaccine preventable disease burden, vaccine programme impact, and safety, with their scope occasionally being increased with emerging infectious diseases' surveillance. Their active surveillance has increased data accuracy and utility for syndromic conditions (e.g. encephalitis), pathogen-specific diseases (e.g. pertussis, rotavirus, influenza), and adverse events following immunisation (e.g. febrile seizure), enabled correlation of biological specimens with clinical context and supported responses to emerging infections (e.g. pandemic influenza, parechovirus, COVID-19). The demonstrated long-term value of continuous, rather than incident-related, operation of these networks in strengthening routine surveillance, bridging research gaps, and providing scalable public health response, supports their applicability to other countries.


Assuntos
Hospitais Pediátricos/estatística & dados numéricos , Programas de Imunização/normas , Admissão do Paciente/estatística & dados numéricos , Vigilância da População/métodos , Vacinação/efeitos adversos , Vacinas/administração & dosagem , Austrália/epidemiologia , Canadá/epidemiologia , Criança , Pré-Escolar , Confiabilidade dos Dados , Política de Saúde , Hospitalização/estatística & dados numéricos , Humanos , Programas Nacionais de Saúde/normas , Vigilância em Saúde Pública , Vacinação/estatística & dados numéricos
11.
J Public Health Manag Pract ; 26(2): 148-152, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31995547

RESUMO

OBJECTIVE: To determine the impact of using a person locator service to reduce undeliverable addresses for an immunization information system (IIS)-based reminder project. DESIGN: Return mail was compared at address-difference levels between original IIS addresses and updated addresses. SETTING: Minnesota residents were targeted for an immunization reminder postcard based on address. PARTICIPANTS: Both 11- and 12-year-olds with a Minnesota address in Minnesota's IIS. INTERVENTION: An immunization reminder postcard was mailed to households of participants. MAIN OUTCOME MEASURE(S): Reminder postcard return rates were tracked for address-difference levels between original IIS addresses and updated addresses. Return mail rates were track at the ZIP Code Tabulation Area (ZCTA) level and analyzed for demographic characteristic associations. RESULTS: Postcards had significantly lower odds of return when an address was confirmed (odds ratio [OR] = 0.09; 95% confidence interval [CI], 0.08-0.1; P < .001) or had major updates (OR = 0.47; 95% CI, 0.44-0.49; P < .001) than when no new address information was obtained. Significant, positive associations were found between return rate and both ZCTA-level poverty rate (γ = 0.235, P < .001) and ZCTA-level percentage of nonwhite residents (γ = 0.301, P < .001). CONCLUSIONS: Use of a person locator service is a promising method for reducing the barrier incorrect address information poses to successful reminder/recall notification. Implementation of person locator services could improve the data quality of address information in the IIS and success of outreach attempts by IIS users.


Assuntos
Programas de Imunização/normas , Imunização/psicologia , Sistemas de Alerta/normas , Criança , Estudos de Coortes , Feminino , Humanos , Imunização/normas , Imunização/estatística & dados numéricos , Programas de Imunização/métodos , Programas de Imunização/estatística & dados numéricos , Masculino , Minnesota , Sistemas de Alerta/estatística & dados numéricos
12.
Tuberk Toraks ; 68(3): 305-320, 2020 Sep.
Artigo em Turco | MEDLINE | ID: mdl-33295729

RESUMO

Pneumococcal infections are an important cause of mortality and morbidity in Chronic Lung Diseases. However, exacerbations, which make the treatment of diseases very difficult, and corticosteroids used during treatment carry a great risk of pneumococcal infection and adversely affect the treatment. The most rational way to reduce the negative impact of pneumococcal infections on the clinical and economic burden of Chronic Lung Diseases is vaccination of the risky population. Although, vaccination recommendations are well defined, recommended by national and international guidelines and are paid by health authorities, in Turkey, vaccination rates in adults with chronic lung disease is far below the expected. Since physicians are considered to be the most important and reliable resource that can guide their patients in vaccination, applying pneumococcal vaccination routinely in all patients with chronic lung diagnosis and making it a part of daily practice will greatly contribute to reducing the clinical and economic burden of pneumococcal infections in these patients. In this review, the effects of pneumococcal diseases on chronic lung diseases, the risk and clinical burden of pneumococcal diseases in chronic lung diseases are discussed in the light of guidelines and current literature, and the importance of protection from pneumonia in these patients is emphasized. In addition to general information and efficacy data about pneumococcal vaccines available in our country, application methods and access routes to vaccines are also described.


Assuntos
Infecções Pneumocócicas/prevenção & controle , Vacinas Pneumocócicas/uso terapêutico , Doença Pulmonar Obstrutiva Crônica/prevenção & controle , Vacinação/estatística & dados numéricos , Adulto , Humanos , Programas de Imunização/normas , Médicos de Atenção Primária/estatística & dados numéricos , Infecções Pneumocócicas/epidemiologia , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Fatores de Risco , Turquia
13.
Clin Infect Dis ; 68(10): 1769-1776, 2019 05 02.
Artigo em Inglês | MEDLINE | ID: mdl-30346524

RESUMO

Randomized, controlled trials are not always possible to evaluate interventions targeting infectious disease. This is frequently the case when evaluating the population-level impact of vaccines or when evaluating interventions aiming to increase vaccine uptake. Under such circumstances, an array of quasi-experimental designs is increasingly being used to evaluate the effects of vaccines on a wide range of morbidity and health service outcomes. These studies can provide valuable information on the impact of vaccination programs and other related interventions in real-world settings. Nevertheless, not all quasi-experimental designs are equal, and it is important that authors and readers are aware of their relative strengths and potential sources of bias. In this paper, we discuss what a quasi-experimental design is, when they might be used for vaccine evaluation, their strengths and limitations, and examples of their application.


Assuntos
Programas de Imunização , Ensaios Clínicos Controlados não Aleatórios como Assunto/métodos , Projetos de Pesquisa , Vacinas/normas , Pesquisa Biomédica , Humanos , Programas de Imunização/normas , Programas de Imunização/estatística & dados numéricos , Análise de Séries Temporais Interrompida , Vacinação
14.
Intern Med J ; 49(5): 662-665, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-31083800

RESUMO

Influenza vaccination is an important preventative health measure. A significant proportion of general medical inpatients meets indications for annual inactivated influenza vaccination (IIV), as recommended by the Australian National Immunisation Programme. This study explores opportunities to provide IIV to eligible general medical inpatients and associated barriers.


Assuntos
Programas de Imunização/tendências , Vacinas contra Influenza/uso terapêutico , Influenza Humana/epidemiologia , Influenza Humana/prevenção & controle , Admissão do Paciente/tendências , Vacinação/tendências , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , Estudos Transversais , Feminino , Humanos , Programas de Imunização/normas , Vacinas contra Influenza/normas , Influenza Humana/diagnóstico , Masculino , Vacinação/normas
15.
Bioethics ; 33(9): 1042-1049, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31389050

RESUMO

Political communities across the world have recently sought to tackle rising rates of vaccine hesitancy and refusal, by implementing coercive immunization programs, or by making existing immunization programs more coercive. Many academics and advocates of public health have applauded these policy developments, and they have invoked ethical reasons for implementing or strengthening vaccine mandates. Others have criticized these policies on ethical grounds, for undermining liberty, and as symptoms of broader government overreach. But such arguments often obscure or abstract away from the diverse values that are relevant to the ethical justifications of particular political communities' vaccine-mandate policies. We argue for an expansive conception of the normative issues relevant to deciding whether and how to establish or reform vaccine mandates, and we propose a schema by which to organize our thoughts about the ways in which different kinds of vaccine-mandate policies implicate various values.


Assuntos
Surtos de Doenças/prevenção & controle , Programas de Imunização/ética , Programas de Imunização/normas , Recusa do Paciente ao Tratamento/ética , Vacinação/ética , Vacinação/normas , Vacinas/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Política de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Saúde Pública
16.
Health Res Policy Syst ; 17(1): 51, 2019 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-31101060

RESUMO

BACKGROUND: Pakistan has one of the highest infant and child mortality rates in the world, half of these occurring due to vaccine-preventable diseases. The country started its Expanded Programme on immunisation (EPI) in 1978. However, the programme's performance is often questioned, as the Immunisation rates have been chronically low and on-time vaccination unsatisfactory. We explored the programme's insights about its structural and implementation arrangements within the larger governance system, and the ensuing challenges as well as opportunities. METHODS: We carried out a qualitative case study comprised of semi-structured, in-depth interviews with 34 purposively selected key informants from various tiers of immunisation policy and programme implementation. The interviews revolved around WHO's six building blocks of a health system, their interactions with EPI counterparts, and with the outer ecological factors. Interviews were transcribed and content analysed for emergent themes. RESULTS: The EPI faces several challenges in delivering routine immunisation (RI) to children, including lack of clarity on whether to provide vaccination through fixed centres or mobile teams, scarcity of human resource at various levels, lack of accurate population data, on-ground logistic issues, lack of a separate budget line for EPI, global pressure for polio, less priority to prevention by the policy, security risks for community-based activities, and community misconceptions about vaccines. CONCLUSIONS: The fulcrum for most of the challenges lies where EPI service delivery interacts with components of the broader health system. The activities for polio eradication have had implications for RI. Socio-political issues from the national and global environment also impact this system. The interplay of these factors, while posing challenges to effective implementation of RI, also brings opportunities for improvement. Collective effort from local, national and global stakeholders is required for improving the immunisation status of Pakistani children, global health security and the sustainable development goals.


Assuntos
Saúde da Criança , Atenção à Saúde/normas , Programas Governamentais/normas , Programas de Imunização/normas , Avaliação de Programas e Projetos de Saúde , Vacinação , Doenças Preveníveis por Vacina/prevenção & controle , Criança , Mortalidade da Criança , Participação da Comunidade , Tomada de Decisões , Atenção à Saúde/métodos , Países em Desenvolvimento , Saúde Global , Conhecimentos, Atitudes e Prática em Saúde , Política de Saúde , Humanos , Imunização , Lactente , Mortalidade Infantil , Paquistão/epidemiologia , Poliomielite/prevenção & controle , Pesquisa Qualitativa , Melhoria de Qualidade , Doenças Preveníveis por Vacina/epidemiologia , Vacinas
17.
J Public Health Manag Pract ; 25(3): E19-E26, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29889179

RESUMO

CONTEXT: Since 2007, 2 doses of varicella vaccine have been routinely recommended, with a catch-up second dose recommended for those who received only 1 prior dose. OBJECTIVE: To examine varicella vaccination coverage with 2 or more doses and the proportions of adolescents with evidence of immunity to varicella (≥2 doses of vaccine or varicella history) during 2007-2014. To assess timing of second-dose receipt, factors associated with 2 or more vaccine doses, and missed second-dose opportunities during 2014. DESIGN, SETTING, AND PARTICIPANTS: We used data from the 2007-2014 National Immunization Survey-Teen (NIS-Teen), which collects information on adolescents aged 13 to 17 years in the United States. RESULTS: From 2007 to 2014, varicella vaccination coverage with 2 or more doses increased from 8.3% to 66.9% in 13- to 15-year-olds and from 3.6% to 56.7% in 16- to 17-year-olds. The proportions with evidence of immunity also increased from 68.0% to 84.1% (13- to 15-year-olds) and 78.6% to 83.4% (16- to 17-year-olds). In 2014, 13.4% of 13- to 15-year-olds and 3.2% of 16- to 17-year-olds had received their second dose at 4 to 6 years of age. Factors most significantly associated with lower coverage with 2 or more doses were not having an 11- to 12-year well-child visit, not receiving an adolescent vaccine, and residence in a state with no 2-dose immunization school entry requirement. Seventy-seven percent of 1-dose vaccinated adolescents had 1 or more missed opportunities to receive their second dose; if were they not missed, 2-dose coverage would have increased from 79.5% to 94.8%. CONCLUSIONS: Levels of varicella vaccination coverage with 2 or more doses and the proportion of adolescents with evidence of immunity increased from 2007 to 2014, though 16% lacked evidence of immunity in 2014. Although catch-up campaigns have succeeded, missed vaccination opportunities persist.


Assuntos
Vacina contra Varicela/uso terapêutico , Varicela/prevenção & controle , Programas de Imunização/normas , Vacinação/normas , Adolescente , Varicela/tratamento farmacológico , Vacina contra Varicela/administração & dosagem , Vacina contra Varicela/efeitos adversos , Feminino , Herpesvirus Humano 3/efeitos dos fármacos , Herpesvirus Humano 3/patogenicidade , Humanos , Programas de Imunização/métodos , Programas de Imunização/tendências , Masculino , Inquéritos e Questionários , Estados Unidos , Vacinação/estatística & dados numéricos
18.
Epidemiology ; 29(2): 215-223, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29087989

RESUMO

BACKGROUND: There are few estimates of the effectiveness of long-standing vaccination programs in developed countries. To fill this gap, we investigate the direct and indirect effectiveness of childhood vaccination programs on mortality at the population level in the Netherlands. METHODS: We focused on three communicable infectious diseases, diphtheria, pertussis, and poliomyelitis, for which we expect both direct and indirect effects. As a negative control, we used tetanus, a noncommunicable infectious disease for which only direct effects are anticipated. Mortality data from 1903 to 2012 were obtained from Statistics Netherlands. Vaccination coverage data were obtained from various official reports. For the birth cohorts 1903 through 1975, all-cause and cause-specific childhood mortality burden was estimated using restricted mean lifetime survival methods, and a model was used to describe the prevaccination decline in burden. By projecting model results into the vaccination era, we obtained the expected burden without vaccination. Program effectiveness was estimated as the difference between observed and expected mortality burden. RESULTS: Each vaccination program showed a high overall effectiveness, increasing to nearly 100% within 10 birth cohorts. For diphtheria, 14.9% (95% uncertainty interval [UI] = 12.3%, 17.6%) of mortality burden averted by vaccination was due to indirect protection. For pertussis, this was 32.1% (95% UI = 31.3%, 32.8%). No indirect effects were observed for poliomyelitis or tetanus with -2.4% (UI = -16.7%, 7.1%) and 0.6% (UI = -17.9%, 10.7%), respectively. CONCLUSION: Vaccination programs for diphtheria and pertussis showed substantial indirect effects, providing evidence for herd protection.


Assuntos
Programas de Imunização/normas , Vigilância da População , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Infecções Bacterianas/prevenção & controle , Criança , Pré-Escolar , Bases de Dados Factuais , Infecções por Enterovirus/prevenção & controle , Humanos , Lactente , Pessoa de Meia-Idade , Modelos Estatísticos , Mortalidade/tendências , Países Baixos , Avaliação de Programas e Projetos de Saúde , Adulto Jovem
19.
Virol J ; 15(1): 129, 2018 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-30115083

RESUMO

BACKGROUND: Epidemiological studies have established human papillomavirus (HPV) infection as the central cause of invasive cervical cancer (ICC) and its precursor lesions. HIV is associated with a higher prevalence and persistence of a broader range of high-risk HPV genotypes, which in turn results in a higher risk of cervical disease. Recent WHO HPV vaccination schedule recommendations, along with the roll out of HAART at an earlier CD4 count within the female HIV-infected population, may have programmatic implications for sub Saharan Africa. This communication identifies research areas, which will need to be addressed for determining a HPV vaccine schedule for this population in sub Saharan Africa. A review of WHO latest recommendations and the evidence concerning one-dose HPV vaccine schedules was undertaken. CONCLUSION: For females ≥15 years at the time of first dose and immunocompromised and/or HIV-infected, a 3-dose schedule (0, 1-2, 6 months) is recommended for all three vaccines. There is some evidence that there is similar protection against HPV 16 and 18 infection from a single vaccination than from two or three doses, however there is no cross protection conferred to other genotypes. There is a need for periodic prevalence studies to determine the vaccination coverage of bivalent, quadrivalent and nonavalent vaccine targeted oncogenic HPV genotypes in women with CIN 3 or ICC at national level. In light of the increasing number of sub Saharan HIV-infected girls initiating HAART at a CD4 count above 350 mm3, there are a number of clinical, virological and public health research gaps to address before a tailored vaccine schedule can be established for this population.


Assuntos
Infecções por HIV/complicações , Programas de Imunização/normas , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/administração & dosagem , Vacinação/normas , Adolescente , África Subsaariana/epidemiologia , Alphapapillomavirus/imunologia , Terapia Antirretroviral de Alta Atividade , Criança , Proteção Cruzada , Esquema de Medicação , Monitoramento Epidemiológico , Feminino , Guias como Assunto , Infecções por HIV/tratamento farmacológico , Humanos , Programas de Imunização/economia , Infecções por Papillomavirus/epidemiologia , Vacinação/economia , Adulto Jovem
20.
BMC Infect Dis ; 18(1): 567, 2018 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-30428846

RESUMO

BACKGROUND: Prior to the 2009 pandemic H1N1, and the unprecedented outbreak of Highly Pathogenic Avian Influenza (HPAI) caused by the H5N1 virus, the World Health Organization (WHO) called upon its Member States to develop preparedness plans in response to a new pandemic in humans. The WHO Member States responded to this call by developing national pandemic plans in accordance with the International Health Regulations (IHR) to strengthen the capabilities of Member States to respond to different pandemic scenarios. In this study, we aim to evaluate the quality of the preparedness plans in the WHO African region since their inception in 2005. METHODS: A standard checklist with 61 binary indicators ("yes" or "no") was used to assess the quality of the preparedness plans. The checklist was categorised across seven thematic areas of preparedness: preparation (16 indicators); coordination and partnership (5 indicators); risk communication (8 indicators); surveillance and monitoring (7 indicators); prevention and containment (10 indicators); case investigation and treatment (10 indicators) and ethical consideration (5 indicators). Four assessors independently scored the plans against the checklist. RESULTS: Of the 47 countries in the WHO African region, a total of 35 national pandemic plans were evaluated. The composite score for the completeness of the pandemic plans across the 35 countries was 36%. Country-specific scores on each of the thematic indicators for pandemic plan completeness varied, ranging from 5% in Côte d'Ivoire to 79% in South Africa. On average, preparation and risk communication scored 48%, respectively, while coordination and partnership scored the highest with an aggregate score of 49%. Surveillance and monitoring scored 34%, while prevention and containment scored 35%. Case investigation and treatment scored 25%, and ethical consideration scored the lowest of 14% across 35 countries. Overall, our assessment shows that pandemic preparedness plans across the WHO African region are inadequate. CONCLUSIONS: Moving forward, these plans must address the gaps identified in this study and demonstrate clarity in their goals that are achievable through drills, simulations and tabletop exercises.


Assuntos
Lista de Checagem , Planejamento em Desastres/organização & administração , Surtos de Doenças/prevenção & controle , Influenza Humana/epidemiologia , Pandemias/prevenção & controle , Organização Mundial da Saúde/organização & administração , África/epidemiologia , Lista de Checagem/métodos , Lista de Checagem/normas , Planejamento em Desastres/métodos , Planejamento em Desastres/normas , Implementação de Plano de Saúde/organização & administração , Implementação de Plano de Saúde/normas , Humanos , Programas de Imunização/organização & administração , Programas de Imunização/normas , Vírus da Influenza A Subtipo H1N1/imunologia , Virus da Influenza A Subtipo H5N1/imunologia , Vacinas contra Influenza/uso terapêutico , Influenza Humana/prevenção & controle , Projetos de Pesquisa , Cobertura Vacinal/organização & administração , Cobertura Vacinal/normas
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