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1.
BMJ Glob Health ; 7(Suppl 4)2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35764354

RESUMO

The WHO Eastern Mediterranean Region (EMR) is characterised by a large range in routine immunisation coverage. We reviewed progress in access, deployment efforts, and use of COVID-19 vaccines in the EMR to identify bottlenecks and propose recommendations. We compiled and analysed data reported to WHO regarding the number of vaccines provided emergency use authorisation (EUA) in each country, the number of vaccine doses allocated and delivered by COVAX, the number of vaccine doses received bilaterally, the date of initiation of vaccination, vaccine usage rate and overall vaccination coverage. In June-July and October-November 2021, we conducted two rounds of a regional survey to assess vaccine acceptance and calculated the weighted proportion of individuals who would get vaccinated once a vaccine is available and recommended. We stratified the analysis according to four groups based on their participation status in COVAX, from the highest to lowest income, that is, (1) fully self-financing high-income countries (group 1), (2) fully self-financing upper middle-income countries (group 2), (3) Advance Market Commitment (AMC) countries not eligible to receive Gavi support (group 3) and (4) AMC countries eligible for Gavi support (group 4). As of 31 December 2021, the median number of vaccines provided with EUA was 6 for group 1, 11 for group 2, 8 for group 3 and 9 for group 4. On the same date, COVAX had delivered 179 793 310 doses to EMR countries. Vaccination started on 10 December 2020 in group 1, on 13 December 2020 in group 2, on 30 December 2020 in group 3 and on 20 January 2021 in group 4. The regional acceptance survey (first round) pointed to higher vaccine acceptance in group 1 (96%), than in others, including group 2 (73.9%), group 3 (78.8%) and group 4 (79.3%), with identical patterns in the second round (98%, 78%, 84% and 76%), respectively. Usage of vaccine allocated by COVAX to participating countries was 89% in group 1, 75% in group 2, 78% in group 3 and 42% in group 4. The full dose and partial dose coverage decreased with the income groups of countries, from 70% and 6% in group 1, to 43% and 8% in group 2, to 33% and 11% in group 3, and 20% and 8% in group 4. All 22 EMR countries introduced COVID-19 vaccines by 21 April 2021, but with major inequities in coverage. Additional efforts are needed to address the determinants of unequal vaccine coverage at all stages of the result chain to improve vaccine equity.


Assuntos
COVID-19 , Vacinas , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Humanos , Programas de Imunização , Organização Mundial da Saúde
3.
Health Res Policy Syst ; 18(1): 116, 2020 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-33023599

RESUMO

BACKGROUND: Countries are transitioning assets and functions from polio eradication to integrated immunization and surveillance activities. We assessed the extent of linkages between and perceptions of National Immunization Technical Advisory Groups (NITAGs) and National Certification Committees (NCCs) for polio eradication to understand how linkages can be leveraged to improve efficiencies of these expert bodies. METHODS: During May 2017 to May 2018, we administered a 15-question survey to a NITAG chair or member and an NCC counterpart in all countries of the WHO Regions for Africa (AFR) and for the Eastern Mediterranean (EMR) that had both a NITAG and an NCC. Data were analysed using frequency distributions. RESULTS: Of countries with both a NITAG and an NCC (n = 44), the response rate was 92% (22/24) in AFR and 75% (15/20) in EMR. Some respondents reported being very familiar with the functions of the other technical bodies, 36% (8/22) for NITAG members and 38% (14/37) for NCC members. Over 85% (51/59) of respondents felt it was somewhat useful or very useful to strengthen ties between bodies. Nearly all respondents (98%, 58/59) felt that NCC expertise could inform measles and rubella elimination programmes. CONCLUSIONS: We observed a broad consensus that human resource assets of NCCs may serve an important technical role to support national immunization policy-making. At this stage of the polio eradication initiative, countries should consider how to integrate the technical expertise of NCC members to reinforce NITAGs and maintain the polio essential functions, beginning in countries that have been polio-free for several years.


Assuntos
Programas de Imunização , Poliomielite , Comitês Consultivos , África , Certificação , Política de Saúde , Humanos , Imunização , Poliomielite/prevenção & controle
4.
Value Health Reg Issues ; 15: 112-119, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29698864

RESUMO

OBJECTIVES: To estimate the cost effectiveness of introducing the quadrivalent human papillomavirus (HPV) vaccine into the national immunization program of Iran. METHODS: The CERVIVAC cost-effectiveness model was used to calculate incremental cost per averted disability-adjusted life-year by vaccination compared with no vaccination from both governmental and societal perspectives. Calculations were based on epidemiologic parameters from the Iran National Cancer Registry and other national data sources as well as from literature review. We estimated all direct and indirect costs of cervical cancer treatment and vaccination program. All future costs and benefits were discounted at 3% per year and deterministic sensitivity analysis was used. RESULTS: During a 10-year period, HPV vaccination was estimated to avert 182 cervical cancer cases and 20 deaths at a total vaccination cost of US $23,459,897; total health service cost prevented because of HPV vaccination was estimated to be US $378,646 and US $691,741 from the governmental and societal perspective, respectively. Incremental cost per disability-adjusted life-year averted within 10 years was estimated to be US $15,205 and US $14,999 from the governmental and societal perspective, respectively, and both are higher than 3 times the gross domestic product per capita of Iran (US $14,289). Sensitivity analysis showed variation in vaccine price, and the number of doses has the greatest volatility on the incremental cost-effectiveness ratio. Using a two-dose vaccination program could be cost-effective from the societal perspective (incremental cost-effectiveness ratio = US $11,849). CONCLUSIONS: Introducing a three-dose HPV vaccination program is currently not cost-effective in Iran. Because vaccine supplies cost is the most important parameter in this evaluation, considering a two-dose schedule or reducing vaccine prices has an impact on final conclusions.


Assuntos
Análise Custo-Benefício , Vacina Quadrivalente Recombinante contra HPV tipos 6, 11, 16, 18/administração & dosagem , Modelos Estatísticos , Vacinação , Criança , Feminino , Gastos em Saúde , Vacina Quadrivalente Recombinante contra HPV tipos 6, 11, 16, 18/economia , Humanos , Programas de Imunização , Infecções por Papillomavirus/economia , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Anos de Vida Ajustados por Qualidade de Vida , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle
5.
Vaccine ; 33 Suppl 1: A182-91, 2015 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-25919159

RESUMO

INTRODUCTION: Pneumonia is one of the most important causes of morbidity and mortality in children under 5 in Egypt, and the Ministry of Health of Egypt is considering introducing pneumococcal conjugate vaccine (PCV) in its national immunization program. We performed an economic analysis to evaluate the cost-effectiveness of this vaccine in Egypt and to provide the decision-makers with needed evidence. METHODS: The analysis was done using the TRIVAC model. Data included demographic characteristics, burden of disease, coverage and efficacy of the vaccine, health resource utilization, and costs of pneumococcal disease vaccination and treatment. Whenever possible, we used national or regional data. Two alternatives were compared: (1) general vaccination of children younger than 5 years with the 13-valent pneumococcal conjugate vaccine (PCV13), using a three-dose schedule without booster, and (2) no vaccination. Outcomes of 10 cohorts from birth to 5 years were analyzed. The study was performed from the governmental perspective and selected public health providers. RESULTS: In comparison to no vaccine, the introduction of PCV13 would be cost-effective, with an incremental cost-effectiveness ratio of US$ 3916 per disability-adjusted life-year (DALY) averted (government perspective). The total incremental cost of the PCV vaccination program (10 cohorts) would be approximately US$ 1.09 billion. Over the 10 cohorts, the program would avert 8583 pneumococcal deaths - 42% of all pneumococcal-related deaths. CONCLUSION: The introduction of PCV13 would be a good value for money from the government perspective. It would represent a high-impact public health intervention for Egypt and respond to the National Immunization Technical Advisory Group (NITAG) resolution on reducing pneumonia burden and overall child mortality. Strengthening surveillance will be critical to generating high-quality national data, improving future economic analyses that support evidence-based decisions for introducing vaccines and public health interventions, and to monitoring their impact.


Assuntos
Infecções Pneumocócicas/economia , Infecções Pneumocócicas/prevenção & controle , Vacinas Pneumocócicas/economia , Vacinas Pneumocócicas/imunologia , Vacinação/economia , Pré-Escolar , Análise Custo-Benefício , Egito/epidemiologia , Política de Saúde , Humanos , Programas de Imunização , Lactente , Recém-Nascido , Modelos Estatísticos , Infecções Pneumocócicas/epidemiologia , Vacinas Pneumocócicas/administração & dosagem , Vacinação/métodos
6.
Vaccine ; 33 Suppl 1: A192-200, 2015 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-25919160

RESUMO

BACKGROUND: Although the mortality from diarrheal diseases has been decreasing dramatically in Iran, it still represents an important proportion of disease burden in children <5 years old. Rotavirus vaccines are among the most effective strategies against diarrheal diseases in specific epidemiological conditions. This study aimed to evaluate the cost-effectiveness of the introduction of rotavirus vaccine (3 doses of pentavalent RotaTeq (RV5)) in Iran, from the viewpoints of Iran's health system and society. METHODS: The TRIVAC decision support model was used to calculate total incremental costs, life years (LYs) gained, and disability-adjusted life years (DALYs) averted due to the vaccination program. Necessary input data were collected from the most valid accessible sources as well as a systematic review and meta-analysis on epidemiological studies. We used WHO guidelines to estimate vaccination cost. An annual discount rate of 3% was considered for both health gain and costs. A deterministic sensitivity analysis was performed for testing the robustness of the models results. RESULTS: Our results indicated that total DALYs potentially lost due to rotavirus diarrhea within 10 years would be 138,161, of which 76,591 could be prevented by rotavirus vaccine. The total vaccination cost for 10 cohorts was estimated to be US$ 499.91 million. Also, US$ 470.61 million would be saved because of preventing outpatient visits and inpatient admissions (cost-saving from the society perspective). We estimated a cost per DALY averted of US$ 2868 for RV5 vaccination, which corresponds to a highly cost-effective strategy from the government perspective. In the sensitivity analysis, all scenarios tested were still cost-saving or highly cost-effective from the society perspective, except in the least favorable scenario and low vaccine efficacy and disease incidence scenario. CONCLUSION: Based on the findings, introduction of rotavirus vaccine is a highly cost-effective strategy from the government perspective. Introducing the vaccine to the national immunization program is an efficient use of available funds to reduce child mortality and morbidity in Iran.


Assuntos
Infecções por Rotavirus/economia , Infecções por Rotavirus/prevenção & controle , Vacinas contra Rotavirus/economia , Vacinas contra Rotavirus/imunologia , Vacinação/economia , Pré-Escolar , Análise Custo-Benefício , Diarreia/economia , Diarreia/epidemiologia , Diarreia/prevenção & controle , Política de Saúde , Humanos , Programas de Imunização , Lactente , Recém-Nascido , Irã (Geográfico)/epidemiologia , Modelos Estatísticos , Infecções por Rotavirus/epidemiologia , Vacinas contra Rotavirus/administração & dosagem , Vacinação/métodos , Vacinas Atenuadas/administração & dosagem , Vacinas Atenuadas/economia , Vacinas Atenuadas/imunologia
7.
Vaccine ; 26(51): 6727-34, 2008 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-18625279

RESUMO

A long standing question related to immunization financing and sustainability has been whether the existence of a specific line item for vaccines purchasing within the national health budget can contribute significantly to increasing national government financing of vaccines and routine immunizations. Based on immunization financing indicators from 185 countries collected through the joint WHO and UNICEF monitoring system, this paper attempts to answer this policy question. The study will present findings related to the status of countries that have such specific budget lines for purchasing vaccines and the levels of national budgetary allocation to the financing of vaccines and immunizations, particularly in low-income countries. The analysis shows evidence that the existence ofa specific line in the national budget is associated with increased governmental budget allocations for vaccines and routine immunization financing.


Assuntos
Orçamentos/tendências , Financiamento Governamental/economia , Política de Saúde/economia , Programas de Imunização/economia , Financiamento Governamental/tendências , Política de Saúde/tendências , Humanos , Programas de Imunização/tendências , Nações Unidas , Vacinas/economia , Organização Mundial da Saúde
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