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1.
J Infect Dis ; 216(suppl_1): S244-S249, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28838165

RESUMO

Background: The Polio Eradication and Endgame Strategic Plan (PEESP) established a target that at least 50% of the time of personnel receiving funding from the Global Polio Eradication Initiative (GPEI) for polio eradication activities (hereafter, "GPEI-funded personnel") should be dedicated to the strengthening of immunization systems. This article describes the self-reported profile of how GPEI-funded personnel allocate their time toward immunization goals and activities beyond those associated with polio, the training they have received to conduct tasks to strengthen routine immunization systems, and the type of tasks they have conducted. Methods: A survey of approximately 1000 field managers of frontline GPEI-funded personnel was conducted by Boston Consulting Group in the 10 focus countries of the PEESP during 2 phases, in 2013 and 2014, to determine time allocation among frontline staff. Country-specific reports on the training of GPEI-funded personnel were reviewed, and an analysis of the types of tasks that were reported was conducted. Results: A total of 467 managers responded to the survey. Forty-seven percent of the time (range, 23%-61%) of GPEI-funded personnel was dedicated to tasks related to strengthening immunization programs, other than polio eradication. Less time was spent on polio-associated activities in countries that had already interrupted wild poliovirus (WPV) transmission, compared with findings for WPV-endemic countries. All countries conducted periodic trainings of the GPEI-funded personnel. The types of non-polio-related tasks performed by GPEI-funded personnel varied among countries and included surveillance, microplanning, newborn registration and defaulter tracing, monitoring of routine immunization activities, and support of district immunization task teams, as well as promotion of health behaviors, such as clean-water use and good hygiene and sanitation practices. Conclusion: In all countries, GPEI-funded personnel perform critical tasks in the strengthening of routine immunization programs and the control of measles and rubella. In certain countries with very weak immunization systems, GPEI-funded personnel provide critical support for the immunization programs, and sudden discontinuation of their employment would potentially disrupt the immunization programs in their countries and create a setback in capacity and effectiveness that would put children at higher risk for vaccine-preventable diseases.


Assuntos
Erradicação de Doenças/organização & administração , Erradicação de Doenças/estatística & dados numéricos , Programas de Imunização/organização & administração , Programas de Imunização/estatística & dados numéricos , Poliomielite/prevenção & controle , Humanos , Entrevistas como Assunto , Vacinação em Massa , Vigilância em Saúde Pública , Inquéritos e Questionários
2.
J Infect Dis ; 216(suppl_1): S226-S236, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28838180

RESUMO

Background: To monitor immunization-system strengthening in the Polio Eradication Endgame Strategic Plan 2013-2018 (PEESP), the Global Polio Eradication Initiative identified 1 indicator: 10% annual improvement in third dose of diphtheria- tetanus-pertussis-containing vaccine (DTP3) coverage in polio high-risk districts of 10 polio focus countries. Methods: A multiagency team, including staff from the African Region, developed a comprehensive list of outcome and process indicators measuring various aspects of the performance of an immunization system. Results: The development and implementation of the dashboard to assess immunization system performance allowed national program managers to monitor the key immunization indicators and stratify by high-risk and non-high-risk districts. Discussion: Although only a single outcome indicator goal (at least 10% annual increase in DTP3 coverage achieved in 80% of high-risk districts) initially existed in the endgame strategy, we successfully added additional outcome indicators (eg, decreasing the number of DTP3-unvaccinated children) as well as program process indicators focusing on cold chain, stock availability, and vaccination sessions to better describe progress on the pathway to raising immunization coverage. Conclusion: When measuring progress toward improving immunization systems, it is helpful to use a comprehensive approach that allows for measuring multiple dimensions of the system.


Assuntos
Erradicação de Doenças/métodos , Programas de Imunização/métodos , Programas de Imunização/estatística & dados numéricos , Imunização/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde/métodos , Poliomielite/prevenção & controle , Vigilância em Saúde Pública/métodos , África , Humanos
3.
J Infect Dis ; 216(suppl_1): S250-S259, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28838187

RESUMO

Nine polio areas of expertise were applied to broader immunization and mother, newborn and child health goals in ten focus countries of the Polio Eradication Endgame Strategic Plan: policy & strategy development, planning, management and oversight (accountability framework), implementation & service delivery, monitoring, communications & community engagement, disease surveillance & data analysis, technical quality & capacity building, and partnerships. Although coverage improvements depend on multiple factors and increased coverage cannot be attributed to the use of polio assets alone, 6 out of the 10 focus countries improved coverage in three doses of diphtheria tetanus pertussis containing vaccine between 2013 and 2015. Government leadership, evidence-based programming, country-driven comprehensive operational annual plans, community partnership and strong accountability systems are critical for all programs and polio eradication has illustrated these can be leveraged to increase immunization coverage and equity and enhance global health security in the focus countries.


Assuntos
Erradicação de Doenças , Programas de Imunização , Imunização/estatística & dados numéricos , Poliomielite/prevenção & controle , Saúde Global , Humanos
4.
Vaccine ; 35(17): 2148-2154, 2017 04 19.
Artigo em Inglês | MEDLINE | ID: mdl-28364923

RESUMO

Vaccination rates have improved in many countries, yet immunization inequities persist within countries and the poorest communities often bear the largest burden of vaccine preventable disease. Madagascar has one of the world's largest equity gaps in immunization rates. Barriers to immunization include immunization supply chain, human resources, and service delivery to reflect the health system building blocks, which affect poor rural communities more than affluent communities. The Reaching Every District (RED) approach was revised to address barriers and bottlenecks. This approach focuses on the provision of regular services, including making cold chain functional. This report describes Madagascar's inequities in immunization, its programmatic causes and the country's plans to address barriers to immunization in the poorest regions in the country. METHODS: Two cross-sectional health facility surveys conducted in November and December 2013 and in March 2015 were performed in four regions of Madagascar to quantify immunization system barriers. FINDINGS: Of the four regions studied, 26-33% of the population live beyond 5km (km) of a health center. By 2015, acceptable (fridges stopped working for less than 6days) cold chains were found in 52-80% of health facilities. Only 10-57% of health centers had at least two qualified health workers. Between 65% and 95% of planned fixed vaccination sessions were conducted and 50-88% of planned outreach sessions were conducted. The proportion of planned outreach sessions that were conducted increased between the two surveys. CONCLUSION: Madagascar's immunization program faces serious challenges and those affected most are the poorest populations. Major inequities in immunization were found at the subnational level and were mainly geographic in nature. Approaches to improve immunization systems need to be equitable. This may include the replacement of supply chain equipment with those powered by sustainable energy sources, monitoring its functionality at health facility level and vaccination services in all communities.


Assuntos
Armazenamento de Medicamentos/métodos , Acessibilidade aos Serviços de Saúde , Programas de Imunização , Refrigeração/métodos , Vacinas/provisão & distribuição , Estudos Transversais , Humanos , Madagáscar
5.
J Infect Dis ; 204 Suppl 1: S18-23, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21666160

RESUMO

BACKGROUND: The Millennium Development Goal 4 (MDG4) to reduce mortality in children aged <5 years by two-thirds from 1990 to 2015 has made substantial progress. We describe the contribution of measles mortality reduction efforts, including those spearheaded by the Measles Initiative (launched in 2001, the Measles Initiative is an international partnership committed to reducing measles deaths worldwide and is led by the American Red Cross, the Centers for Disease Control and Prevention, UNICEF, the United Nations Foundation, and the World Health Organization). METHODS: We used published data to assess the effect of measles mortality reduction on overall and disease-specific global mortality rates among children aged <5 years by reviewing the results from studies with the best estimates on causes of deaths in children aged 0-59 months. RESULTS: The estimated measles-related mortality among children aged <5 years worldwide decreased from 872,000 deaths in 1990 to 556,000 in 2001 (36% reduction) and to 118,000 in 2008 (86% reduction). All-cause mortality in this age group decreased from >12 million in 1990 to 10.6 million in 2001 (13% reduction) and to 8.8 million in 2008 (28% reduction). Measles accounted for about 7% of deaths in this age group in 1990 and 1% in 2008, equal to 23% of the global reduction in all-cause mortality in this age group from 1990 to 2008. CONCLUSIONS: Aggressive efforts to prevent measles have led to this remarkable reduction in measles deaths. The current funding gap and insufficient political commitment for measles control jeopardizes these achievements and presents a substantial risk to achieving MDG4.


Assuntos
Mortalidade da Criança/tendências , Mortalidade Infantil/tendências , Vacina contra Sarampo/administração & dosagem , Sarampo/mortalidade , Pré-Escolar , Saúde Global , Humanos , Lactente , Recém-Nascido , Sarampo/prevenção & controle , Vigilância da População , Fatores de Tempo , Vacinação
6.
J Infect Dis ; 204 Suppl 1: S190-7, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21666161

RESUMO

BACKGROUND: In 2000, reuse of disposable syringes and inadequately sterilized syringes resulted in 39% of all injections being unsafe, causing 22 million infections. We describe the contribution of measles supplemental immunization activities (SIAs) and Global Alliance for Vaccines and Immunisation (GAVI) funding in replacing disposable and sterilizable syringes with auto-disable (AD) syringes to improve injection safety in 39 African countries. METHODS: We assessed trends in nationwide introduction of AD syringes against measles catch-up SIAs and GAVI funding using World Health Organization/United Nations Children's Fund (UNICEF) Joint Reporting Form for Immunization and UNICEF supply data. RESULTS: In 19 (49%) of 39 countries, the measles program catalyzed the introduction of injection safety equipment, including AD syringes and safety boxes, training, and procurement of safety equipment during SIAs. GAVI was catalytic through financial support in 14 countries (36%) for including safe injection equipment in routine immunization. Additionally, GAVI funded 21 countries that had already introduced AD syringes in their national program. UNICEF AD syringe shipments to sub-Saharan Africa increased from 11 million to 461 million from 1997 to 2008. All 39 countries stopped using sterilizable syringes by 2004. CONCLUSIONS: The measles mortality reduction program and GAVI complemented each other in improving injection safety. All countries continued with AD syringes for immunization after measles catch-up SIAs and GAVI funding ended.


Assuntos
Equipamentos Descartáveis , Vacina contra Sarampo/administração & dosagem , Sarampo/prevenção & controle , Seringas/efeitos adversos , Financiamento Governamental/economia , Saúde Global , Humanos , Programas de Imunização/economia , Programas de Imunização/provisão & distribuição , Injeções/efeitos adversos , Sarampo/epidemiologia , Eliminação de Resíduos de Serviços de Saúde , Seringas/provisão & distribuição , Nações Unidas
7.
Environ Monit Assess ; 175(1-4): 501-17, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20559714

RESUMO

Chemical and isotopic (δ13C and δ15N) investigation of the Mandovi estuary along the Indian west coast affected strongly by the seasonal monsoon cycle was carried out. The Mandovi estuary is a major waterway for Goa and extensively used for transportation of iron and manganese ore. In addition, with large population centers as well as agricultural fields located on its shores, the estuary is assumed to have been influenced by human activities. Measurements of chemical and isotopic parameters made in the lower part of the estuary during the southwest (SW) monsoon and post-monsoon seasons reveal distinct changes, and it is observed that despite considerable enrichment of macronutrients during the SW monsoon, productivity of the estuary (phytoplankton biomass), as inferred from the chlorophyll-a content, is not as high as expected. This is due to occurrences of high turbidity and cloud cover that limits photosynthetic productivity. The isotopic characterization (C and N isotopes) of suspended organic matter produced/transported during the monsoon and post-monsoon seasons of year 2007 provides a baseline dataset for future isotopic studies in such type of tropical estuaries.


Assuntos
Isótopos de Carbono/análise , Monitoramento Ambiental/métodos , Isótopos de Nitrogênio/análise , Clorofila/análise , Índia
8.
Mar Environ Res ; 70(3-4): 272-82, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20547419

RESUMO

Nutrient characteristics of four water masses in the light of their thermohaline properties are examined in the eastern Equatorial Indian Ocean during winter, spring and summer monsoon. The presence of low salinity water mass with "Surface enrichments" of inorganic nutrients was observed relative to 20 m in the mixed layer. Lowest oxygen levels of 19 microM at 3 degrees N in the euphotic zone indicate mixing of low oxygen high salinity Arabian Sea waters with the equatorial Indian Ocean. The seasonal variability of nutrients was regulated by seasonally varying physical processes like thermocline elevation, meridional and zonal transport, the equatorial undercurrent and biological processes of uptake and remineralization. Circulation of Arabian Sea high salinity waters with nitrate deficit could also be seen from low N/P ratio with a minimum of 8.9 in spring and a maximum of 13.6 in winter. This large deviation from Redfield N/P ratio indicates the presence of denitrified high salinity waters with a seasonal nitrate deficit ranging from -4.85 to 1.52 in the Eastern Equatorial Indian Ocean.


Assuntos
Monitoramento Ambiental , Estações do Ano , Água do Mar/química , Ecossistema , Oceano Índico , Nitratos/análise , Nitritos/análise , Oxigênio/análise , Fosfatos/análise , Salinidade , Silicatos/análise
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