74 research outputs found

    Efficacy and adoption of strategies for avian flu control in developing countries

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    In this paper, we present the results of a two-stage expert elicitation (Delphi) study conducted to provide input to contingent valuation (CV) studies. These CV studies are designed to estimate the benefits of various public and private strategies for the control of Highly Pathogenic Avian Influenza (HPAI) across the study countries of Ethiopia, Ghana, Indonesia, Kenya, and Nigeria. The results of these CV studies are expected to feed into the cost-benefit and cost-effectiveness analyzes, which will be conducted to identify the effective HPAI control strategies in each study country. The information gathered through the Delphi study included (1) definitions of the small-scale producers (noncommercial/semicommercial and commercial) across the study countries, (2) estimations of the efficacy of various private and public control strategies in HPAI control, and (3) estimates of the proportion of poultry producers who are expected to adopt these control strategies under different scenarios. In this Delphi study, we collected data from 23 experts and analyzed the data by using statistical analysis methods. The results reveal that small-scale flocks are significantly larger in Indonesia, compared to the four African countries. The efficacy levels of both private and public HPAI control strategies investigated are significantly higher for commercial producers than for their noncommercial/semicommercial counterparts. Across private strategies and study countries, regular monitoring is thought to have the highest efficacy for those in the noncommercial/semicommercial sector, whereas regular disinfection and containment in hard material (as a combined strategy) was found to be the most effective strategy in minimizing risk in the commercial sector. Across public strategies and study countries, experts see surveillance by veterinary services as the most effective public sector HPAI control strategy in both the noncommercial/semicommercial and commercial sectors. Finally, according to the experts, small-scale poultry producers’ likelihood of adoption is low overall, although adoption rates are higher for commercial producers than for noncommercial/semicommercial producers.Adoption, commercial sector, Delphi study, disease risk introduction and spread, efficacy, expert elicitation, Highly Pathogenic Avian Influenza, HPAI, noncommercial sector, private disease risk minimization strategies, public disease risk minimization strategies, semicommercial sector, small-scale poultry producers,

    Attitudes to and management of HIV/AIDS among health workers in Ghana: the case of Cape Coast municipality

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    Health Care Workers as key players in the prevention and management of diseases and important opinion and community leaders have become targets for studies, more so with the outbreak of HIV. Their perceptions, attitudes and practices have implications for the management of diseases in both health centres and communities. This study reports some of the results of in-depth interviews with Health Care Workers in the Cape Coast municipality (Ghana) on their perception of risk of exposure to HIV, attitudes to known persons with HIV/AIDS, counselling and confidentiality. Results indicate a general fear of infection given the working environment and conditions such as the insufficient supply of basic items, and inadequate information on the sero-status of some patients. Although aware of the basic precautions needed to avoid infection, some health workers did not follow them. There was also a lack of consensus among them on the issues of confidentiality and responsibility towards a discordant partner. The main arguments were those of the general debate between safeguarding individual rights and protecting the common good. It is important for the medical establishment to debate the issue so that the rights of some individuals are not compromised

    A latent class approach to investigating farmer demand for biofortified staple food crops in developing countries: The case of high-iron pearl millet in Maharashtra, India

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    This study explores farmer acceptance and valuation of a biofortified staple food crop in a developing country prior to its commercialization. We focus on the hypothetical introduction of a high-iron pearl millet variety in Maharashtra, India, where pearl millet is among the most important staple crops. A choice experiment is used to investigate farmer preferences for and trade-offs among various production and consumption attributes of pearl millet. The key pearl millet attributes studied included days it takes pearl millet to mature, color of the roti (flat bread) the grain produces, the presence of high-iron content (nutritional attribute), and the price of the pearl millet seed. Choice data come from 630 pearl millet-producing households randomly selected from 3 purposefully selected districts of Maharashtra. A latent class model is used to investigate the heterogeneity in farmers' preferences for pearl millet attributes and to profile farmers who are more or less likely to choose high-iron varieties of pearl millet. Our results reveal that there are three distinct segments in the sample, and there is significant heterogeneity in farmer preferences across these segments. High-iron pearl millet is valued the most by larger households that produce mainly for household consumption and currently have lower quality diets. Households that mainly produce for market sales, on the other hand, derive lower benefits from consumption characteristics such as color and nutrition. These results have implications for the design of targeted strategies to maximize adoption and consumption of high-iron pearl millet varieties.Biofortification, Choice experiment, latent class model, preference heterogeneity, Pearl millet,

    Ghanaian Pharmacists’ Knowledge and Perception of Medication History Taking

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    The role of pharmacists in the recording of accurate and comprehensive medication histories cannot be overemphasised. As experts in medicines, pharmacists are believed to be especially suited to acquire and supervise the recording of accurate medication histories due to their familiarity with drug names, doses, dosage forms, among others. Pharmacists involvement in the medication history taking process in health facilities, especially in developing countries is however not common. This study assesses the knowledge and perception of pharmacists about the medication history taking process and their role in it. Data were gathered through the administration of questionnaires to 55 pharmacists at Komfo Anokye Teachimg Hospital, a tertiary care institution in Ghana. Findings from the study show that pharmacists have an excellent knowledge (Mean = 4.32, SD = 0.78) and a positive perception (Mean = 3.90, SD = 0.89) of the medication history taking process. They are willing to be involved in the medication history taking process at health facilities. Keywords: Medication history, knowledge, perception, pharmacists.

    Investigating economywide and household-level impacts of sector-specific shocks in a poor country: The case of avian flu in Ethiopia

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    Do the economic effects of potential avian flu outbreaks justify policy attention and resource allocation in a poor country like Ethiopia? We address this question by assessing both economywide (macro-level) economic impacts and household (micro-level) livelihood impacts that might be caused by an avian flu outbreak in Ethiopia. Because 1) the prevalent traditional poultry sector is weakly linked to other sectors, 2) livelihoods of the poultry-producing households are diversified, and 3) shocks are idiosyncratic in nature, the study finds that the impacts of an avian flu outbreak are likely to be small and limited to producers who keep larger flocks. Therefore, allotment of funds to prevent the disease must be justified on the grounds of preventing spread of the disease to human populations in Ethiopia and in other countries where it might have more severe economic and health effects. In other words, resource allocation must be justified as a global public good.avian flu, Livelihoods, multimarket model, simulations, probit, zero-inflated negative binomial, Propensity score matching,

    Building the case for biofortification: measuring and maximizing impact in the HarvestPlus program

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    This paper describes the research and related activities that HarvestPlus undertook at each stage of the research process—discovery, proof of concept, delivery at scale—to establish and continuously strengthen the evidence base for program impact. Structured around the program’s theory of change, the evidence base includes estimates of the magnitude of potential impacts on key development outcomes as well as support for key assumptions that underlie outcomes along the impact pathway from release of biofortified varieties through adoption by farmers, consumption by consumers, and ultimately, to improved nutritional status. The HarvestPlus experience has important lessons for research for development (R4D) programs, many of which struggle to demonstrate progress towards outcomes and impacts throughout the research process.Keywords: Research for Development (R4D), Impact Assessment, Theory of Change, Micronutrient Deficiencies, Crop Varietal Improvemen

    THE HOMONYMIC CHAIN MODEL (HCM) AS A TOOL FOR MULTIPLE SENSE ANALYSIS

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    Many scholars – e.g. Glover (2005), Sekyi-Baidoo (2006) and Falkum (2010) – have expressed some concerns about Word Sense Multiplicity (WSM), which explains multiple meanings as part of a word. In other words, WSM is an integral part of any natural language including Akan on which this paper concentrates. As Agyekum (2002; 2005) and Levin (1993) observe, with WSM, users and researchers of language dwell on a particular sense of a word deeming it as an underlying representation of all other senses. In this paper, however, from the perspective of the homonymic and polysemic nature of a word, we seek to explore the Homonymic Chain Model (Oppong-Asare, 2012) as a tool for expressing the multiple meanings words in languages in descriptive terms. The model attempts to simplify the understanding of the various meanings of a word by conceptualizing its diverse senses. As will also be exhibited pictorially, the Homonymic Chain Model (HCM) also explains that a particular word may have two or more distinct meanings and each of the meanings may also have other related senses. As part of our conclusion, we contend among others that apart from aiding students and language learners to recognize and comprehend different senses of a word more clearly, HCM could also facilitate the work of translators working with Akan

    Investigating the role of poultry in livelihoods and the impact of avian flu on livelihoods outcomes in Africa

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    In this paper we investigate the role of poultry in households’ livelihoods portfolios and the impact of supply-and-demand shocks that may be caused by highly pathogenic avian influenza (HPAI) on households’ various livelihoods outcomes in four Sub-Saharan African (SSA) countries. The study countries include Ethiopia and Kenya in East Africa and Ghana and Nigeria in West Africa. These countries represent a spectrum of SSA countries regarding disease status, means of disease spread, and the role of the poultry sector in the economy. By using nationally representative household-level secondary data and discrete choice methods (probit and zero-inflated negative binomial models), we profile the household, farm, and regional characteristics of those households that are most likely to keep poultry and those households that are most likely to be engaged in intensive poultry production (that is, to keep larger household flocks). We estimate the ex ante impact of HPAI outbreaks and scares/threats on livelihoods outcomes by using the propensity score matching approach. The results of this study generate valuable information regarding the role of poultry in the livelihoods of small-scale poultry-producing households and the livelihoods impacts of HPAI-induced supply-and-demand shocks. Such information is critical for the design of targeted, and hence effective, HPAI control and mitigation policies.Agricultural growth and technologies, demand shock, highly pathogenic avian influenza (HPAI), Livelihoods, probit model, Propensity score matching, supply shock, zero-inflated negative binomial model,

    Identification of optimal investments

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    Biofortification is regarded as a complement to supplementation, industrial fortification and dietary diversification in the fight against micronutrient deficiencies. It is important therefore to first identify areas where biofortification may have high impact and prioritize these areas for more in-depth analysis. HarvestPlus has developed the Biofortification Prioritization Index (BPI), which ranks countries globally according to their suitability for investment in biofortification interventions. HarvestPlus is also conducting ex ante micronutrient intervention portfolio analyses, designed to simulate the implementation and impact of a biofortification program in countries which have been identified as suitable candidates for investment. Micronutrient intervention portfolio studies offer the ability to distinguish production, consumption and inadequate micronutrient intake at a more disaggregated level and offer a complementary design and planning tool to simulate the implementation of biofortification and examine its potential impact and cost-effectiveness among different approaches. In addition, these studies are designed to examine multiple interventions within a country, to better understand biofortification’s role in reducing micronutrient deficiency when considered among a suite of interventions. This case study of Zambia demonstrates how these tools can be used to assess the potential impact of biofortification, quantify its cost-effectiveness and examine how it interacts with and complements other interventions. Given the long-term nature of biofortification as an intervention investment, future analyses should continue to incorporate various scenarios including continued investment in sustainable development and the effects of climate change which are likely to condition the impact of biofortification and other interventions.Keywords: Biofortification, Biofortification Priority Index (BPI), Cost-effectiveness, Household Consumption and Expenditure Surveys (HCES

    Investigating the Role of Poultry in Livelihoods and the Impact of HPAI on Livelihoods Outcomes in Africa: Evidence from Ethiopia, Ghana, Kenya and Nigeria

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    In this paper we investigate the role of poultry in the livelihoods portfolios of households and the impact of supply and demand shocks that may be caused by Highly Pathogenic Avian Influenza (HPAI) on various livelihoods outcomes of households in four Sub-Saharan African (SSA) countries. The study countries include Ethiopia and Kenya in East Africa and Ghana and Nigeria in West Africa. These countries represent a spectrum of SSA countries in terms of disease status, role of poultry sector and means of disease spread. By using nationally representative household level secondary data and discrete choice methods (probit model and zero inflated negative binomial model) we profile the household, farm and regional characteristics of those households who are most likely to keep poultry, and those who are most likely to be engaged in intensive poultry production, i.e., keep larger household flocks. We estimate the impact of the disease outbreaks and scares/threats on livelihood outcomes by using matching methods (i.e., propensity score matching). The results of this study generate valuable information regarding the role of poultry in the livelihoods of small-scale poultry producing households and the livelihood impacts of HPAI induced demand and supply shocks. Such information is critical for the design of targeted and hence efficient and effective HPAI control and mitigation policies.Highly Pathogenic Avian Influenza (HPAI), demand shock, supply shock, livelihoods, probit model, zero inflated negative binomial model, propensity score matching, Livestock Production/Industries,
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