Zoonotic Disease Risk and the Bushmeat Trade: Assessing Awareness Among Hunters and Traders in Sierra Leone

The bushmeat industry has been a topic of increasing importance among both conservationists and public health officials for its influence on zoonotic disease transmission and animal conservation. While the association between infectious diseases and the bushmeat trade is well established in the research community, risk perception among bushmeat hunters and traders has not been well characterized. I conducted surveys of 123 bushmeat hunters and traders in rural Sierra Leone to investigate hunting practices and awareness of zoonotic disease risk associated with the bushmeat trade. Twenty-four percent of bushmeat hunters and traders reported knowledge of disease transmission from animals to humans.
Formal education did not significantly affect awareness of zoonotic disease transmission. Individuals who engaged exclusively in preparation and trading of bushmeat were more likely to accidentally cut themselves compared to those who primarily engaged in bushmeat hunting (P < 0.001). In addition,

Understanding Framings and Perceptions of Spillover: Preventing Future Outbreaks of Bat-Borne Zoonoses?

Bats provide many ecosystem services and have intrinsic value. They also act as host reservoirs for some viruses. Several studies have linked zoonotic diseases to bats, raising questions about the risks bats pose, especially to people living close to bat roosts. Through a series of case studies undertaken in three communities, the purpose of this paper is to explore the various ways in which framings and perceptions of bats can influence a potential spillover of bat-borne viruses to humans in Ghana. It assesses the social, cultural and economic factors that drive human-bat interactions and posits that understanding the socio-economic contexts in which human-bat interactions occur is key to the success of future communication strategies.
Primary data collection methods included participatory landscape mappings, transect walks, focus group discussions and questionnaire surveys. Perceptions of bats vary and are influenced by personal beliefs, the perceived economic benefits derived from bats and the location of bat roosts.

Material Proximities and Hotspots: Toward an Anthropology of Viral Hemorrhagic Fevers

This article outlines a research program for an anthropology of viral hemorrhagic fevers (collectively known as VHFs). It begins by reviewing the social science literature on Ebola, Marburg, and Lassa fevers and charting areas for future ethnographic attention. We theoretically elaborate the hotspot as a way of integrating analysis of the two routes of VHF infection: from animal reservoirs to humans and between humans.

Urbanisation, the Peri-Urban Growth and Zoonotic Disease

Ebola has had significant, negative effects in the rapidly expanding, unregulated areas of peri-urban and urban West Africa. The residents of these areas maintain vital connections with rural populations while intermingling with and living in close proximity to urban and elite populations. These interconnections fuel the spread of Ebola. The degradation of natural resources, temporary housing, inadequate water supplies, hazardous conditions and dense concentrations of people in peri-urban areas exacerbate the potential for zoonotic disease spread. Yet the peri-urban remains largely unacknowledged and under- addressed in development.
In considering the intersections between Ebola, peri-urban settlements and urbanisation, we must recognise that: basic hygiene and isolation of the sick are frequently impossible; disease control through quarantine often ignores poor people’s patterns of movement and immediate material needs; quarantine can reinforce the political exclusion of peri-urban residents; and there exists the potential for future zoonotic disease emergence in peri-urban contexts.

Perceived Risk Factors and Risk Pathways of Rift Valley Fever in Cattle in Ijara District, Kenya

Ijara district in Kenya was one of the hotspots of Rift Valley fever (RVF) during the 2006/2007 outbreak, which led to human and animal deaths causing major economic losses. The main constraint for the control and prevention of RVF is inadequate knowledge of the risk factors for its occurrence and maintenance. This study was aimed at understanding the perceived risk factors and risk pathways of RVF in cattle in Ijara to enable the development of improved community-based disease surveillance, prediction, control and prevention. A cross-sectional study was carried out from September 2012 to June 2013. Thirty-one key informant interviews were conducted with relevant stakeholders to determine the local pastoralists’ understanding of risk factors and risk pathways of RVF in cattle in Ijara district. All the key informants perceived the presence of high numbers of mosquitoes and large numbers of cattle to be the most important risk factors contributing to the occurrence of RVF in cattle in Ijara.

Recent Outbreaks of Rift Valley Fever in East Africa and the Middle East

Rift Valley fever (RVF) is an important neglected, emerging, mosquito-borne disease with severe negative impact on human and animal health. Mosquitoes in the Aedes genus have been considered as the reservoir, as well as vectors, since their transovarially infected eggs withstand desiccation and larvae hatch when in contact with water. However, different mosquito species serve as epizootic/epidemic vectors of RVF, creating a complex epidemiologic pattern in East Africa. The recent RVF outbreaks in Somalia (2006–2007), Kenya (2006–2007), Tanzania (2007), and Sudan (2007–2008) showed extension to districts, which were not involved before.
These outbreaks also demonstrated the changing epidemiology of the disease from being originally associated with livestock, to a seemingly highly virulent form infecting humans and causing considerably high-fatality rates. The amount of rainfall is considered to be the main factor initiating RVF outbreaks. The interaction between rainfall and local environment,

Sociocultural and Economic Dimensions of Rift Valley Fever

Health researchers have advocated for a cross-disciplinary approach to the study and prevention of infectious zoonotic diseases, such as Rift Valley Fever. It is believed that this approach can help bring out the social determinants and effects of the zoonotic diseases for the design of appropriate interventions and public health policy. A comprehensive literature review using a systematic search strategy was undertaken to explore the sociocultural and economic factors that influence the transmission and spread of Rift Valley Fever.
Although the findings reveal a paucity of social research on Rift Valley Fever, they suggest that livestock sacrificial rituals, food preparation and consumption practices, gender roles, and inadequate resource base for public institutions are the key factors that influence the transmission. It is concluded that there is need for cross-disciplinary studies to increase the understanding of Rift Valley Fever and facilitate appropriate and timely response and mitigation measures.

Ebola in the Context of Conflict Affected States and Health Systems: Case Studies of Northern Uganda and Sierra Leone

Ebola seems to be a particular risk in conflict affected contexts. All three of the countries most affected by the 2014-15 outbreak have a complex conflict-affected recent history. Other major outbreaks in the recent past, inNorthern Uganda and in the Democratic Republic of Congo are similarly afflicted although outbreaks have also occurred in stable settings. Although the 2014-15 outbreak in West Africa has received more attention than almost any other public health issue in recent months, very little of that attention has focused on the complex interaction between conflict and its aftermath and its implications for health systems, the emergence of the disease and the success or failure in controlling it.The health systems of conflict-affected states are characterized by a series of weaknesses, some common to other low and even middle income countries, others specifically conflict-related.
Added to this is the burden placed on health systems by the aggravated health problems associated with conflict.

Zoonoses From Panic to Planning

This Rapid Response briefing from the Dynamic Drivers of Disease in Africa Consortium sets out recommendations for a new, integrated ‘One Health’ approach to zoonoses that moves away from top-down disease-focused intervention to putting people first.Over two thirds of all human infectious diseases have their origins in animals. The rate at which these zoonotic diseases have appeared in people has increased over the past 40 years, with at least 43 newly identified outbreaks since 2004.
In 2012, outbreaks included Ebola in Uganda (see Ebola box), yellow fever in the Democratic Republic of Congo and Rift Valley fever (RVF) in Mauritania. Zoonotic diseases have a huge impact – and a disproportionate one on the poorest people in the poorest countries. In low-income countries, 20% of human sickness and death is due to zoonoses. Poor people suffer further when development implications are not factored into disease planning and response strategies.

Swine Flu: What Went Wrong?

Although the H1N1 ‘swine flu’ pandemic of 2009-10 was less severe than anticipated, the event revealed weaknesses in the world’s current configuration of planning for and responding to pandemic influenza, according to new research outlined in this briefing.
Science, public health policy makers and people worldwide were confounded by the uncertainty, complexity and politics inherent in influenza – as well as the high emotions that come with pandemics.Amid this confusion, the global and national institutions responsible for protecting public health were shown to be over-reliant on a reductive, science-led approach that prioritised a one-size-fits-all response, and failed to address the needs and priorities of the world’s poorest and most vulnerable people.

The Political Economy of Avian Influenza in Thailand

Thailand is centrally located relative to the Avian Influenza epidemic and her response to the disease has important implications for disease control efforts both regionally and globally. A middle income country with a large and economically significant export oriented poultry sector, Thailand has made protection of the broiler industry and preservation of international market access the primary focus of her response. At the same time, policy-makers have needed to assuage small-scale poultry producers, including cockfighting enthusiasts, who have borne the brunt of movement controls and stricter biosecurity standards.
Consequently, the government has re-evaluated its absolute ban on livestock vaccination and implemented innovative strategies such as “bird passports” to reduce the burden of compliance on small producers. Another significant dimension of the Thai epidemic is the recent emergence of open-grazing duck production, which may have provided a reservoir and vector for the H5N1 virus.

The Political Economy of Avian Influenza in Indonesia

Why is the response to H5N1 highly pathogenic avian influenza (HPAI) so challenged in Indonesia? Why did the virus spread so fast, and why has the disease persisted? Are there features of the country and its culture that encourage or inhibit the disease? Is the internationally led response appropriately sensitive to local contexts? This paper suggests that distinctive social, cultural, economic and political factors work against a technocratic response such as has been employed in Indonesia. The paper explores the interactions between global bio-medicine, a mesh of power relations linking health, industry, institutionalism and governance, and Indonesia’s diverse and complex political and social contexts. How is an infectious zoonotic disease controlled in a dynamic environment where modernist models of authority and rationality are unproven?
Since H5N1 was first detected in central Java in mid-2003, it has spread to 31 of Indonesia’s 33 provinces,

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