Vulnerability and adaptation to climate change in the semi-arid regions of west Africa

The paper provides an overview of demographic and economic facts and trends in West Africa in general, and Ghana and Mali in particular, with country data snapshots. It examines the development dynamics in the semi-arid and dry sub-humid areas that comprise a significant portion of the West African drylands. Climate vulnerability in the West African context includes extensification of agriculture onto increasingly marginal drought-prone soils, reduced mobility of pastoralists, and the increasing prevalence of built structures to store river water. This increases sensitivity and exposure of downstream water users to low water levels and drought. The paper provides in-depth analysis and policy recommendations.Canada’s International Development Research Centre (IDRC)UK’s Department for International Development (DFID

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance

INTRODUCTION Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic. RATIONALE We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs). RESULTS Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants. CONCLUSION Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

The global mangrove database and information system (GLOMIS) :present status and future trends

info:eu-repo/semantics/publishe

Living with Bats: The Case of Ve Golokuati Township in the Volta Region of Ghana

Transmission of zoonotic pathogens from bats to humans through direct and indirect contact with bats raises public apprehension about living close to bats. In the township of Ve Golokuati in Ghana, several “camps” of Epomophorus gambianus roost in fruit trees that provide ecosystems services for residents. This study explored human-bat interaction in the township and the potential risks of disease transmission from bats to humans. Data were derived through questionnaire administration and participatory appraisal approach involving focus group discussions, participatory landscape mapping, and transect walk. The study found that most human activities within the township, such as petty-trading, domestic chores, and children’s outdoor recreation, exposed people to bats. Though there have been no reported cases of disease spillover from bats to humans from the perspective of residents and from medical records, respondents whose activities brought them closer to bats within the township were found to be more likely to experience fevers than those who do not interact with bats frequently. The study recommends education of community members about the potential risks involved in human-bat interactions and makes suggestions for reducing the frequent interactions with and exposure to bats by humans

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

Vulnerability and adaptation to climate change in the semi-arid regions of West Africa

This series is based on work funded by Canada’s International Development Research Centre (IDRC) and the UK’s Department for International Development (DFID) through the Collaborative Adaptation Research Initiative in Africa and Asia (CARIAA).This report, which encompasses the findings of a Regional Diagnostic Study (RDS) for West Africa, was undertaken in 2014-15 to advance understanding of climate change in semi-arid regions of Africa and Asia. The RDS represents the first phase of a research effort under the Adaptation at Scale in Semi-Arid Regions (ASSAR) project. ASSAR is one of four consortia generating new knowledge of climate change hotspots under the Collaborative Adaptation Research Initiative in Africa and Asia (CARIAA1). The ASSAR project operates in Western, Eastern and Southern Africa and Western India. The ASSAR focal countries in Africa are Ghana, Mali, Ethiopia, Kenya, Botswana, and Namibia, and in India the focal states are Tamil Nadu, Maharashtra, and Karnataka

Socio-cultural Determinants of Human-Bat Interaction in Rural Ghana

Bats are known to be a natural reservoir for a lot of disease pathogens and can spread several diseases. All 11 genera of fruit bat found in West Africa are found in Ghana, and human–bat interactions are common. However, there is a dearth of knowledge about the socio-cultural factors that shape these interactions. This paper explores the socio-cultural factors that bring humans into contact with bats. Data were obtained through focus group discussions and in-depth interviews. The findings indicate that gender, religious affiliation, and belief systems influence the interaction between humans and bats. We conclude that the hunting and consumption patterns of bats have farreaching consequences for the transmission of bat-borne zoonotic diseases. Educational campaigns, therefore, should be intensified and, in particular, target groups that are most at risk of contracting bat-borne zoonotic diseases