Articles tagged with Africa
A new study led by UCL researchers found evidence of ancient empires' impact on migration in Africa, revealing genetic traces from across the continent. The study used DNA data from over 1,300 individuals from 150 ethnic groups, identifying migrations linked to empires like Kanem-Bornu and Aksum.
The study confirms that a significant number of people from Southwest Asia moved to the Swahili coast in medieval and early modern times, having children with local populations. Hallmarks of the Swahili civilization predated these arrivals, contradicting previous scholarly views.
A University of South Florida anthropologist has uncovered the first ancient DNA from the Swahili Civilization, revealing African and Asian ancestry patterns. The study challenges centuries-old narratives and restores pride to the millions who identify as Swahili by providing clarity to their heritage.
A new study from the University of Surrey found that Water Safety Plans are not widely used in small drinking supplies in vulnerable rural areas due to a lack of awareness and training. This could put countless lives at risk, as these plans aim to improve the quality of small drinking water supplies.
A major conference will discuss the human cost of heritage loss due to climate change and explore how behavioural science can inform choices about what should be saved. International scholars and policy experts will examine how to measure the impact of Loss and Damage on coastal heritage.
A team of MIT researchers has created an 'unclonable' label system to combat counterfeit seeds in Africa, where fake seeds can cost farmers up to two-thirds of expected crop yields. The system uses biodegradable silk-based tags with unique codes that cannot be replicated.
Research at KAUST demonstrates that most of the Red Sea is underlain by oceanic crust, overturning the assumption that it's an extended rift basin. The team mapped the transition from a rift to seafloor spreading and found approximately two-thirds of the Red Sea is currently covered by oceanic crust.
A recent study found that organophosphate pesticides used to control desert locusts in Eastern Africa had devastating impacts on honey production, pollinators, and ecosystems. The campaign led to a 78% decline in honey production and an estimated loss of US$500 million in revenue.
A community-based approach using health workers increased IPTp coverage by up to 473% in Nigeria, but did not reduce antenatal care attendance. The TIPTOP project shows that community health workers play a critical role in supporting the health of women and can save thousands of maternal and infant lives.
A new study published in The Lancet found that an existing drug, sulfadoxine-pyrimethamine, protects pregnant women from sexually transmitted and reproductive tract infections. Researchers tested this drug alongside a promising new treatment, dihydroartemisinin-piperaquine, which showed unique ability to prevent malaria.
A global study aims to better understand the burden of Human papillomavirus (HPV) among girls and women in low- and lower middle-income countries. The study will inform effective strategies to prevent infection and introduce HPV vaccine into national programs, protecting the health of girls and women and reducing rates of cervical cancer.
A new study from the University of East Anglia finds that most people migrate short distances within their own country to adapt to climate change. The research reveals that everyday mobility is a crucial aspect of managing different shocks and stresses, including increasing climate variability.
A genomic study of 180 indigenous Africans provides new insights into human history, biology, and population diversity. The research sheds light on the origin of modern humans, African population history, and local adaptation, including traits such as skin color, heart development, and immunity.
A groundbreaking study used AI and high spatial resolution imagery to analyze over 300,000 satellite images and identify nearly 10 billion trees in sub-Saharan Africa. The research reveals that tree density and carbon stocks in the arid zone are underestimated, with a total carbon stock of 0.84 billion tonnes.
A new snake family, Micrelapidae, was identified through an international study led by Tel Aviv University researcher Prof. Shai Meiri. The family includes only three species, two in Africa and one in Israel, and diverged from the rest of the evolutionary tree about 50 million years ago.
A new study finds that rising temperatures will increase harmful plant emissions and dust, leading to a 14% boost in air pollution. The degradation in future air quality from natural sources is predicted to be significant, with two-thirds of the pollution coming from plants.
Researchers analyzed 183 million buildings in 6,000 African cities and found that a city's shape affects its energy demand. Double the population means triple the energy costs due to increased commuting distances and pollution.
A new study by the University of Portsmouth found that UK development policy has shifted from focusing on poverty and conflict to prioritizing national security interests. This shift has led to reduced aid to Africa and a narrower focus on the national interest.
Researchers analyzed ancient fossils in South Africa to discover a new predatory fish species from the Late Devonian period, estimated to be around 360 million years old. The species, Hyneria, may have grown up to 2.5m long, making it one of the largest known fish species from this era.
A culturally appropriate model of end-of-life care is being developed in Ghana to address the scarcity of palliative care in low-resource communities. COMPASS Ghana aims to provide universal end-of-life care by the end of the decade, utilizing a compassionate community approach that involves patients and caregivers in care provision.
A North Carolina State University study shows that yam seeds wrapped in a biodegradable paper made from banana fibers and cardboard grow larger and more abundantly than those without the paper. The 'wrap-and-plant' method also reduces post-harvest loss by minimizing nematode pest effects.
A new study has confirmed that people living with HIV who switch from efavirenz to dolutegravir may gain more weight and have a higher risk of developing high blood pressure. The study found that patients on dolutegravir gained an average of 1.78 kg in 12 months, compared to those on efavirenz.
Researchers found dapivirine levels in breast milk to be very low, posing no safety concerns. The study supports the inclusion of breastfeeding populations in global guidelines for the use of the dapivirine vaginal ring for HIV prevention.
The DELIVER study found that the vaginal dapivirine ring posed no safety concerns when used in the third trimester of pregnancy. The study enrolled women at different stages of gestation and reported similar pregnancy outcomes between those using the ring and a placebo.
The Operation Pangolin project aims to save the world's eight pangolin species by generating data to inform conservation strategies and implementing wildlife crime prevention efforts in Central Africa. The team will use novel technology and artificial intelligence methods to address the illicit wildlife trade and prevent extinction.
Researchers analyzed data on European travellers arriving from Africa between 2015 and 2019, finding malaria as the most common arthropod-borne disease. The study highlights the importance of using travellers' health data to complement local surveillance systems in Africa.
A decade-long experiment found that high-intensity fires did not reverse bush encroachment in the long term, despite an initial decline in woody plant cover. The study suggests that fire management strategies must be tailored to each local context and that long-term monitoring is crucial for effective conservation.
The discovery of stone tools and cut-marked animal bones at the Nyayanga site in Kenya offers new insights into the dawn of stone technology. The artifacts, dating back 2.9 million years, include hammerstones, cores, and flakes, which were used to process a wide range of materials and foods.
A new study found that a single dose of azithromycin given during labor significantly reduced the risk of maternal death or sepsis in women in low- and middle-income countries. The antibiotic was administered to over 29,000 participants in eight sites across Africa, Asia, and Latin America.
Scientists develop eigenmodes of structured light that remain undistorted even in turbulent channels, enabling robust transmission through noisy media. This breakthrough paves the way for future work in quantum light communication and imaging through complex systems.
A new study found Black South Africans who migrated to find work reported better emotional well-being and were at lower risk for depression after the move. The research may help policymakers tailor mental health resources to underprivileged migrants and those seeking economic mobility.
Replacing biomass-burning cookstoves in sub-Saharan Africa could save 463,000 lives and $66 billion in health costs. However, adoption has been sluggish due to high upfront costs, with many households unable to afford cleaner alternatives.
An experimental vaccine against Marburg virus demonstrated a good safety profile and induced strong, long-lasting immunity in a Phase 1 clinical trial. The vaccine candidate, cAd3-Marburg, induced an immune response in 95% of participants and maintained that response for over 48 weeks.
A Cambridge-led consortium has received $35m to engineer plants to utilize naturally occurring micro-organism interactions, enhancing nutrient uptake and increasing crop yields. This approach aims to revolutionize smallholder farming in sub-Saharan Africa and provide a sustainable solution for food production.
A new study by the University of East Anglia finds a significant association between low literacy and poor mental health outcomes across multiple countries. People with lower literacy skills are more likely to experience anxiety and depression, highlighting the importance of addressing literacy as part of mental health services.
A joint team of researchers uncovered serious management and compliance issues on lion farms in the Free State, including potentially fraudulent activities with microchip reuse and incomplete record keeping. The study highlights concerns that lion farm owners may be laundering wild-caught lions through microchip reuse.
Researchers discovered 'dhaka' pits that stored surface and ground water for the city, managing a stable supply during dry periods. The ancient civilization's innovative approach to water management may offer valuable lessons for modern societies.
Researchers analyzed Ghana's chicken market, finding that EU imports depress local prices, harming poor and smallholder households. Higher tariffs would increase domestic prices, but benefits few, while cheap imports improve nutrition for low-income groups.
A team of scientists reviewed the effectiveness of reanalysis data products for studying the West African climate. They found that ERA5 achieved considerable progress in reducing biases and improving representation compared to its predecessor, ERA-interim.
A new study found that limited information is available on the size of the gambling market, participation, harms, and prevention in Sub-Saharan Africa. The researchers argue that regulation is outdated and ill-equipped for a digital age, with many territories lacking explicit regulation for online gambling.
A new study reveals that replacing traditional wood- and charcoal-burning stoves in sub-Saharan Africa could save up to 463,000 lives yearly due to reduced air pollution. The OnStove tool provides a data-based way to calculate costs and benefits of transitioning to cleaner alternatives.
A new study published in The Lancet HIV reveals that women experiencing recent intimate partner violence are three times more likely to contract HIV. The research highlights the intersectional epidemic of IPV and HIV in Sub-Saharan Africa, where women face increased risk of HIV acquisition and less frequent viral load suppression.
African patients with chronic hepatitis B face limited access to treatment due to inadequate guidelines. Researchers propose lower treatment thresholds and better adapted guidelines for the African population.
A study by Brown researchers reveals how climate change can impact the Indian Ocean dipole, leading to extreme weather events like megadroughts in East Africa and flooding in Indonesia. The analysis compares long-term climate data with simulations from an advanced climate model.
A new study by Dr. Urenmisan Afinotan from the University of Exeter Law School reveals that weak penalties and loopholes in Nigeria's legislation are failing to deter gas flaring in the Niger Delta, despite efforts since the 1960s. The study highlights the need for stronger regulations to mitigate climate change.
Australian scientists confirm that Theria (placental and marsupial mammals) evolved in Gondwana 50 million years ago before migrating to Asia. The discovery challenges long-held theories of mammal evolution.
A North Carolina State University study found that mosquitoes harbor diverse bacterial communities, including those associated with human diseases. The research revealed greater bacterial diversity internally than externally, suggesting that mosquitoes may transfer pathogenic bacteria through physical contact or defecation.
A large-scale randomized clinical trial confirms the safety of three Ebola vaccine regimens, inducing an immune response that persists for up to 12 months. The study suggests that vaccines can be a crucial tool in fighting the spread of the disease in sub-Saharan African countries.
A new study by Boston University School of Public Health found that nearly 90% of deceased individuals at a Zambian morgue were infected with COVID-19, contradicting previous assertions that the virus spared Africa. The study suggests that the reported death toll in Africa is substantially higher than official records indicate.
A high-throughput analysis of 26 medically important snakes in sub-Saharan Africa reveals the benefits of an integrated approach to understanding their venom composition and function. The study provides a solid foundation for further research on snake biology and antivenom development.
A large cohort study in Tanzania found that antiviral treatment can reduce the risk of HIV transmission from mother to child by 99.5%. The study suggests that achieving the World Health Organization's goal of eliminating mother-to-child transmission is possible with modern antiviral drugs.
Researchers found viruses with Omicron-specific mutations in COVID-19 patients in six African countries two months before the variant was detected. The study suggests that Omicron emerged gradually, evolving from existing human immunity, and spreading rapidly across Africa before global detection.
Research suggests that long-lasting insecticidal malaria nets lost their effectiveness after just one year in Burundi, contradicting the recommended replacement every 3 years. The study found that malaria incidence rose again after two years, highlighting the need for continued epidemiological monitoring and improved resource allocation.
Researchers found that small pelagic fish, such as herring and sardines, are a cheap source of nutritious seafood. These fish can provide essential micronutrients like iron, zinc, and omega-3 fatty acids to vulnerable populations in low-income countries.
Conservation efforts in Madagascar require balancing human development with protection of its rich biodiversity, which is threatened by extinction due to local species' uniqueness. Reforestation and community engagement are recommended strategies for addressing these challenges.
Research by Lancaster University found that Egyptian mothers' employment during their daughter's adolescence has a long-lasting impact on their daughters' employment stability in adulthood. Employed mothers are more effective role models and bolsters daughters' aspirations, leading to stable public sector employment.
Researchers used microCT to create a 3D atlas of lung lesions in TB and COVID-19, revealing complex shapes and hidden pathological structures. The study provides new insights into the microscopic anatomy of these deadly diseases.
A new study found that a single dose of acoziborole is as effective as current treatments for sleeping sickness, with a cure rate of 95% for late-stage patients and 100% for early/intermediate-stage patients. The treatment could revolutionize treatment for the disease by eliminating barriers such as hospitalization and travel distances.
Biovac has concluded a licensing agreement with the International Vaccine Institute (IVI) to manufacture an oral cholera vaccine, addressing the critical shortage of vaccines needed to prevent cholera globally. The partnership aims to increase production volumes, reduce supply gaps, and support Africa's indigenous vaccine industry.
A new report showcases perennial rice strains that can thrive in various climate conditions, offering labor and cost savings for farmers. The research emphasizes the need for large-scale localization of perennial rice to tailor it to local climates, with potential applications in Africa and other regions.