All The Americas articles
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NewsProtein nanorings designed to detect and neutralize SARS-CoV2 virus
Scientists have generated a new ring-shaped protein nanomaterial capable of strongly binding to and neutralising the SARS-CoV2 virus. The new nanomaterial is formed by a scaffold based on recombinant ring-like proteins (RLPs), to which mini proteins were incorporated.
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News1,000-year-old gut microbiome revealed for young man who lived in pre-Hispanic Mexico
Analysis of preserved feces and intestinal tissue has revealed specific types of bacteria that were present in the microbiome of a young adult man who lived in Mexico about 1,000 years ago, prior to Spanish colonization.
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NewsBreakthrough results from elephant herpesvirus trial find vaccine to be safe
The world’s first vaccine trial against elephant endotheliotropic herpesvirus (EEHV) – a leading cause of death in young Asian elephants – is safe and triggers a strong virus-fighting immune response, according to a research team.
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NewsQdenga vaccine shows effectiveness against dengue under real-world conditions during Brazil’s 2024 outbreak
An international team of researchers has demonstrated that the tetravalent dengue vaccine Qdenga provides significant protection against the disease under real-world conditions, during the large 2024 epidemic in São Paulo, Brazil.
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NewsSuper-resistant bacteria found in wild birds at a rehabilitation center in Brazil
Researchers have found antibiotic-resistant bacterial clones in wild birds at a rehabilitation center. The identified Escherichia coli clones have been found in community- and hospital-acquired human infections worldwide, and were present in the intestinal tracts of a vulture and an owl.
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NewsPlant-derived compound has antimicrobial and anti-inflammatory effects against periodontal disease
Morin-based powder, extracted from guava leaves, apple peel, and figs, can be slowly released with the help of polymers and serve as an alternative to antibiotics.
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NewsStudy recommends integrated risk assessment for zoonotic and vector-borne diseases
A summary of published studies on the risk of emerging diseases shows that only 7.4% simultaneously consider hazard, exposure, and vulnerability to infection.
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NewsCoral reefs set to stop growing as climate warms, scientists warn
Most coral reefs will soon stop growing and may begin to erode – and almost all will do so if global warming hits 2°C, according to a new study in the western Atlantic.
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NewsResearch identifies immune response that controls Oropouche infection and prevents neurological damage
Research conducted on mice has identified that the rapid response of a specific type of defense cell is essential for controlling Oropouche virus infections and preventing serious neurological damage.
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NewsAcross eight Amazon countries, forests on Indigenous lands reduce spread of 27 diseases
New research finds that municipalities in the Amazon region closest to healthy forests on Indigenous lands face less risk from rising cases of two categories of disease: cardiovascular and respiratory diseases due to forest fires and illnesses.
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NewsSwitch on, switch off: the dynamic defense of a deadly plant disease
Even strains of Phytophthora infestans considered sensitive to mefenoxam can rapidly develop resistance after a single exposure to a low dose. Researchers have uncovered the dynamics of this defense mechanism, revealing a foe that is more adaptable than previously thought.
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NewsStudy detects multidrug-resistant KPC-producing bacteria in Chilean wastewater for the first time
A team of Chilean researchers has identified, for the first time in the country, the presence of KPC-type carbapenemase-producing bacteria in wastewater samples from the Greater Concepción Metropolitan Area.
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NewsDeadly infectious bone disease wiped out long-necked dinosaurs in Brazil
Researchers found sauropod bones with signs of osteomyelitis, an infectious disease that can be caused by viruses, bacteria, fungi, or protozoa and that killed the animals quickly. The discovery suggests that favorable conditions for the disease existed.
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NewsNew bacterium discovered in the Amazon is closely related to Andean species that causes human bartonellosis
A new species of bacteria of the genus Bartonella has been found in the Amazon National Park in the state of Pará, Brazil, in phlebotomine insects, also known as sand flies. Its DNA is similar to that of two other Andean species of bacteria.
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NewsFermentation method transforms unripe fruits into specialty coffees
Normally discarded, green beans from the Arara cultivar were subjected to airless fermentation and produced high-quality beverages in blind tests. Researchers see potential for the product to be valued in domestic and foreign markets.
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NewsLaser therapy enhances treatment of fungus resistant to conventional medication
Researchers have managed to reduce Candida albicans’ resistance to fungicides by incorporating photodynamic inactivation techniques into the treatment. The technology can be used in both human healthcare and the prevention of food contamination.
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NewsCorals in Brazilian archipelago capture carbon equivalent to the burning of 324,000 liters of gasoline per year
A single species found in the Alcatrazes Archipelago, brain coral, produces around 170 tons of calcium carbonate annually. This represents the retention of approximately 20 tons of carbon in mineral form, which can last for centuries or millennia.
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NewsStudies confirm influence of country of origin on trust in COVID-19 vaccines
During the pandemic, a preference for domestic vaccines or those from countries such as the United States, Germany, and the United Kingdom was observed for the first time. This phenomenon is known in marketing as the country of origin effect.
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NewsStealth genetic switch in mosquitoes halts malaria spread
Biologists have created a CRISPR-based gene-editing system that changes a single molecule within mosquitoes, stopping the malaria-parasite transmission process. Genetically altered mosquitoes are still able to bite those with malaria, but the parasites can no longer be spread to other people.
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NewsCassava witches’ broom disease takes flight in South America
Cassava witches’ broom disease is quickly spreading across Northeastern South America, threatening a critical food staple for millions of people in Brazil and the continent.