All The Americas articles
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NewsWHO calls for urgent action to address worldwide disruptions in tuberculosis services
Since World Tuberculosis Day is only days away, World Health Organization addresses the current challenges faced by countries in TB responses. They urgently call for an united global effort to combat the deadly disease and safeguard the public health from the devastating consequences.
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NewsLeafcutter ants recognize and fight pathogen with social immunity
Various characteristics of social immune memory were observed in colonies of Atta sexdens (lemon leafcutter ants) exposed to different pathogenic fungi. Such information is useful for future development of appropriate pest control.
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NewsPlastic-degrading enzymes from landfills
Researchers identified and analysed the structure and predicted functions of potential plastic-degrading enzymes in collected landfills sample from around the world, in an effort to reduce plastic pollution.
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NewsFirst coronavirus similar to MERS is found in bats in South America
A novel coronavirus, which shares high genetic similarities with MERS-CoV, was identified in bats in the state of Ceará, Brazil. Experiments to find out whether it can infect humans are set to take place in collaboration with Hong Kong University.
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NewsRestoring vegetation cover in Amazon's pasture areas can reduce methane emissions, study reveals
Proper pasture management in the Amazon, aimed at maintaining soil vegetation cover, can reduce methane emissions from livestock farming, according to a new study analyzing emissions and microorganisms in Amazonian soil.
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NewsNew test identifies prior infection by zika virus and all four dengue virus serotypes
An alternative approach is developed to detect and distinguish between antibodies induced by the dengue and zika virus in blood samples. The strategy can be used to orient public health policy and evaluate the efficacy of dengue vaccines.
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NewsResearchers uncover blood metabolites that may influence early childhood development
Researchers have identified small molecules in the blood that may impact early childhood development, showing how dietary exposures, early life experiences, and gut health can influence a child’s growth and cognitive milestones.
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OpinionThe problem of microplastics in the oceans: it’s time for effective solutions
Francielly Bruna Neto Francisco and Ricardo Henrique Krüger, from the University of Brasília (UNB), warn that we urgently need technologies that will effectively eliminate partially or nonbiodegradable polymers from the marine environment.
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NewsRapid diagnostic tests improve diagnosis access to indigenous Paraguayan community for Chagas disease
A study has shown that combining rapid diagnostic tests (RDTs) with conventional serological tests proves to be a useful strategy for diagnosing Chagas disease in an indigenous community in the Paraguayan Chaco with its higher prevalence of the disease.
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NewsNew method ‘fishes’ for bacterial STI DNA, revealing how Chlamydia spreads and adapts
Scientists have developed a cutting-edge “target enrichment” technology for bacterial STIs. Using specially designed molecular probes, they “fished” for bacterial STI DNA from clinical samples, enabling high-resolution genome analysis.
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NewsReemergence of dengue serotype 3 may increase severity of outbreaks of the disease in Brazil
From the genomic and epidemiological surveillance of the circulating dengue virus strains, a more severe dengue epidemic may occur in Brazil, due to the re-establishment of dengue virus serotype 3 (DENV-3) and persists alongside with the serotype 1 and 2 (DENV-1 and DENV-2).
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NewsTurmeric teamed with light can help ward off superbugs
In a new study, researchers have evaluated a low-cost yet effective technology called photodynamic inactivation using curcumin to curb bacterial resistance.
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NewsStudy tracks algae species interactions to help predict harmful algae blooms
A study yields new insights into how algae species interact with each other and their environment in coastal waters, aiming to understand how harmful algal species interact with other phytoplankton and environmental factors like temperature and salinity.
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NewsResearchers in Brazil discover a gene that may afford protection against COVID-19
During the pandemic, health worker Maria Tereza Malheiros Sapienza’s curiosity was aroused by her immunity to SARS-CoV-2, even though her husband was infected twice. A new study reveals that an overexpression of IFIT3 protein was responsible.
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NewsScientists discover unique microbes in Amazonian peatlands that could influence climate change
Researchers have identified an unknown family of microbes uniquely adapted to the waterlogged, low-oxygen conditions of tropical peatlands in Peru’s northwestern Amazonian rainforest.
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NewsBioactive compounds with possible industrial applications are identified in extremophilic bacteria from the Andes
Researchers isolated a strain of Pseudomonas alcaligenes that can withstand temperatures as high as 44 °C from a hot spring in Chile, and characterized the substances produced by the bacterium that help it survive extreme conditions.
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NewsOral cancer and microbiome: new insights into tumor growth mechanisms
A recent study has made significant strides in uncovering how the oral microbiome plays a crucial role in the progression of oral squamous cell carcinoma (OSCC), unveiling metabolic pathways and mechanisms that may serve as potential therapeutic targets.
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NewsPromising COVID-19 vaccine development in animal trials
Researchers developed a COVID-19 vaccine that deploys virus-like particles (VLPs) for immunity stimulation in mice.
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NewsCompound derived from Brazilian plant acts against parasite that causes visceral leishmaniasis
A compound derived from Nectandra leucantha, a tree native to southern Brazil (local names canela-seca or canela-branca), has the potential to be used to treat visceral leishmaniasis, a neglected tropical disease.
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NewsCapybaras found dead from rabies on island in Brazil
The viral rabies strain found in the dead animals on Anchieta Island in Ubatuba was the variant transmitted by vampire bats, which probably fed on the capybaras’ blood at a time of habitat disturbance.