All The Americas articles – Page 2
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NewsSabiá virus has been circulating in Brazil for 142 years and mutating, study finds
Researchers developed a new method and identified the infection in two patients who died from acute hemorrhagic and neurological syndrome in São Paulo in 2019 and 2020.
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NewsResearch outlines strategy to protect Amazonian cocoa against witches’ broom
A new study evaluated 25 cocoa cultivars and identified two with superior performance. Both demonstrated a greater ability to maintain high productivity in mineral-poor soils and when attacked by the witches’ broom fungus. Production increased by up to 32% compared to more susceptible varieties.
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NewsResearch findings could expand bioluminescence-based applications in medicine and other industries
Medical researchers have used fungal light-producing enzymes in the Fungal Bioluminescence Pathway (FBP) to visually track processes like tumor progression and inflammatory responses. New research provides insights that may help improve and expand such bioluminescence-based tools and applications.
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NewsBiodegradable sensors attached to plants detect pesticides in three minutes
Researchershave created biodegradable, “wearable” sensors for plants to monitor their health, made from carbon ink and screen-printed onto transparent cellulose acetate bioplastics. They can monitor temperature, humidity, dehydration, biomarkers, diseases, nutrient levels, and the presence of pesticides.
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NewsMicrofossils interpreted as animal traces were actually algae and bactéria
A reexamination of microfossils found in Brazil shows that the marks previously interpreted as traces of worms or other small oceanic animals are actually communities of fossilized microscopic bacteria and algae.
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NewsScientists discover ‘hidden switch’ in immune cells that helps the body kill deadly fungus
Scientists have discovered a “control switch” inside our immune cells that helps the body destroy dangerous fungal infections. A protein called RAB5c helps white blood cells kill Aspergillus fumigatus – an airborne fungus that can cause life‑threatening lung infections in people with weakened immune systems.
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NewsScientists use ultrasound to destroy influenza A and COVID-19 viruses without damaging human cells
Researchers have discovered that high-frequency ultrasound waves similar to those used in medical exams can eliminate viruses such as SARS-CoV-2 and H1N1 without damaging human cells. Acoustic resonance causes structural changes in viral particles until they rupture and become inactivated.
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CareersQ&A: Meet Letters in Applied Microbiology Junior Editor Verônica Ortiz Alvarenga
We caught up with Verônica Ortiz Alvarenga, a food engineer and Professor at Universidade Federal de Minas Gerais in Brazil, who is one of the newest Junior Editors with Letters in Applied Microbiology.
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NewsHantavirus cluster linked to cruise ship highlights ongoing zoonotic risk and the need for vigilance
Experts emphasized caution while underscoring the importance of environmental controls, early detection, and clear communication in travel settings.
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NewsStudy confirms effectiveness of medicinal plant against SARS-CoV-2 virus
A study has revealed that galloylquinic acids extracted from the leaves of Copaifera lucens Dwyer, a tree endemic to Brazil primarily found in the Atlantic Forest, have a multi-targeted effect against SARS-CoV-2, the virus that causes COVID-19.
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NewsComparing veterinary antimicrobial stewardship: Why Brazil needs stronger monitoring systems
A new comparative analysis reveals critical gaps in antimicrobial monitoring frameworks across three major economies, with significant implications for global public health and food security.
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CareersFrom microbial processes to biofilm control: our interview with LAM deputy editor Marciane Magnani
We catch up with food microbiologist Professor Marciane Magnani of the Federal University of Paraíba in Brazil who has just been appointed as a Deputy Editor of Letters in Applied Microbiology.
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NewsComputational approach takes the guesswork out of drug development for Chagas disease
Researchers have established a computational protocol that could accelerate the development of more effective treatments for life-threatening parasitic infections such as Chagas disease, by enabling scientists to accurately identify reactions that can result in successful drug candidates without the need for trial and error.
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NewsWHO certifies the Bahamas for eliminating mother-to-child transmission of HIV
In a landmark achievement for Caribbean public health, the World Health Organization (WHO) congratulates The Bahamas for becoming the latest Caribbean nation to be certified as having eliminated the mother-to-child transmission of HIV.
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NewsConnected habitats help wildlife fight disease, strengthen protective microbes
Maintaining connections between natural habitats may support beneficial microbes that help wildlife defend against disease. A new study found that amphibians in connected natural forests and aquatic habitats were more likely to host beneficial skin microbes that inhibit a deadly fungal pathogen.
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NewsHow tiny cave shrimps grazing on microbes power the underworld of the Yucatan
Because they convert microbial growth in sinkholes beneath the Yucatan Peninsula into animal biomass, Typhlatya shrimps act as “keystone species”, introducing essential nutrients into the cave’s food web. They serve as a crucial initial link that larger subterranean predators feed on.
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NewsThe cold virus ‘hides’ and multiplies in the tonsils and adenoids, even in people without symptoms
A study reveals that tissues such as the tonsils and adenoids can serve as hiding places for the rhinovirus, which causes the common cold. The pathogen can persist in these tissues for long periods, be transmitted unexpectedly, and trigger new outbreaks of the disease.
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NewsCyanobacteria surprise scientists with evolutionary shift
Researchers report a surprising new discovery—a system thought to separate DNA has developed to sculpt the shape of the cell in cyanobacteria instead. The results shed light on how protein systems evolve and how multicellularity emerged in this type of ecologically essential bacteria.
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NewsScientists explore the bidirectional skin-brain axis: Mental health, dermatology-related quality of life, and the role of probiotics
Researchers investigating associations between mental health, dermatology-related quality of life (DLQI), and probiotic intake in 305 Brazilian adults found that women had significantly higher scores for anxiety, depression, and stress compared to men.
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NewsAncient tooth reveals the bacterium responsible for scarlet fever was not introduced to the Americas by Europeans
A research team has identified the Streptococcus pyogenes bacterium in a pre-Columbian Bolivian mummy and, for the first time, reconstructed the genome of this centuries-old pathogen.