All The Americas articles
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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.
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NewsRoyal Veterinary College awarded international grants to advance research into cattle vaccines
The Royal Veterinary College (RVC) has been awarded two pump-prime grants from the International Veterinary Vaccinology Network (IVVN) to advance crucial research into Bovine Babesiosis and Bovine Tuberculosis vaccines to support cattle welfare.
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NewsEl Niño increases infestations of mosquito that transmits dengue in São Paulo state, Brazil
A study by a group of scientists shows that larval infestations of Aedes aegypti in open-air disused containers increased in response to the effects of the weather phenomenon.
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NewsInnovative mycelium-based biocomposites are a leap towards sustainable materials
Researchers have developed a novel approach to understanding the properties of mycelium-based biocomposites.
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CareersSilvani Verruck: my year as a Junior Editor with Letters in Applied Microbiology
One year after we launched our Junior Editor programme with Letters in Applied Microbiology, Professor Silvani Verruck of Federal University of Santa Catarina in Brazil tells us how she is getting on.
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NewsPhotodynamic therapy with annatto colorant found to be effective against bad breath
A study by researchers working in Brazil shows that antimicrobial photodynamic therapy in which blue light targets annatto colorant is a feasible and effective option for treatment of halitosis in mouth-breathing children.
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NewsEnzyme produced by pathogenic fungus helps evade immune system and facilitates infection
Researchers found 62 proteins specific to spores of Aspergillus fumigatus, a fungal species that causes lung disease. The study showed that at least one of these proteins inhibits human human defense mechanisms.
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NewsAntarctic streptomyces offer promising biocontrol agents to combat banana wilt
A recent study has unveiled the biotechnological potential of microorganisms from Antarctica. Researchers evaluating the antifungal activity of isolated actinomycete strains found 41.18% of these strains could inhibit the growth of <i>Fusarium oxysporum</i>.
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NewsClimate change responsible for 19% of today’s rising dengue burden - but Wolbachia offers hope
Climate change is having a massive global impact on dengue transmission, accounting for 19% of the current dengue burden, with a potential to spark an additional 40%-60% spike by 2050 — and by as much as 150%-200% in some areas.
