All The Americas articles – Page 6
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NewsResearchers discover key gene regulating virulence of fungus that causes severe lung infections
Scientists have found a potential target for novel therapeutic strategies to combat fungal infections caused by Aspergillus fumigatus and are now looking for a molecule that inactivates the protein expressed by the gene as a basis for a drug.
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NewsMeet the Global Ambassadors: Our Q&A with Sergio L Alves jr
The Microbiologist chats with our new Global Ambassador for Brazil, Sergio L Alves jr, Associate Professor at the Federal University of Fronteira Sul (UFFS).
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NewsSevere COVID-19 can involve either exacerbated lung inflammation or high viral replication
Researchers report a study based on autopsies of 47 patients who died after being infected by the ancestral strain of SARS-CoV-2. The findings will support clinical decisions on the treatment of critical cases.
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NewsDormancy defence systems show us why phages may not be the answer to everything
Toxin/antitoxin defence systems in bacteria need to be better understood if the potential of phage therapy is to be realised, a new review in Sustainable Microbiology suggests.
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NewsResearch group identifies novel probiotics in traditional Brazilian cheeses
Researchers have identified lactic acid bacteria (LAB) that have probiotic properties and are beneficial to human health in samples of traditional Brazilian cheeses.
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NewsMen infected with high-risk types of HPV could struggle with fertility
Men infected with high-risk HPV genotypes show evidence of sperm death from oxidative stress and an impaired immune response, a new study suggests.
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NewsNew method pinpoints virus that targets Ecuador fruit crop
Scientists in Ecuador have developed a new method to detect and diagnose a virus that devastates crops of babaco, a fruit plant of economic importance to local farmers.
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NewsResistance found in parasite infecting cutaneous leishmaniasis patient
Researchers who analyzed samples from a 46-year-old patient in Brazil found an amphotericin B-resistant strain of the parasite Leishmania amazonensis circulating for the first time in the country.
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NewsLens-free fluorescence instrument detects deadly microorganisms in drinking water
A new approach promises low-cost, real-time water quality monitoring for developing countries, disaster areas and rapid testing needs at events like the Paris Olympics.
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CareersThe role of fungi in the Amazonian bioeconomy
The term bioeconomy is entering the mainstream and has brought discussions on sustainable development into the spotlight, in particular for the Amazon region.
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NewsStudy identifies protein that affects health of gut microbiota and response to bacterial infection
A new study shows how the presence of a specific protein called IL-22BP affects the composition of the gut microbiota and the body’s response to bacterial infection.
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News New initiative launched to advance mRNA vaccine development against human avian influenza (H5N1)
A new project aiming to accelerate the development and accessibility of human avian influenza (H5N1) messenger RNA (mRNA) vaccine candidates for manufacturers in low- and middle-income countries has been launched
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NewsMild COVID-19 can cause long-term cognitive losses
Although the damage caused by SARS-CoV-2 was most intense among those who had severe COVID-19, some had memory loss and attention deficit more than 18 months after being infected, even though they had not needed to be hospitalized.
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NewsSARS-CoV-2 pandemic increases maternal deaths from non-respiratory causes, study finds
A new study revealed a significant impact of the COVID-19 pandemic on maternal mortality in Chile. The pandemic did not affect direct obstetric deaths such as hemorrhage, sepsis and abortion, but non-respiratory indirect obstetric causes increased the most.
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NewsPrenatal Zika infection has long-term immune consequences in children, even without microcephaly
New findings challenge the current diagnostic criteria for congenital Zika syndrome, expanding the definition beyond skull or brain abnormalities.
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NewsStudy sheds light on patterns of Leptospirosis infection
Part of a multi-year project, the study seeks to identify demographic, socioeconomic and environmental factors in a high transmission setting in Brazil.
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NewsStudy identifies protein that helps COVID-19 virus evade immune system
Discovery of a new viral evasion mechanism, and of a monoclonal antibody that subverts it, is an advance in immunotherapy that offers the prospect of effective host-directed treatment to combat infections.
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NewsMayaro and chikungunya viruses observed circulating at the same time in the Brazilian Amazon
Infection by one virus was expected to afford protection against the other, preventing co-circulation. Researchers are warning of the risk of transmission of Mayaro in urban areas due to deforestation and advocate more effective epidemiological surveillance.
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NewsResearchers reveals why recombinant BCG induces a stronger and longer-lasting response
Researchers are working on a more potent version of the BCG vaccine that protects against TB. While the conventional immunizer reduced infection by 90% in experiments with mice, the recombinant BCG increased protection rates to 99%.
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NewsInnovative test diagnoses chagas disease in newborns
The LAMP molecular diagnostic test, coupled with a modified 3D printer to extract DNA, has a sensitivity comparable to PCR, and can be used in laboratories with limited resources.