All The Americas articles
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10% of children in high-burden tuberculosis settings may develop the disease by age 10
A new study finds a high risk of tuberculosis infection and disease in children up to 10 years old who live in areas where TB spread is common.
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Study reveals insights into oral HPV incidence and risks in men across 3 countries
A new study has unveiled crucial information about the incidence and risk factors of oral human papillomavirus (HPV) infections among men in the United States, Mexico and Brazil - the virus is linked to up to 90% of all oropharyngeal cancer cases in men in the U.S.
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CDC/PEPFAR awards Georgetown $27.5 million to address HIV/AIDS in Haiti
CDC and PEPFAR have awarded $27.5 million to the Center for Global Health Practice and Impact (CGHPI) at Georgetown University Medical Center to expand its ongoing work in Haiti to address HIV/AIDS.
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COVID study reveals virus-induced inflammation during pregnancy, redefines vertical transmission
A protein made by SARS-CoV-2 can pass through the placenta and cause serious inflammatory immune responses in the fetus for 66% of pregnancies.
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Study helps understand pain associated with viral infection
Through experiments in mice infected with a herpes virus, scientists have identified an immune system sensor that recognizes viral fragments and activates neurons responsible for pain, independently of inflammation.
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Study identifies potential targets for treatment of visceral leishmaniasis
Discovery of a novel class of proteins that help regulate the parasite’s essential cellular functions could lead to the development of more effective drugs against the disease. More than 3,500 new cases are notified each year in Brazil.
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Zika virus offeres potential as treatment for brain cancer: review
Fourteen studies showed that Zika virus reduced cell viability, inhibited the growth and proliferation of glioma stem cells (GSCs), and decreased Bcl2 expression in central nervous system tumors, potentially enhancing chemotherapy and radiotherapy effects.
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First report of its kind describes HIV reservoir landscape in breast milk
In the first report of its kind, researchers have evaluated the HIV reservoir in the breast milk cells of two women living with HIV (WLWH) who had been on successful long-term treatment.
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Beer-related discoveries mark Oktoberfest
To create a probiotic beer, researchers have screened several different lactic acid-producing bacterial strains.
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Peptide acts as molecular shield to prevent SARS-CoV-2 from infecting cells
The synthetic peptide was inspired by ACE2, the protein to which the virus that causes COVID-19 binds to invade human cells. The results point to a route for the development of novel antivirals.
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Bacterial contamination and microplastics threaten Colombia’s largest and most productive coastal lagoon
A study warns of the presence of potentially pathogenic bacteria in microplastics extracted from water, sediments and the digestive tract of fish in the Ciénaga Grande de Santa Marta, the largest and most productive coastal lagoon system in the Colombian Caribbean.
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Study shows how emissions from Brazilian Pantanal’s soda lakes contribute to climate change
Characterized by high pH and salinity, these soda lakes have practically dried up because of rising temperatures, changing rainfall patterns, and wildfires. The study shows how the local microbial community influences greenhouse gas emissions.
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Less tea, vicar - fruit juice offers a fresh take on kombucha
Researchers studying kombucha brews made from apple and passion fruit juices found that the apple beverage contained high levels of bioactive compounds called flavonoids and ranked highly among taste testers, signaling its promise as a kombucha alternative.
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Presence of bacteria in soil makes flowers more attractive to pollinators
Bacteria that live in soil and help roots fix nitrogen can boost certain plants’ capacity to reproduce by enhancing the attractiveness of the plant’s flowers to pollinators via a relationship known as mutualism that is widespread in plants and animals.
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Thousands of donkeys vaccinated against rabies
The Donkey Sanctuary is collaborating with local government agencies and partner organisations, to support vaccination programmes in two key communities that rely on donkeys for their livelihoods.
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Coral colony from Fiji reveals warmest temperatures in more than 600 years
The sea surface temperature in the Fijian archipelago is now at its maximum for more than 600 years, reveals an international research team’s evaluation of a new coral record providing further evidence for unprecedented warming in the western Pacific Ocean.
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Propagated corals reveal increased resistance to bleaching during fatal heatwave of 2023
During the devastating heatwave in the Caribbean in 2023, young, bred corals that had been seeded in a reef restoration effort stayed healthy while most of the remaining wild corals bleached and many died in the aftermath.
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Scientists awarded $90m to prep for future pandemics from understudied viruses
Scientists are laying the groundwork to rapidly respond to potential future pandemics caused by viruses from five understudied families, developing strategies and tools to produce vaccines and antibody-based therapies.
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Fungus uses surface protein of its spores to weaken human immune system
An international research team discovered a special enzyme on the surface of the spores of Aspergillus fumigatus apparently suppresses the release of pro-inflammatory substances by immune cells, making it easier for the pathogen to spread in the tissue.
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Researchers 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.