All The Americas articles – Page 5
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NewsDrought may drive deadly amphibian disease by disrupting skin microbiome
Progressively severe droughts are disrupting the microbiomes of the thumbnail-sized orange frogs, potentially leaving them vulnerable to a deadly fungal disease, according to a new study by an international research team.
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NewsResearch links prison time with increase of TB
New research finds that being in prison or being a former prisoner is responsible for high rates of multidrug resistant (MDR) TB.
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NewsFungal infection acquired during surgery led to death and brainstem, blood supply injuries
A life-threatening mold infection known as health care-associated Fusarium solani meningitis can be associated with a delayed, but devastating, injury to the brainstem and its blood supply among those infected, according to physicians.
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NewsPrior zika infection increases risk of subsequent severe dengue and hospitalization
A study suggests that the mechanism that exacerbates dengue infection following a case of zika differs from that acting on second-time dengue patients. The finding is relevant to the development of a zika vaccine.
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NewsDengue vaccine protects 79.6% of those vaccinated, study shows
The single-dose Butantan-DV dengue vaccine prevents development of the disease in 79.6% of those vaccinated, according to a new study.
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NewsFungal disease endangers wheat production as climate change bites
Researchers have shown that further spread of the fungal disease wheat blast could reduce global wheat production by 13% until 2050. The result is dramatic for global food security.
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NewsSyphilis-like diseases were already widespread in America before the arrival of Columbus
Researchers at the Universities of Basel and Zurich have discovered the genetic material of the pathogen Treponema pallidum in the bones of people who died in Brazil 2,000 years ago. Source: Photo: Dr. Jose Filippini Skeleton at the site in Jubuicabeira II, Brazil. This is the oldest ...
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NewsCyanobacteria blooms intensify in Argentinian reservoirs
Research reveals cyanobacteria blooms have become more intense in Argentinian reservoirs, with positive records of cyanotoxins observed only in the last four years of the study period.
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NewsScientists address debates on postbiotic definition with new paper
A frequent misunderstanding is why microbially-produced metabolites do not qualify as postbiotics.
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NewsCases of chikungunya and zika fall in Brazil, but most risk clusters rise
Researchers observed spatial and temporal patterns of occurrence and co-occurrence for the two arboviral diseases in all Brazilian municipalities, alongside the influence of environmental and socio-economic factors.
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NewsPeople in prison are at very high risk of tuberculosis, even years after release
A study in Paraguay evaluates tuberculosis incidence during and after incarceration in a cohort of nearly 3,000 people.
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NewsPredominantly plant-based or vegetarian diet linked to 39% lower odds of COVID-19
A predominantly plant-based or vegetarian diet is linked to 39% lower odds of COVID-19 infection, finds new research.
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NewsIntravaginal sponge can make candidiasis treatment more comfortable and effective
A biodegradable sponge made of chitosan, a biopolymer derived from the shells of crustaceans, releases medication slowly into the organism and makes treatment of candidiasis more comfortable and effective.
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NewsScientists unlock the secrets of disease-causing fungus Aspergillus fumigatus
A new study demonstrates the pivotal role of the Mitogen-Activated Protein kinase MpkA in both gliotoxin production and self-protection.
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NewsMicrobes harnessed to remove and degrade indoor pollutants
Researchers have designed an indoor air purification prototype which uses microorganisms to capture and degrade pollutants, with efficiencies above 90%.
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NewsResearchers report detailed analysis of heart injury caused by yellow fever virus
The study is the first-ever demonstration of the anatomical substrate for the cardiac arrhythmias that occur in human yellow fever.
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NewsNanoparticles with antibacterial action shorten duration of tuberculosis treatment
A low-cost technology involving nanoparticles loaded with antibiotics and other antimicrobial compounds that can be used in multiple attacks on infections by the bacterium responsible for most cases of tuberculosis has been developed.
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NewsPhotodynamic action weakens resistance to antibiotics in bacteria that attack airways
A study of photodynamic inactivation (PDI) showed it has a novel capacity to modify bacterial sensitivity to antibiotics according to dosage, reducing the resistance and persistence of both standard and clinical strains.
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NewsDr Raquel Peixoto named as winner of the inaugural Rachel Carson Prize 2023
Dr Raquel Peixoto of King Abdullah University of Science and Technology (KAUST) in Saudi Arabia has been named as this year’s winner of the inaugural Rachel Carson Prize for microbiology.
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NewsRabies virus variants from marmosets are found in bats
Rabies virus variants closely related to variants present in White-tufted marmosets (Callithrix jacchus) have been detected in bats in Ceará state, Northeast Brazil.
