All University of São Paulo articles – Page 2
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NewsResearchers conduct first-ever study to characterize microbiota in saliva of weaned piglets on commercial farms in Brazil
The results show that oral fluid bacteria differ from fecal and environmental bacteria. Identification of these microorganisms can help diagnose infectious diseases and improve pork production.
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NewsAnalysis of flour and rice in Brazil shows high levels of harmful fungal toxins
The foods, found in the homes of Brazilian families participating in the research, were stored for future consumption. The study is the first in Brazil to use biomarkers to characterize the risk associated with mycotoxins in the diet.
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NewsStudy confirms effectiveness of bivalent COVID-19 vaccine
A major bivalent COVID-19 vaccine induces production of neutralizing antibodies against the coronavirus that circulated at the start of the pandemic as well as subvariants of omicron, albeit less abundantly, according to a new study.
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NewsDNA vaccine against zika performs well in tests on mice
A Zika vaccine developed in Brazil and tested on mice has been found to be efficacious, inducing an immune response against the virus and protecting the animals appropriately.
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NewsArboviruses, mosquitoes and potential hosts tracked in real time
The technology used to sequence the first infections by SARS-CoV-2 at record speed has been successfully tested as a technique to monitor viruses transmitted by mosquitoes, such as dengue, zika, chikungunya and yellow fever.
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NewsStudy describes strategy for inactivation of multidrug-resistant bacteria
Zinc oxide nanoparticles with varying morphologies were tested against microorganisms isolated from patients.
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NewsStudy maps main genes involved in immune response to infection by dengue virus
Researchers compared data for the immune response induced by natural infection and vaccines. They identified the key factors in the development of long-lasting immunity.
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NewsStudy reveals how the chikungunya virus deploys multiple organ attack and leads to death
An international team including virologists, physicians, epidemiologists, clinicians, physicists and statisticians has discovered new mechanisms related to central nervous system infection in fatal cases of the infection
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NewsRare case of opossum infected by rabies sounds alarm for urban environments
The opossum was found dead in a park in the center of Campinas, a large city in São Paulo state (Brazil), with the same viral variant as fruit-eating bats. These mammals are regularly detected in cities, where they are often attacked by dogs.
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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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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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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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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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NewsStudy reveals bacterial protein capable of keeping human cells healthy
Researchers describes a hitherto unknown protein with anti-oxidizing properties secreted by Coxiella burnetii, a Gram-negative intracellular bacterium, pointing to possible treatments for auto-immune diseases and even cancer
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NewsStudy demonstrates antimicrobial action of polyalthic acid from copaiba oil
Polyalthic acid from copaiba oil is an effective antibacterial and should be used to develop alternative medications that can contribute to the effort to overcome antimicrobial resistance, according to a new study.
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NewsProgramme helps fund 16 Global South healthcare hubs to combat infectious diseases
A York University-led programme is helping bolster healthcare in the Global South by providing more than $5.8 million in funding for 16 projects in as many countries.
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NewsSanitized ready-to-eat salad may contain disease-causing bacteria
A review of research on minimally processed vegetables highlights cases of unsatisfactory microbiological safety and calls for best practice assurance throughout the supply chain.
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NewsGlitter impairs growth of cyanobacteria, study shows
Use of glitter in makeup, party costumes and decorations should be reconsidered, say researchers who investigated the effects of five concentrations of glitter on two strains of cyanobacteria.
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NewsMicrobe-rich Amazon dark earth boosts tree growth as much as sixfold
Brazilian scientists analyzed the typical soil composition resulting from native management with the aim of developing biotech applications for more effective restoration of degraded areas.
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NewsTwo new Antarctic bacteria species yield valuable cold-adapted enzymes
Scientists are experimenting with two new bacteria discovered in the Antarctic ten years ago, in order to verify the possibility of applications in healthcare, food processing and environmental rehabilitation.
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