All University of São Paulo articles
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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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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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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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News10% 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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NewsStudy 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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NewsStudy 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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NewsFungus 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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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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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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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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NewsScientists develop functional bread using probiotic yeast to help prevent asthma
Bread produced with probiotic yeast performed well in experiments with mice, showing potential to combat asthma, which affects 20 million Brazilians.
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NewsVirus that causes COVID-19 can remain in sperm for 110 days after infection
Researchers detected SARS-CoV-2 in male reproductive cells under the microscope even when PCR testing failed to detect the virus in semen. The discovery serves as a warning of possible implications for natural conception and assisted reproduction.
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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.
