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Healthcare Hygiene Magazine (EUA)
Em 2024: 1 notícias
Desde 1995: 29 notícias
New technology unscrambles the chatter of microbes
Publicado em 05 fevereiro 2024
Researchers from University of California San Diego, as part of a large collaboration with scientists around the world, have developed a new search tool to help researchers better understand the metabolism of microorganisms. Microbes are key players in virtually all biological and environmental systems, yet limitations in current techniques used to study microbial metabolism make it difficult to decode their interactions and activities.
The new research, published February 5, 2023 in Nature [...]
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Sanitized Ready-to-Eat Salad May Contain Disease-Causing Bacteria
Publicado em 29 agosto 2023A review article published in the journal Foods describes a study that provides an overview of research on minimally processed vegetables (MPVs), with a specific focus on the Brazilian market. Data is presented on hygiene indicators and pathogenic microorganisms, especially Escherichia coli (the main indicator of fecal contamination), Salmonella spp., and Listeria monocytogenes, with prevalence rates ranging from 0.7% to 100%, 0.6% to 26.7%, and 0.2% to 33.3% respectively. The article [...]ver notícia -
Mutant Strains of Salmonella Make Infection More Aggressive in Commercial Poultry, Study Shows
Publicado em 24 maio 2023In Brazil, a group of researchers supported by the São Paulo Research Foundation (FAPESP) created mutant forms of Salmonella to understand the mechanisms that favor colonization of the intestinal tract of chickens by these pathogenic bacteria and find better ways to combat the infection they cause. An article on the study is published in the journal Scientific Reports. In it, the researchers note that, contrary to expectations, the mutant strains caused more severe infections than [...]ver notícia -
Researchers investigate diversity of E. coli bacteria in hospitalized patients
Publicado emThe human intestine is an environment inhabited by many bacteria and other microorganisms collectively known as the gut microbiome, gut microbiota or intestinal flora. In most people, it contributes to wellness. A healthy gut indicates a stronger immune system, improved metabolism, and a healthy brain and heart, among other functions. Escherichia coli is one of the bacteria found in practically everyone’s gut microbiota, where it performs important functions, such as producing certain [...]ver notícia -
Blood Donation Samples Can be Used to Monitor Progress of Epidemics, Study Shows
Publicado em 20 dezembro 2022An article published in the journal eLife reports a study in which researchers concluded that the proportion of the population previously infected by SARS-CoV-2 (infection-induced seroprevalence) can be estimated using blood donation samples. The findings offer a sort of “portrait” of the first year of the COVID-19 epidemic in Brazil. According to the authors, their novel methodology can also be used to track and estimate collective immunity to other infectious [...]ver notícia -
Post-Pandemic Outbreak of Drug-Resistant Fungus Traced to Abuse of Medications and Full ICUs
Publicado em 07 dezembro 2022In Brazil, a group of researchers has reported the largest outbreak to date of COVID-associated candidemia caused by the same drug-resistant strain of Candida parapsilosis, a fungus that invades the bloodstream and can lead to death. The outbreak occurred in 2020-21 in an intensive care unit (ICU) at a tertiary referral hospital in Salvador, Bahia state, during one of the peaks of the COVID-19 pandemic. In an article published in the journal Emerging Microbes and Infections, the researchers [...]ver notícia -
Infection of Visceral Fat Cells May Contribute to Severe COVID-19, Study Suggests
Publicado em 06 dezembro 2022Experiments conducted in Brazil by researchers at the State University of Campinas (UNICAMP) and the University of São Paulo (USP) showed that visceral fat – fat around the liver, intestines and other organs, considered a risk factor for cardiovascular disease, diabetes and high blood pressure – contributes more to severe COVID-19 than subcutaneous fat. To reach this conclusion, Marcelo Mori, a professor at UNICAMP’s Institute of Biology and one of the leaders of the [...]ver notícia -
New Test May Predict COVID-19 Immunity
Publicado em 29 novembro 2022Rapid, cheap and accurate tests continue to be essential for epidemiological surveillance and for health services to monitor and contain the spread of SARS-CoV-2. Brazilian scientists have contributed to endeavors in this field by developing an electrochemical immunosensor that detects antibodies against the virus. The innovation is described in an article published recently in the journal ACS Biomaterials Science and Engineering. In search of a novel diagnostic method, the group opted [...]ver notícia -
Novel Device Detects COVID-19 Antibodies in 5 Minutes
Publicado em 29 novembro 2022Rapid, cheap and accurate tests continue to be essential for epidemiological surveillance and for health services to monitor and contain the spread of SARS-CoV-2. Brazilian scientists have contributed to endeavors in this field by developing an electrochemical immunosensor that detects antibodies against the virus. The innovation is described in an article published recently in the journal ACS Biomaterials Science and Engineering. In search of a novel diagnostic method, the group opted [...]ver notícia -
Technique based on artificial intelligence detects Chagas disease using images taken with smartphone
Publicado em 29 julho 2022When Brazilian immunologist Helder Nakaya visited Evandro Chagas Institute in Belém (the capital of Pará state, Brazil) in 2017, there was a commotion because one of its best microscopists was retiring and much of the knowledge used for fast and accurate identification of the protozoan Leishmania would be lost."I was dismayed by the waste of losing all that expertise, which it had taken decades to acquire. We began researching and trying to train a computer program to use [...]ver notícia