All Research News articles – Page 65
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NewsNew study highlights scale and impact of long COVID
A wide range of biological mechanisms are involved in long Covid, including persistence of the original virus in the body, disruption of the normal immune response, and microscopic blood clotting, even in some people who had only mild initial infections.
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NewsScientists solve mystery of bacterial scavenging machinery
Scientists investigated how the oleate shuttle from FakB2 to FakA kinase works in the Fak system, which is exploited by the zoonotic pathogen Streptococcus suis (S. suis) pathogen to scavenge exogenous fatty acid (eFA).
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NewsStudy highlights factors associated with higher tuberculosis risk in South Africa
Tuberculosis is the world’s top infectious killer. About 10 million people fall ill with the disease every year, and roughly 1.5 million people die because of it, according to the World Health Organization. Additionally, about one-quarter of the world’s population is infected with the disease’s causative agent Myctuberobacterium tuberculosis. ...
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NewsCoinfecting viruses impede each other’s ability to enter cells
Scientists researching phage infection at the level of a single cell investigated whether the number of infecting phages that bind to the bacterial surface corresponds to the amount of viral genetic material that is injected into the cell.
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NewsBiocides are a useful tool to combat antibiotic resistance but appropriate use is vital, scientists suggest
A recent review in Sustainable Microbiology discusses how the use of biocides can promote well-being but must only be used when there are clear benefits.
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NewsClimate anomalies may play a major role in driving cholera pandemics
New research suggests that an El Niño event may have aided the establishment of a novel cholera strain during an early 20th-century pandemic, suggesting climate anomalies could create opportunities for the emergence of new cholera strains.
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NewsWhen it comes to DNA replication, humans and baker’s yeast are more alike than different
Humans and baker’s yeast have more in common than meets the eye, including an important mechanism that helps ensure DNA is copied correctly, reports a pair of studies.
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NewsWarming stops tiny organisms working together
The single-celled organism Paramecium bursaria can absorb and host algae (Chlorella spp), providing benefits for both, but when scientists made the water 5°C warmer, the partnership stopped working – and the algae may even become parasitic.
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NewsComprehensive meta-analysis pinpoints what vaccination strategies different countries should adopt
A new paper offers the first comprehensive meta-analysis examining what types of vaccine intervention strategies have the greatest effect, and whether different intervention strategies work better in different countries.
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NewsShared geographic origin of TB strain and human host could boost risk of infection
For some forms of tuberculosis, the chances that an exposed person will get infected depend on whether the individual and the bacteria share a hometown, according to a study comparing how different strains move through mixed populations in cities.
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News3D models provide unprecedented look at corals’ response to bleaching events
A new study provides a first-of-its-kind glimpse into coral ‘bleaching’ responses to stress, using imaging technology to pinpoint coral survival rates following multiple bleaching events off the island of Maui.
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NewsNasal COVID-19 vaccine halts transmission
Next-generation Covid vaccines that target the virus’s points of entry — the nose and mouth — may be able to do what traditional shots cannot: contain the spread of respiratory infections and prevent transmission.
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NewsGut microbes implicated in bladder cancer
A new study shows that gut bacteria can metabolise carcinogens and cause them to accumulate in distant organs, leading to tumour development.
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NewsNew compound found to be effective against flesh-eating bacteria
Researchers have developed a novel compound that effectively clears bacterial infections in mice, including those that can result in rare but potentially fatal ‘flesh-eating’ illnesses, and could be the first of an entirely new class of antibiotics.
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NewsEngineered human skin bacteria repel mosquitoes for 11 days, study shows
Genetically engineered human skin bacteria can make mice less attractive to mosquitoes for 11 days, a new study reveals.
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NewsScientists uncover role of bacteria in keloid scarring
A new study explores the microbiome of keloids, which are treatment-resistant raised scars. Researchers found higher concentrations of bacteria and different types of bacteria than are found in normal skin, especially in deep layers of the keloid.
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NewsAI opens door to safe, effective new antibiotics to combat resistant bacteria
A large language model—an AI tool like the one that powers ChatGPT—has been used to engineer a version of a bacteria-killing drug that was previously toxic in humans.
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NewsWhat shapes a virus’s pandemic potential? SARS-CoV-2 relatives yield clues
Two of the closest known relatives to SARS-CoV-2 — a pair of bat coronaviruses discovered by researchers in Laos — may transmit poorly in people despite being genetically similar to the COVID-19-causing virus, a new study reveals.
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NewsIncidence of heart attacks and strokes found to be lower after COVID-19 vaccination
A new study involving nearly the whole adult population of England has found that the incidence of heart attacks and strokes was lower after COVID-19 vaccination than before or without vaccination.
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NewsSaunas may be key to helping frogs survive deadly fungal infection
Sun-heated brick ‘saunas’ offer hope to endangered amphibians being wiped out by a fungal infection that has already rendered at least 90 species extinct.