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microbiology

Green bacteria on a blue background.
Mutations Wire Salmonella to Last
Mariella Bodemeier Loayza Careaga, PhD | May 28, 2024 | 4 min read
Genetic changes attenuated Salmonella’s virulence, potentially enabling the bacteria to cause chronic infections in humans.
Three covid rapid antigen tests displaying (left to right) invalid, positive, and negative results.
What Does a Positive Covid Test Look Like?
Christie Wilcox, PhD | May 10, 2024 | 7 min read
Lateral flow tests for COVID-19 can be very accurate and specific when used as directed, but introducing acidic fluids can cause the tests’ detecting antibodies to clump, which may read as a positive result.
What Could Cause the Next Pandemic?
What Could Cause the Next Pandemic?
The Scientist | 2 min read
Scientists prepare for the future by filling in the research gaps between zoonotic viral reservoirs, emerging viruses, and human immune defenses.
White and white and black mice in an overcrowded cage.
Viruses Keep Mice from Stressing Out
Shelby Bradford, PhD | May 9, 2024 | 3 min read
Gut viruses influence behavioral responses in mice and may be important players in the gut-brain axis.
Light shines through a dilated pupil to illuminate the light red retina, blood vessels, optic disc and macula.
Gut Bacteria Slip into the Eye
Rachael Moeller Gorman | May 9, 2024 | 5 min read
A gene mutation causes porous gut and retinal barriers, allowing bacteria to travel from one to the other, triggering retinal degeneration in mice.
Scientist working in a biosafety cabinet
Cell Culture Conquests: Finding and Defeating the Invisible Enemy
The Scientist and MilliporeSigma | 3 min read
Cutting-edge reagents, kits, and techniques provide a robust solution to cell culture mycoplasma contamination.
An illustration of a<em >&nbsp;</em>macrophage internalizing <em>Staphylococcus aureus</em> through phagocytosis and presenting antigens to a T cell with many bacterial cells surrounding the immune cells.
Tackling a Pathogen That Leaves a Lasting Impression
Charlene Lancaster, PhD | May 6, 2024 | 5 min read
Staphylococcus aureus vaccine efficacy depends on the immune imprints from past exposures to the microbe.
A scientist is at his desk with two computer monitors in front of him.
Behind the Scenes of the Publication Process
Shelby Bradford, PhD | May 1, 2024 | 2 min read
What happens on the other side of the paper publication submission portal? Christopher Rodrigues, who serves as a journal associate editor, revealed the process.
Discover the microbiome&rsquo;s role in diabetes&nbsp;
A Question of Balance: How the Gut Microbiome Influences Diabetes
The Scientist | 1 min read
The presence of beneficial or detrimental microbes pulls the host toward health or disease.
A microscopic image of a pink berry bacterial aggregate.
Multicellular Bacteria Evolve Defenses that Resemble the Immune System
Kamal Nahas, PhD | Apr 30, 2024 | 5 min read
Bacterial superorganisms must evolve defenses to fight off infections, and microbiologists found that they use a weapons cache coincidentally similar to that of the human immune system.
Collection of microbes superimposed over a human illustration.
Microbial Clocks for Corpses
Aparna Nathan, PhD | Apr 24, 2024 | 4 min read
Microbes on decomposing bodies inform forensic investigations.
Brush Up: Quorum Sensing in Bacteria and Beyond
Brush Up: Quorum Sensing in Bacteria and Beyond
Deanna MacNeil, PhD | 4 min read
Microbes communicate with quorum sensing to coordinate their behavior in response to how many neighbors they have.
3D rendered image of a bacteriophage virus capsid.
Virtual Viruses Reveal Complex Genomic Dynamics
Aparna Nathan, PhD | Apr 24, 2024 | 4 min read
Researchers used new simulations to obtain the first structures of elusive viruses.
Abstract drawing of microbes.
Exploring Microbial Dark Matter
Kamal Nahas, PhD | Apr 19, 2024 | 4 min read
An open-source search engine helps scientists identify hundreds of microbial metabolites in a matter of seconds. 
A person holding a section of his face and looking in to his brain through a magnifying glass stock illustration
Science Philosophy in a Flash - A Look at Aging Through Young Eyes 
Iris Kulbatski, PhD | 1 min read
Aimée Parker shares how her childlike curiosity and collaborative spirit motivate her scientific pursuits.
Flagellated rod-shaped bacteria live on intestinal tissue.
Clostridia to the Rescue
Shelby Bradford, PhD | Mar 27, 2024 | 3 min read
Some commensal bacteria help shore up intestinal walls in mice, which can prevent food allergies.
Individual bacterial transcriptomes each plotted as a single point create a ring-shaped structure.
Rapidly Dividing Bacteria Coordinate Gene Expression and Replication
Kamal Nahas, PhD | Mar 15, 2024 | 4 min read
E. coli divides faster than it can replicate its genome, while simultaneously expressing its genes. Scientists recently revealed the intricate molecular coordination that makes this possible.
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The Scientist Speaks - Rising From the Dead: How Antibiotic Resistance Genes Travel Between Current and Past Bacteria
Nele Haelterman, PhD | 1 min read
Heather Kittredge and Sarah Evans discuss the environmental conditions that facilitate natural transformation in bacteria’s native habitat.  
bacteria and DNA molecules on a purple background.
Engineering the Microbiome: CRISPR Leads the Way
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 10+ min read
Scientists have genetically modified isolated microbes for decades. Now, using CRISPR, they intend to target entire microbiomes.
TK
Infographic: Engineering Microbiomes with CRISPR
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 2 min read
Researchers are using CRISPR for precise genetic manipulation of human-associated microbes as a promising avenue for improving human health.
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