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Ebola Virus explained

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TWiV 305: Rhymes with shinola

Vincent, Alan, and Kathy continue their coverage of the Ebola virus outbreak in West Africa, with a discussion of case fatality ratio, reproductive index, a conspiracy theory, and spread of the virus to the United States.


Hosts:  Read More

Endospore Stain Bacillus cereus

B. cereus was grown on urea agar for 6 days at 37 degrees C to induce spore formation.
The endospore stain was done using malachite green as the primary stain and safranin as counter the stain. Malachite green was applied to the smear and set over a steaming water bath for 10 min (stain was no... Read More

Staphylococcus aureus

Scanning electromicrograph of Staphylococcus aureus bacteria. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More

How Bacteria in Placenta Could Help Shape Human Health

The placenta is full of microbes, a new study finds, raising questions about how that ecosystem and mothers' oral health influence the risk of pre-term birth.

Even before a baby is born a microbial ecosystem takes up residence in the placenta, creating a microbiome that may help shape the new... Read More

TWiV 269: Herpesvirus stops a nuclear attack

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Hosts: Vincent Racaniello, Dickson Despommier Read More

Interview of Dr. Tim Sandle

Q) Dr. Tim Sandle, the well known researcher, professor, author and science communicator. It is much interesting for me to take an interview of an eminent person who is well known for the communicating science. Starting from your early childhood life, how you used to take science as that time?
... Read More

TWiM 71 Letters

Zachary writes:


How long does it take to become a microbiologist?


Tim writes:


I'd never heard of magnetotactic bacteria before and thought perhaps you guys might find this interesting. Not sure if you've mentioned these on TWIM before,... Read More

'Sterile' Urine May Be a Myth

Many people have heard that human urine is devoid of germs, but a new study seems to question that idea.

"Doctors have been trained to believe that urine is germ-free," Dr. Linda Brubaker, dean of Loyola University Chicago Stritch School of Medicine, said in a university news release. "These ... Read More

Dangerous enterohemorrhagic bacteria E. coli

Most Escherichia coli (E.coli) strains are harmless.But some, like enterohemorrhagic E. coli (EHEC), are a hazard to human health and life. Read More

Bacterial food web may be key to cystic fibrosis

Cystic fibrosis patients suffer from chronic bacterial infections and thick mucous in their lungs, due largely to a combination of microbial infections and resulting inflammation. A common pathogen, Pseudomonas aeruginosa, which can lay dormant in healthy individuals, becomes virulent in the lun... Read More

In Search of the Perfect Gut Microbiome with a Tribe of Tanzanian Hunter-Gatherers

It might sound strange to say that humans have forgotten what human-food is, but many scientists believe this is the case. For thousands of years, the environment in which humans lived evolved at a glacial pace—our nutrition and culture changed slowly, and our bodies adapted to it at a matching ... Read More

Small microbes almost killed all life on Earth, study suggests

Tiny microbes on the bottom of the ocean floor may have been responsible for the largest extinction event our planet has ever seen, according to a new study.

These microbes of death were so small, that 1 billion of them could fit in a thimble-full of ocean sediment, and yet, they were almost... Read More

You'll Want To Wash Your Hands Immediately After Reading This (Infographic)

Germaphobes, maybe you're on to something.

Sickness-causing bacteria and viruses can lurk on surfaces long after they're expelled in an infected person's sneeze or snot. Some can even stay on a surface for months, given the right conditions. While the ability of these microorganisms to actual... Read More

Stanford University Bioengineer Creates Organic Microbe-Powered Video Games

Bioengineer Ingmar Riedel-Kruse of Stanford University has created a series of games where players control organic microbes.

The games, which you can see showcased in the video below, places a collection of single-celled protozoans called paramecia in a thumbnail-sized chamber with electrode-... Read More

New Drugs Use Cell "Garbage Disposal" to Kill Bacteria

A new class of molecules called acyldepsipeptides—ADEPs—may provide a new way to attack bacteria that have developed resistance to antibiotics.

Researchers have discovered a way to increase the potency of ADEPs by up to 1,200 times. Their findings appear in the Journal of the American Chemica... Read More

Ebola’s ‘Fist’: U.Va. Unlocks How Deadly Virus Smashes Into Human Cells

Researchers at the University of Virginia School of Medicine have discovered how the deadly Ebola virus punches its way into the cytoplasm of cells. The finding identifies an important target for blocking the infection process of this incurable disease that many fear may be used for bioterror.
... Read More

Scientists for Science

Scientists for Science are confident that biomedical research on potentially dangerous pathogens can be performed safely and is essential for a comprehensive understanding of microbial disease pathogenesis, prevention and treatment. The results of such research are often unanticipated and accrue... Read More

'Paleo Ale' Brewed From Yeast Found On A 40-Million-Year-Old Whale Fossil

A Virginia brewer soon plans to serve a beer made from yeast found hanging out on a 40-million-year-old whale fossil, the blog Symbiartic reports. Depending on your disposition, I imagine you're reacting in one of two ways right now, "Yecchh!" or "Cool!" The beer will be called Bone Dusters Pale... Read More

Conidiophores in Neurospora crassa

This is an 3D image of conidiophores of the filamentous fungus Neurospora crassa. Conidiophores are hyphae which differentiate to produce asexual structures named spores or conidia. The image taken using a confocal microscope shows conidiophores stained with a fluorophore which stains components... Read More

Light zaps viruses: How photosensitization can stop viruses from infecting cells

A UCLA-led team of researchers has found evidence that photosensitizing a virus's membrane covering can inhibit its ability to enter cells and potentially lead to the development of stronger, cheaper medications to fight a host of tough viruses.

The UCLA AIDS Institute study, published in th... Read More

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