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TWiM #63: Superantigens, S. aureus, and the armpit microbiome



Hosts: Vincent RacanielloMichael Schmidt and  Read More

TWiM 63 Letters

Hugh writes:


Hi Vincent,


I really enjoyed hearing about Carl Woese in TWiM #50. You mentioned the controversy surrounding of Woese's 1977 discovery of Archea as a third domain of life, as it contradicted entrenched scientific beliefs. Although Archea soon foun... Read More

Victory in the Battle against Brucella: From bench to battlefield

After six years of focused research, Rice-Ficht, director of the Center for Microencapsulation and Drug Delivery at the Texas A&M Health Science Center (TAMHSC), her co-principal investigators and team are nearing completion on the first human Brucella vaccine. Brucella bacteria cause brucellosi... Read More

Your Gut Bacteria May Predict Your Obesity Risk

Bacteria in people's digestive systems -- gut germs -- seem to affect whether they become overweight or obese, and new research sheds more light on why that might be.

The findings, from an international team of scientists, also suggest that a diet heavy in fiber could change the makeup of the... Read More

Amazon Virus Moves Quicker than Dengue

An Amazon virus that causes symptoms similar to those of dengue had part of its action mechanism unraveled by researchers from UFRJ (Federal University of Rio de Janeiro).

Click "source" to read more. Read More

Mammals harbor ~320,000 viruses. Could $6.3 billion discover them all?

What will the next big zoonotic virus be? Most emerging infectious diseases are zoonoses, and many, if not most, of them are caused by viruses, but right now we have little idea what viruses are out there in livestock and wildlife, let alone which one might be next in line to cause a human pande... Read More

Japan producing vaccine against H7N9 bird flu

The Ministry of Health, Labor and Welfare announced on Monday that it will pursue the production of vaccine against the H7N9 avian flu virus that is still spreading across China. The ministry aims to develop the vaccine as soon as possible before the virus mutates and imposes further risk to hum... Read More

Some flu vaccines promise a little more protection

Flu vaccination is no longer merely a choice between a jab in the arm or a squirt in the nose. This fall, some brands promise a little extra protection.

For the first time, certain vaccines will guard against four strains of flu rather than the usual three. Called quadrivalent vaccines, these... Read More

Cracking bacteria's secrets may lead to new treatments

Scientists have found another chink in bacteria's armour, mapping for the first time the structure of a protein that plays an important role helping infection gain a foothold in the body.

Published today in Nature a group of international scientists from Monash University, the National Instit... Read More

Mtb Craves Sweets

Tuberculosis is an ancient disease that still affects millions of people, largely in developing countries. A startling statistic valued by fundraisers for tuberculosis research is that this devastating disease claims three lives every minute worldwide. Since a major factor underlying this import... Read More

Gut Lecture

Over the many years that I taught microbiology to medical students, perhaps my least favorite lecture was the one on the “normal flora,” what we now call the microbiome. What used to make me grumpy was that I could talk only in vague generalities, rambling about the intestinal flora being an imm... Read More

TWiV 248: TWiP infects TWiV



Hosts: Vincent Racaniello, Dickson Despommier, and Rich Condit


Vincent, Dic... Read More

Bacteria Supplemented Their Diet to Clean Up After Deep Water Horizon Oil

Bacteria living in the Gulf of Mexico beaches were able to 'eat up' the contamination from the Deep Water Horizon oil spill by supplementing their diet with nitrogen, delegates at the Goldschmidt conference will be told today, Friday 30th August.

Professor Joel Kostka will tell geochemists ga... Read More

Infrared light used to outwit sneaky, deadly bacteria

Researchers have devised a way to turn the tables on a sneaky strain of bacteria that can cause life-threatening diseases, based on a technique using infrared light.

Scientists at the University of Veterinary Medicine, Vienna said the technique lets them differentiate strains that can cause ... Read More

Dueling Infections: Parasitic Worms Limit the Effects of Giardia, and Vice Versa

If the idea of hookworms makes you shudder, consider this: Those pesky intestinal parasites may actually help your body ward off other infections, and perhaps even prevent autoimmune and other diseases.

Studying members of the Tsimane, an indigenous population in the lowlands of Central Boliv... Read More

Oral Infections Causing More Hospitalizations

Left untreated, a serious tooth abscess can eventually kill.

In 2007, Deamonte Driver, a 12-year-old boy in Maryland, died after bacteria from an abscessed tooth spread to his brain. The case drew widespread media attention, and his is the cautionary tale cited whenever politicians and advoca... Read More

BacterioFiles Micro Edition 133 - Microbe Manacles Metal, Muzzles Microbe

This episode: A strain of E. coli helps reduce severity of Salmonella infection by competing with it for iron in the gut!




Down... Read More

Gut bacteria 'too low' in quarter of population

Scientists say that around a quarter of the population, particularly those who are obese, have 40% less intestinal bacteria than needed to maintain good health, according to a study published in the journal Nature.

Researchers from Europe conducted a genetic analysis on human gut microbial co... Read More

Deep microbes live long and slow

A diverse range of life forms exists deep below Earth's surface, scientists have concluded, but they survive at an incredibly slow pace.

Long-lived bacteria, reproducing only once every 10,000 years, have been found in rocks 2.5km (1.5 miles) below the ocean floor that are as much as 100 mill... Read More

Staying Healthy Takes Guts Full of Microbes (podcast)

Everywhere you go, the trillions of microbes in your gut go too. And that's a comforting thought. Because according to a new study, a more diverse population of intestinal bacteria is linked to better health. The work is in the journal Nature. [Emmanuelle Le Chatelier et al, Richness of human gu... Read More

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