This episode: A virus influences the competition between two species of parasitoid wasp!
It has long been known that viruses, in addition to their own genomes, encapsidate extraneous nucleic acids. Although this phenomenon has been verified in the prokaryotic world, in eukaryotes, the significance of these alternative nucleic acids could just be trivial, or, quite possibly evolutio... Read More
Babies delivered by caesarean are at a higher risk of becoming overweight or obese because they are not exposed to protective bacteria in the mother's vagina, international research has found.
The research, conducted by the Finnish paediatrician Erika Isolauri and to be presented in Sydney to... Read More
It may sound odd that bacteria can actually reduce allergy symptoms. But, certain bacteria can reduce inflammation in the body, improve nutrient absorption, and reduce nasal and sinus symptoms linked to allergies. Of course, not just any bacteria will do.
Research by scientists at the Osaka ... Read More
State and federal health officials are investigating how a rare and virulent bacteria strain appears to have killed a young researcher at a VA Hospital's infectious diseases lab in San Francisco, setting off alarms that the man's friends and fellow researchers also may have been exposed.
The ... Read More
Our days of crying over spoiled milk could be over, thanks to Cornell food scientists.
Milk undergoes heat treatment -- pasteurization -- to kill off microbes that can cause food spoilage and disease, but certain bacterial strains can survive this heat shock as spores and cause milk to curdle... Read More
When we think about global warming, we tend to fret about things we can see: plants, animals, the polar ice caps. But the effects of climate change may go much deeper: into the earth itself. Because a new study shows that temperature controls where soil-dwelling microbes live. The findings are i... Read More
Peter Palese and Taia Wang have written a compelling article that uses scientific facts to address the controversy over publication of research involving transmission of avian influenza H5N1 in ferrets. In response to calls in the media to destroy the viruses, curtail the research, and protect t... Read More
Synthetic biology is getting a boost. So far, most researchers have designed their synthetic circuits using transcription factors found in bacteria. However, these don’t always translate well to nonbacterial cells and can be a challenge to scale. Now, researchers have come up with a new method t... Read More
It is well understood that multiple factors contribute to the dynamics of the gut microbiota residing in an animal host. However, little is known about how bacterial microbiotas change during and after recent speciation events in their hosts. In this Evolution paper, Vanderbilt researchers repor... Read More
I love your podcast! I am a postdoc in Joe DeRisi's lab at UCSF and I know that right now I am supposed to be aiming for a faculty job. But my real goal is to discover something cool enough to end up on TWIV.
A... Read More
Influenza H5N1 virus frightens many because of the widely quoted case fatality ratio of >50%, which is based on the number of deaths among the fewer than 600 cases confirmed by the World Health Organization. Such fear is misguided, because it is likely that the fatality ratio is far lower. For e... Read More
When 22 bird flu experts meet at the World Health Organization this week, they will be tasked with deciding just how far scientists should go in creating lethal mutant viruses in the name of research.
The hurriedly assembled meeting is designed to try to settle an unprecedented row over a cal... Read More
Be part of the studio audience for the American Society for Microbiology 2013 General Meeting's live internet talk show, ASM Live. Host Stanley Maloy, Ph.D., Professor of Microbiology and Dean of th... Read More
Americans have been on an antibacterial kick for the past several years. Our hand soap, dish soap, and body wash have morphed into an arsenal of bug-killing napalm, eliminating all but the heartiest of bacteria.
And there are, indeed, some scary microbes crawling around out there—Staph and C.... Read More