I'm a computer programmer who listens to podcasts on my long commute. The highest science education that I've had was college Chemistry. As an Electrical Engineer the science classes we took tended to not be biology oriented, so while so... Read More
The Global Water Challenge (GWC) is a coalition of leading organizations in the water and sanitation sector. In this video GWC finalist David Kuria of Ecotact Limited, a Kenyan company dedicated to bringing public toilets to an area where there were only two for 60,000 people, discusses the need... Read More
Hi Vincent and Dickson,
I enjoy TWIP, and often recommend it to my students. I'm a parasitologist, primarily a Leishmaniac, but I have learnt a lot from TWIP. I find it both more educational and entertaining than Car Talk.
The disc... Read More
Host: Vincent Racaniello
Guest: Read More
Although Avery, MacLeod, and McCarty showed in 1944 that nucleic acid was both necessary and sufficient for the transfer of bacterial genetic traits, protein was still suspected to be a critical component of viral heredity. Alfred Hershey and Martha Chase showed that this hypothesis was incorrec... Read More
In regard to your question as to cases of known alteration of host behavior by virus that increases the rate of contact among hosts (Twiv 70), the most dramatic example is given by rabies. This extraordinary virus can convert a neurologically and behaviorally... Read More
Using genetic dissection and photothermal nanoblade delivery, a recent paper published in PNAS by Jeff F. Miller, MD., Chair, Microbiology, Immunology, & Molecular Genetics, UCLA, and others, presents data that suggest that the primary means for intercellular spread of Burkholderia pseudomallei ... Read More
A new paper in PLoS recommends two vaccination strategies to better prevent whooping cough.
"In the absence of adolescent or adult vaccination, pertussis incidence among adults is predicted to more than double in 20 years. Implementing an adult program in addition to childhood and adolescent... Read More
This episode: Virus helps to modify mice such that certain colors of light can cause or prevent pain!
(10 MB, 10.8 minutes)
Abstract - Bacterial communities in the airways of cystic fibrosis (CF) patients are, as in other ecological niches, influenced by autogenic and allogenic factors. However, our understanding of microbial colonization in younger versus older CF airways and the association with pulmonary function ... Read More
Vincent, Alan, Rich and Kathy discuss the association of a virus with sea star melting disease, and the finding of a phycodnavirus in the oropharynx of humans with altered cognitive functions.
The need to re-formulate the influenza virus vaccine in response to viral antigenic drift and shift makes for complex logistics of vaccine production and administration. Surveillance programs must be conducted each year to identify strains that are likely to predominate and cause disease. Wouldn... Read More
This episode: Bacteria with engineered circuits can detect and keep a record of stuff in their environment, like in the gut!
(14.6 MB, 15.9 minutes)
This episode: Bacteria could reduce mercury's toxicity in their environment!
(6.5 MB, 7 minutes)
Methanotrophs (bacteria that use methane for their carbon and energy) secrete siderophore-like compounds that are usually used to chelate copper and make it more bioavailable, but ... Read More
This episode: Spraying cyanobacteria could turn deserts into useful land!
(9.3 MB, 10.13 minutes)
This episode: A sample of bacteria in city air!
The New York Times has published a nice FAQ ,if you will, about H1N1 and what the general public should keep in mind in terms of worry, protection and symptoms. The article also talks about what public health response is feasible and should be expected. Read More