I was fascinated by your conversation about government censorship of science (TWiM 24). To further criticize the government's move, I'd like to point out that the Soviet's bioweapons program has been leaked in bits and pieces over the years, yet we don't see terrorists able to recreate those projects. In fact, aspiring bioterrorists find themselves recruiting Soviet era scientists rather than doing it themselves, which suggests the information alone is not dangerous. Here are three examples:
1. Putting B. anthracis pXO1 and pXO2 plasmids into B. subtilis, a common flora 2. Splicing in myelin genes into viruses to induce MS in survivors 3. Creating chimeras between VEE and smallpox
Perhaps you could do a TWIM on biodefense?
Hi Vincent and gang
Listening to the end of the last episode, you mention the possibility of there being phage that pack magnetite, from magneto tactic bacteria.
I think this is something that I could do, just for fun. I'm assuming that the phage can be separated by filtration, then concentrated by magnetic means, and the resulting material (if any), could then be added to some of the bacteria. If phage are present then, a good proportion of the bacteria should be killed, hopefully this provides detection, since I lack anything but simple equipment.
I thought would ask, is this reasonable?
If so, can anyone suggest where I could get information on culture of magneto tactic bacteria. Getting hold of some sounds easy enough, but someone (sorry I don't recall who) said that growing them is not trivial. Any info, or pointers to sources of information would be appreciated.
Many thanks for the great group of podcasts. Keep up the good work!
I have filled out the listener survey, but being in the UK, I'm not sure how much that helps.
Dear TWiM doctors,
I am an enthusiastic Virologist who has recently become fascinated with Immunology. In addition, inspired by Vincent’s thirst for all knowledge, I have started listening to TWiM in an effort to bridge the vast gap in my knowledge and be less of a virus snob. TWiP is next!
I just finished listening to TWiM episode 22, where you discussed microbial infections encountered in the emergency room. You talked about how wiping out the normal gut flora with an antibiotic can encourage the overgrowth of C. difficile, and how this can cause some people to eventually have to lose their colon. I was very shocked by this information, especially when you mentioned that Clindamycin was a common antibiotic that could cause this kind of imbalance in gut flora. Over the past few years I have used a Clindamycin foam to treat a life-long acne problem. While this treatment is topical, I am aware that many topically administered drugs can have systemic effects. Could you please provide some insight into the possible long term side effects of this drug?
Thank you so much!
P.S. While you don’t do weekly picks on TWiM, I would like to recommend The Ghost Map by Steven Johnson. It is a highly captivating account of the cholera epidemic in 19th century London.
Howard writes: After listening to the fascinating podcast (TWIM #26) on the possible involvement of microbes and autism, I ran across the following article ( http://www.nutritionjrnl.com/article/S0899-9007(11)00261-9/abstract ) discussed in the Winter newsletter of the International Probiotics Association. The links between neurological and immunological issues grow more numerous.
Howard Cash, Ph.D. Ganeden Biotech Mayfield Heights. OH