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
Architecture student Magnus Larsson details his bold plan to transform the harsh Sahara desert using bacteria and a surprising construction material: the sand itself. Read More
This episode: Don't have immunity? Create your own! Scientists engineer cells to destroy their HIV infections using the bacterial immune system!
(14.5 MB, 15.8 minutes)
This episode: Engineered phages can both kill bacteria and disrupt their communications!
(14.8 MB, 16.2 minutes)
Here's an interesting essay published in PLoS Biology by Michael Emerman and Harmit S. Malik on paleovirology, a topic recently discussed by Welkin Johnson, on the Small Things Considered blog.
<... Read More
This month we talked with Dr. Christine Salomon, Assistant Professor at the Center for Drug Design in the University of Minnesota. Dr. Salomon’s work intersects chemistry and microbial ecology in the hunt for interesting new natural products with far reaching potential applications. While much... Read More
Thirty years ago this month I arrived in the Department of Microbiology at Columbia University’s College of Physicians and Surgeons (P&S) to start my own laboratory. Thirty is not only a multiple of ten (which we tend to celebrate), but also a long time to be at one place. It’s clearly time to r... Read More
This parasite interacts with many host proteins and modifies the expression of many more genes creating an interactome with almost 3000 links. In addition it exchanges substrates and metabolites with the host, modifying many biochemical parameters. T.Gondii disrupts multiple signalling network... 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
I'm sorry, I may have missed something, but the mechanism behind an effective vaccine is still unclear to me, since infection with F. tularensis does not confer protection. How would a vaccine work?
Katy Bosio replies:
In... Read More
Vincent, Dickson, and Daniel reveal last week's case study and introduce a new one concerning a patient who traveled to Belize.
It causes human mucormycosis and bovine mycotic abortion.
It is distinguished from R.arrhizus by its shorter stalk, and smaller sporangia and spores.
Var.oligosporus : has elongated columellae ; spores less obviously striated.
Var.rhizopodiformis : has ... Read More
For thousands of years, epidemics of contagious diseases were believed to be caused by the wrath of the gods, configuration of stars, or miasma. The association of specific microorganisms with disease came about as a consequence of the work of the German physician Robert Koch. He formulated a se... Read More
In this post from my microbiology/education blog, I discuss a post on Boing Boing recently that used a video I had made of ice nucleation bacteria. Ice nucleation bacteria are very interesting of course, and I link to the Boing Boing post. In addition, I provide an additional video of students... Read More
Chimpanzees from African sanctuaries carry drug-resistant, human-associated strains of the bacteria Staphlyococcus aureus, a pathogen that the infected chimpanzees could spread to endangered wild ape populations if they were reintroduced to their natural habitat, a new study shows.
The study ... Read More
Both Nature and the New York Times have weighed in on the resumption of influenza H5N1 research. In an editorial from 23 January 2013, Nature opines that “Experiments that make deadly pathogens more dangerous demand the utmost scrutiny”. They call for a quantitative risk-benefit analysis of H5N1... Read More
Hi Dr.s R&D,
I thought you might be interested in this news article about aquaculture in Hong Kong. Perhaps it's time for another fish parasite episode? I love the podcast, keep up the great work.
Bill writes: Read More
This episode: Flu vaccine made by bacteria!
A new drug acts as a roadblock for malaria, curing mice of established infection, according to a study in The Journal of Experimental Medicine. Treatment was not associated with obvious side effects, suggesting that the drug may also be safe and effective in humans. Read More