Scanning electron micrograph of methicillin-resistant Staphylococcus aureus and a dead human neutrophil. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More
Daniel: I was fascinated by your answer to the case from TWIP 91 - the life cycle of the southeast Asian worm (I won't even try to spell it.) Re early symptom coughing & wheezing: if the ED did a chest X-ray out of concern about the lungs, would the... Read More
This episode: Cold-loving bacteria can repair surprising amounts of DNA damage even sub-zero temperatures!
(9.1 MB, 9.9 minutes)
Bacteria isolated from the Siberian arctic permafrost are exposed to a lot of radiation over thousands of years, but somehow they are able to repair... Read More
Current smoking cessation aids fail in 80 to 90 percent of smokers. The idea behind this therapy would be to destroy nicotine before it reaches the brain—depriving a person of the “reward” of nicotine that can trigger relapse into smoking. Pseudomonas putida, a bacterium typically found in tobac... Read More
This episode: A protein from gut bacteria has been tentatively linked with a human protein related to eating disorders!
(11.4 MB, 12.4 minutes)
COLUMBIA, Mo. - HIV, or human immunodeficiency virus, is the retrovirus that leads to acquired immunodeficiency syndrome or AIDS. Globally, about 35 million people are living with HIV, which constantly adapts and mutates creating challenges for researchers. Now, scientists at the University of M... Read More
ANYONE who walks in the woods will be familiar with witches’ brooms (pictured). Many trees sport these bushy tumours, which have a variety of causes. An important one is a group of bacteria called phytoplasma that are, in turn, carried from plant to plant by sap-sucking insects such as leafhoppe... Read More
This episode: Sampling microbial populations in sewage from cities could reveal differences in the human populations, such as prevalence of obesity!
(9.1 MB, 9.9 minutes)
This episode: Bacteria can connect to each other with tiny tubes to exchange nutrients!
(10 MB, 10.9 minutes)
This episode: Carbon monoxide-eating bacteria get modified to produce more useful products!
(16 MB, 17.5 minutes)
... Read More
This episode: Bacterial nanowires are made of the cells' outer membranes!
(9.75 MB, 10.6 minutes)
Dr. Naveed Ahmed Khan, Professor and Chair, Department of Biological and Biomedical Sciences, The Aga Khan University, Pakistan Read More
For fours years I have taught a virology course at Columbia University and have posted videos of each lecture on my website, virology.ws, and at iTunes University. Nearly 100,000 individuals have subscribed to my virology course at iTunes University. Now Columbia has signed an agreement with Cou... Read More
The human “microbiome”—the trillions of bacteria, yeasts, and other microscopic creatures that live inside a human body—has been one of the major science stories in recent years. It seems that barely a week goes by that we don’t learn something new about the relationship between the human body a... Read More
This episode: Bacteria engineered to produce liquid fuel can eat carbon dioxide and hydrogen from solar-powered water-splitting!
(11.2 MB, 12.25 minutes)