A permissive vaccine prevents disease in the immunized host, but does not block virus infection. Would a permissive vaccine lead to the emergence of more virulent viruses?
This hypothesis is based on the notion that viruses which kill their hosts too quickly are not efficiently transmitted, a... 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
Host: Jeff Fox with special guests, Øjvind Moestrup, Peter Ulvskov, and Jesper Harholt.
Øjvind Moestrup and Peter Ulvskov, both at the University of Copenhagen and Jesper Harholt at Carlsberg Laboratory, also in Copenhagen, Denmark, talk with Jeff Fox about their hypothesis about terr... Read More
Use of the rotavirus vaccine Rotarix in the US has been temporarily suspended because the vaccine was found to be contaminated with porcine circovirus 1 DNA. The discovery was made in the laboratory of Dr. Eric Delwart, who has provided insight into what was found in Rotarix, and why he was anal... Read More
The Koala retrovirus (KoRV) continues to spread within Australia, according to results of a new analysis of a larger sample size from a wider geographical range than was previously studied. Read More
I'm a graduate student working in mycoplasmology and I must say I've been overjoyed to hear the past few episodes mention our tiny friends!
Elio's mention of their unique mechanism of moving ("Gliding Motility") made... Read More
The genomes of most higher organisms contain sequences from retroviral genomes called endogenous retroviruses (ERVs). These are DNA copies of retroviral RNAs that are integrated into the germ line DNA of the host, and passed from parent to offspring. In most species the infections that lead to g... Read More
One of the basic requirements of evolution is variation in a population upon which selection can act. One of the sources of variation is mutation in DNA. These changes may or may not be reflected in the ensuing amino acid sequence of a protein. This exercise explores the additive effects of m... Read More
Microbiology World is a bi-monthly e-magazine, which publish articles based on Microbiology and related fields of Life Sciences. Microbiology World has been established in 2013 and has been supported by several organizations.
I, editor in chief of this magazine, would be glad... Read More
This episode: Proteins from gut bacteria seems to affect hunger and satiety in their (rodent) hosts!
(7.7 MB, 8.3 minutes)
This episode: Bacteria in hydrothermal vents that feed their host tubeworms evacuate when their hosts perish!
(9 MB, 9.8 minutes)
I did a study of hand washing and hand sanitizer. Is anyone on the list willing to help me identify what grew from my unwashed and even washed hands? I attach three photos representing the yellow, white and orange growths found after several days on agar plates. Thank you so much in advance. Read More
Here is a follow-up to last week’s article that described a case of variant Creutzfeldt-Jacob disease in a Texas resident caused by ingestion of BSE-contaminated beef 14 years ago.
A 59 year old male patient was admitted to the trauma unit in Lancaster, PA with a self-inflicted gunshot wound ... Read More
Hosts: Vincent Racaniello, Read More
The TWiVerati revisit possible sexual transmission of Zika virus, and reveal how a cell protein that allows hepatitis C virus replication in cell culture enhances vitamin E mediated protection against lipid peroxidation.
Hosts: Read More
As my Fall semester approaches, I am reflecting on last Fall. I taught a freshman seminar course revolving around symbioses and parasitism, and was fortunate to have many well known scientists be willing to "virtually visit" my class! Here is my report from last year on the great Jack Gilbert.... Read More
Vincent speaks with Sandy Weller about her career and her work on the mechanisms of synthesis, maturation, cleavage and packaging of viral DNA genomes.
Host: Vincent Racaniello
Guest: ... Read More