An international team of researchers has devised a technique to study how ocean-dwelling microbes respond to a compound that signals good foraging patches for fish and mammals, but also contributes to cloud-forming sulfur aerosols. The research offers further insight into the chemical ecology of... Read More
Using ever-growing genome data, scientists with the Department of Energy's (DOE) Oak Ridge National Laboratory and the University of Tennessee are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting impo... Read More
Darrick and Scott write:
Hello Professor Racaniello,
We are two graduate students from the University of Guelph in Canada studying oncogenic sheep betaretroviruses and we are big fans of the show. Part of the reason we like the show so much is that we can use ... Read More
On episode #91 of the podcast This Week in Virology, Vincent, Dickson, Alan, Rich and Welkin discuss the nature, origin, and evolution of endogenous retroviruses (ERVs), and the recent finding of en... Read More
The bursts of rainbow colors in this photograph are mesmerizing, yet microbes are fighting for their lives in the background. Michael P. Zach of the University of Wisconsin-Stevens Point, snapped this image of a salt sample he collected in a hot, arid valley near Death Valley National Park in Ca... Read More
The Centers for Disease Control and Prevention in Atlanta put out a loud and definitive proclamation in anticipation of its participation in the International Conference on Emerging Infectious Diseases, held Sunday through Wednesday in Atlanta:
"Report suggests nearly 5 percent exposed to de... Read More
On May 25th, 2010 science writer Carl Zimmer gave a keynote address at the American Society for Microbiology's General Meeting in San Diego, California. The presentation entitled “Newspapers, Blogs, and Other Vectors: Infecting Minds with ... Read More
An update now on a story we're been following closely about a health risk most people don't know about - farmers feeding antibiotics to healthy animals - just to spur their growth. Congress urged them this week to stop doing that because overuse of antibiotics in animals is creating new, drug-re... Read More
A parasite afflicting nearly 12 million people across the world relies on a family of genes that should make it vulnerable to compounds developed to treat cancer and other disorders, new research by scientists at Washington University School of Medicine in St. Louis reveals.
The study appear... Read More
A two-step flu vaccine using DNA to "prime" the immune system and then a traditional seasonal influenza vaccine may be able to protect against all strains of the virus -- providing a long-sought "universal" flu vaccine, U.S. researchers said on Thursday.
The team at the National Institute of ... Read More
Methane seeps, which play a role in the global dynamics of this potent greenhouse gas, may be even more complicated than we thought. A perspective in this week's Science describes several new research papers on the release of methane at the level of the ocean floor. Their conclusions run counter... Read More
How a retrovirus, like HIV, reproduces and assembles new viruses is different than previously thought, according to Penn State College of Medicine researchers. Understanding the steps a virus takes for assembly could allow development of a way to prevent the spread of retroviral diseases.
The... Read More
In any battle, sizing up one’s opponent is a critical first step. For researchers fighting a bacterial infection, that means assessing every nook and cranny of the malicious microorganism and identifying which ones to attack.
At the Center for Biological Research of the Spanish Research Counc... Read More
Mongrel dogs that live amongst the rural poor may hold the key to controlling Chagas disease, a condition affecting 10 to 12 million people in Latin America, killing more than 15,000 a year.
Chagas disease is caused by the parasite Trypanosoma cruzi that is transmitted by the triatomine insec... Read More
A "malaria-proof" mosquito has been created by scientists who have engineered a genetic "on" switch that permanently activates a malaria-destroying response, according to their report in the journal Public Library of Science Pathogens.
If these mosquitoes are successfully introduced into the... Read More
In all organisms, RNA synthesis is carried out by proteins -- known as RNA polymerases (RNAPs) -- that transcribe the genetic information from DNA in a highly-regulated, multi-stage process. RNAP is the key enzyme involved in creating an equivalent RNA copy of a sequence of DNA. This transcripti... Read More
A continuacion: consumidores de drogas por vía parenteral; un polímero bacteriano que elimina la contaminación; compitiendo para diseminar la infección; y las aflatoxinas en el alpiste. Read More
It’s not just the bugs in our guts that are surprisingly friendly. It’s our viruses, too.
After slowly coming to appreciate the importance of symbiotic bacteria for running our bodies, scientists have wondered whether viruses also help. Now a gene-hunting expedition in the gut has found it te... Read More
Next generation sequencing is a powerful method increasing in popularity for use in metagenomic and transcriptomic analysis in environmental microbiology. Compared to Sanger sequencing, next generation allows for sequencing of the complete genomic content of a sample without the need to make clo... Read More