Aunque el género Mycobacterium es asociado a infecciones tales como la lepra y la tuberculosis, hay un gran número de especies que son por lo general no patogénicos o patógenos oportunistas. En el episodio de hoy tenemos al Dr. Ricardo Santos del Instituto Superior Técnico de Lisboa, Portugal... Read More
In the 1800s English poet William Blake famously challenged his readers to “see a world in a grain of sand.” If only he had owned a modern microscope. Thanks to increasingly powerful optical tools, we now know that beneath the skin of every leaf, inside each speck of dirt, and within our own blo... Read More
Last year, I wrote about finding the carcasses of dead loons and cormorants on the shores of a Northern Lake Michigan beach. Now officials in New York are reporting similar waterbird deaths from Type E botulism on Lake Ontario.
Sadly, finding type E botulism in waterbirds is becoming an “annu... Read More
Scientists from Singapore’s Nanyang Technological University (NTU) have discovered a key process during the invasion of the blood cell by the Malaria parasite, and more importantly, found a way to block this invasion.
With this new knowledge, NTU is looking to collaborate with the industry on... Read More
A new study shows that two unusual treatment approaches may have beneficial effects on the symptoms of autism in children and adults with the disorder. Using a hot bath to raise body temperature and thereby mimic the effects of infection, or using worm eggs to stimulate the production of immunor... Read More
This episode: Non-pathogenic Clostridium difficile strains can protect hamsters against their disease-causing bacterial siblings!
(7 MB, 7.5 minutes)
When hamsters were colonized with toxin-free strains of C. difficile, they were better able to resist infection b... Read More
We continue our semi-annual ritual and post this quick tour of our featured blog posts published since June 2013.
Microbial ‘Starstuff’. Associate blogger Gemma Reguera tells us how the remnants of a dying star become transmuted into microbial stuff, including cellular structures... Read More
What have we learned?
The various comments confirm that the term microbiome means different things to different people.
Lita points out that in the early days when HMP was formed, the NIH officially defined the human microbiome as “all of the microorganisms and their genes and genomes whic... Read More
Bravo Randy Schekman!
I strongly support your comments on the tyranny of "impact factors" and I will be pleased to join in efforts to prevent the misuse of these ratings.
Impact Factors have become a symbol of terror for scientists in all disciplines and their use in promotion and other ... Read More
People dressed for a holiday party don’t picture themselves sick in bed shortly after the festivities, but that’s what could happen if food on party buffets isn’t handled and served safely. Bacteria are party crashers, and the only housewarming gift they bring is foodborne illness.
How do bac... Read More
A protein in Salmonella inactivates mast cells -- critical players in the body's fight against bacteria and other pathogens -- rendering them unable to protect against bacterial spread in the body, according to researchers at Duke Medicine and Duke-National University of Singapore (Duke-NUS).
... Read More
New research from the University of California, Davis suggests that blood clots may play an unexpected role in protecting the body from the effects of deadly bacteria.
Bacterial toxins, such as lipopolysaccharide (also known as endotoxin), can cause a variety of negative health effects includ... Read More
E. coli is one of millions of bacterial species that live in our gut. From when we are infants, E. coli dwells peacefully in the lower intestine, maintaining a give-and-take relationship with our body – it helps the gut digest food, and gets energy to live and reproduce in return.
However, th... Read More
More people risk being sporadically infected with bird flu in China’s southern province of Guangdong, the Chinese government said after finding the virus in live poultry markets.
The Guangdong province health authority examined 70 samples from 13 live poultry markets in Shenzhen city, it said... Read More
The World Health Organization (WHO) today confirmed four recent novel H7N9 avian flu cases, as scientists revealed their latest risk assessments based on genetic monitoring and lab tests.
In a statement, the WHO said it has received reports of two infections from China's Zhejiang province, wh... Read More
New research reveals the complex dynamic between gut bacteria and the immune system that keeps proteins from flagellin—bacterial tails—under control.
In healthy individuals, the only thing that separates the lining of the human gut from the some 100 trillion bacterial cells in the gastrointes... Read More
Potentially harmful staph bacteria can lurk deep inside the nose, a small new study finds.
Researchers tested 12 healthy people and found that formerly overlooked sites deep within the nose may be reservoirs for Staphylococcus aureus, which is a major cause of disease. Nearly half of S. aureu... Read More
The Lyme disease spirochete, Borrelia burgdorferi, is an obligate parasite that cycles between ticks and vertebrate hosts. B. burgdorferi alters the proteins expressed on its outer surface, depending on the state of each host. Here, we used immunofluorescent antibodies to identify spirochetes th... Read More
A common soil-dwelling microbe appears to have a sense of touch, researchers report.
A new study finds that Bacillus mycoides, a bacterium known to science since 1842, responds to forces and curvature in the medium on which it’s growing.
The microbe’s ability to respond to subtle changes i... Read More