A study published in the Journal of Clinical Investigation suggests that environmental factors, in conjunction with a mutation of the TLR4 gene, may contribute to the severity of RSV-related respiratory illness in children. TLR4 is a gene involved in the innate immune response, and investigator... Read More
AMHERST, Mass. - Bacteria have traditionally been viewed as solitary organisms that "hang out on their own," says molecular biologist Kevin Griffith of the University of Massachusetts Amherst. However, scientists now realize that in fact, bacteria exhibit social behavior within groups. Read More
Fungal contaminant seen on Starch agar after 1 month at refrigerated temperatures. Colonies were blackish green and circular. Elevated tufts could be seen in the middle of each colony with small water droplets in the rhizoid growth. Read More
Isolated colonies of salmonella enterica subsp. Typhi
Image was taken in 2005 for master thesis.
Location: Kathmandu Model Hospital. Read More
The picture was taken for my master thesis in 2005.
Location: Kathmandu Model Hospital, Nepal. Read More
"The conventional wisdom among public health authorities is that the Ebola virus, which killed at least 10,000 people in Liberia, Sierra Leone and Guinea, was a new phenomenon, not seen in West Africa before 2013. (The one exception was an anomalous case in Ivory Coast in 1994, when a Swiss prim... Read More
Human cytomegalovirus (HCMV) is an extremely common virus, which as other members of the herpes virus family causes life-long infections in humans. Most individuals are exposed to HCMV during childhood, yet symptoms can be easily fought off by a healthy immune system. However, infections can be ... Read More
LAUSANNE, SWITZERLAND—As scientists and medical experts race to develop a vaccine to stop the spread of Ebola, there are concerns the window of opportunity may be closing. Read More
In a recent post to ASM's blog Small Things Considered, Merry Youle writes a wonderful, sometimes thrilling description of the different forms of cellular compartments that have evolved over the last 4 billion years or so. From compartmentalized, lipid-bound membranes in eukaryotes to microcomp... Read More
This episode: Microbial predators in soil cause microbial prey to build fortifications!
(8.8 MB, 9.5 minutes)
Some of the world’s finest scientists live in a former whaling village on the North Shore of Long Island, in a compound reminiscent of an army post.
In this pastoral setting, they have very self-consciously taken themselves out of the real world into a cerebral one, where they are searching f... Read More
By engineering antibacterial enzymes, Dartmouth investigators led by Karl Griswold, PhD are using novel strategies to target the prevalent drug-resistant bacterium Staphylococcus aureus. Recent papers in FEMS Microbiology Letters and Applied Microbiology and Biotechnology describe their findings... Read More
Kluyvera is a relatively newly described genus in the family Enterobacteriaceae that infrequently causes infections in humans. The organism has been isolated from various clinical specimens but its has been regarded alternatively as saprophytic, opportunistic, or pathogenic. In our case Kluyvera... Read More
News that a stomach bug is becoming resistant to antibiotics is alarming, but before you start fearing the so-called new bug, there are a few things you should know.
The Centers for Disease Control and Prevention reported this week that the bacteria Shigella sonnei has become resistant to cip... Read More
When deciding whether a sick patient belongs in an Ebola treatment unit (ETU), doctors want to be right because any misdiagnosis is terribly dangerous.
Returning an Ebola case to the community leaves a patient untreated and prolongs the epidemic, but admitting someone with a different illness... Read More
By modifying the CRISPR-Cas genome editing system, Whitehead Institute researchers are now able to manipulate Candida albicans’ genome systematically—an approach that could help identify novel targets for therapies against this serious pathogen for which there are a limited number of anti-fungal... Read More
Bacteria have been discovered in the bladders of healthy women, discrediting the common belief that normal urine is sterile. This finding and its implications were addressed in an editorial published by researchers from Loyola University Chicago Stritch School of Medicine (SSOM) in the latest is... Read More