A device used during open-heart surgery that infected at least 12 patients at a Pennsylvania hospital last year was probably tainted at the plant in Germany where it was made, a federal investigation has found.
The device, called a heater-cooler machine, uses water to regulate the temperature... Read More
The N.C. Museum of Natural Sciences in downtown Raleigh opens a new special exhibit this weekend that explores the secret world inside all of us.
"The Secret World Inside You" uses larger-than-life models, computer interactives, videos and art installations to explore the evolving science tha... Read More
A specific strain of the fungus, Fusarium oxysporum, circulates in the water distribution systems of five French hospitals, in two widely separated cities. This microbe is potentially a life-threatening risk to immunocompromised patients. The research is published September 23, 2016 in Applied a... Read More
The oxidase test is performed using a reducing agent to detect bacteria’s ability to produce cytochrome c oxidase, an enzyme in the electron transport chain. The reducing agent (N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD)) changes or produces a purple color as it become oxidized. Pseudom... Read More
In a very interesting development, a latest study has debunked the belief that it was safe to eat food fallen on the floor if picked up within “five seconds”.
Professor Donald W Schaffner, a food microbiologist at Rutgers University in New Jersey, said a two-year study he led concluded that no ... Read More
Small regulatory RNA molecules are vital for salmonella and other bacteria potentially harmful to humans: This RNA type controls gene activity and allows bacteria to quickly adjust to changing conditions of living and stress as are typical during an infection, for example, when entering the bloo... Read More
Florida announced a new Zika transmission zone on Thursday, saying that the virus had popped up in a mile-square patch of northern Miami and that five people had been infected.
The area, around the Little Haiti neighborhood, goes from NW 79th Street in the north to NW 63rd Street in the south... Read More
Organisms that have the catalase enzyme can detoxify the cell of hydrogen peroxide by converting it to oxygen gas. Bubbles indicate oxygen gas production after the addition of hydrogen peroxide directly to colonies growing on the TSA plate.
The oral cavity is wet, warm and nutrient rich. These characteristics allow microorganisms to flourish -- however they are normally kept in check by the host. Oral diseases like periodontitis are mediated by bacteria. Curiously, it is not a single bacterium that is the cause of disease, but a... Read More
Casein Plates contain the major milk protein found in milk. Pseudomonas aeruginosa grown on Casien agar for 72 hours at 37 degree's C to look for the presence of the exoenzyme proteases/caseases . Pseudomonas aeruginosa, casein hydrolysis, as noted by a zone of clearing around the organism, as... Read More
It is (almost boringly) obvious that cell-to-cell communication is vital in multicellular organisms. To function properly, all cells in a tissue have to know – and let their neighbors know – where exactly they are, which tasks they're performing right now, when it's time to differenti... Read More
Highlights of the Recent Advances in Microbial Control meeting in San Diego, and expansion of a gut pathogen by virulence factors that stimulate aerobic respiration.
It is not unexpected that the contemplation of bacteria and archaea should focus so much on the nature and importance of their cell envelopes. Here, after all, is the interface between the cell's interior and the outside world. It is also what a host perceives early on when becoming infected.... Read More
Guest host Lynda Coughlan reviews how oncolytic viruses, which specifically kill tumor cells, are designed and how they work. Read More
Advancing Partners & Communities is excited to launch part one of a two-part compelling, original video series showcasing the work in Sierra Leone to improve primary health care services at health posts and community levels. This first video focuses on the efforts needed to rebuild these service... Read More
Barry Bochner with Biolog, Inc., presents an ASM Virtual Lecture on phenomics, a relatively new technology that can be applied with diverse microbial cells to expand our understanding of the effect of genetic or environmental changes on cells.
ASM’s virtual lectures are conducted by fellows ... Read More
The 2016 MacArthur awards have just been announced. Among the handful of scientists are two microbiologists, Dianne Newman and Victoria Orphan, both at Cal Tech and both geomicrobiologists. We rejoice. Both are extraordinary scientists with an unusually broad range of interests.
Click "source... Read More
The bonded carbons are shown using E. coli, E. faecalis, and C. violaceum. Using BBL's CHROMagar, we were able to show the pi bonds in pink (E. coli) and blue (E. faecalis). Read More
E. Coli grown on MacConkey Agar at 37 degrees for 24 hours in the shape of a jack-o-lantern face.
-Important Ingredients: crystal violet, bile salts, neutral red (color indicator), lactose
-Differential: used to identify and isolate lactose fermenting G- enteric bacteria mainly Enterobacteriac... Read More