I am sunil pandey from kathmandu Nepal, studying B.Sc in medical microbiology at nobel college. this is AST disc in MHA from blood sample, shows the clear zone of inhibition(Kirby -Bauer disc diffusion Method). I have done this experiment as part of my study "susceptibility of antibiotics in ba... Read More
DNase agar can be used to differentiate between potentially pathogenic S. aureus and other Staphlococcus by looking for the presense of the exoenzyeme DNase. After growth for 24-48 hrs 1N HCL is added to the agar plate. Addition of HCL precipitates DNA in the media causing cloudiness unless t... Read More
Transmission electron micrograph of Middle East respiratory syndrome coronavirus (MERS-CoV). Credit: National Institutes of Health/Department of Health and Human Services (NIAID).
From the CDC:
Middle East Respiratory Syndrome (MERS) is viral respiratory illness first reported in Saudi Ara... Read More
Unknown fungal isolated contaminant found on MAC. MAC plate was incubated for 2 months at 4 degrees C once fungal growth was seen. This colony seemed to emerge from the agar and had a 3D appearance. The center of the colony had what seemed to be hyphal growth while the edges had a hard waxy un... Read More
Helicobacter is a Gram-negative rod with a helical shape on gram stain. The most known strain is H. pylori, which causes ulcers and chronic gastritis and is said to affect up to 50% of the human population. This particular strain, Helicobacter fennelliae is most commonly found in the feces an... Read More
Petri dish Party... between green and brown Pseudomonas aeruginosa, Micrococcus sp., Staphylococcus aureus and Serratia marcescens Read More
Sputum specimen from sick of fibrosis cystic can hold many microbes and yeast. This specimen sent to our laboratory Mycobacteriology of Polyclinic University of Messina for mycobacteria research, shows yeast cells with Ziehl-Neelsen stain. Read More
A group of fungi growing on the surface of stagnant black tea left open to the environment. I've found this leads to beautiful morphologies when I try it. Read More
Mapping deletion mutations by genetic tools is one thing, seeing them displayed along the length of a DNA molecule is quite another. But how can one see what isn’t there? In 1968, Ronald Davis and Norman Davidson did just that—visualizing deletion mutations in the genome of coliphage l. They rea... Read More
This study done at department of Clinical Microbiology, TU Teaching Hospital , Kathamandu, Nepal.
Clinical specimen: Sputum
Media: Muller Hinton Agar
Incubation condition: at 37'c for 24hrs.
Isolate: Pseudomonas aerugionsa
Pic: Symbol of ASM.
Pseudomonas aeruginosa is a Gram-negative rod... Read More
A chemist at Washington University in St. Louis is studying siderophores, iron chelating molecules released by bacteria during an infection, with the thought of using them to design personalized antibiotic therapy that would avoid the rapid evolution of resistance that plagues antibiotic drug di... Read More
Hilary Koprowski flanked by Vincent Racaniello and Richard Kessin on the occasion of Dr. Koprowski's 'History of Science' lecture at Columbia University College of Physicians & Surgeons, April 2005. Read More
In this blog post, I discuss our Summer Research Program's "Lab Themed Dessert" competion, for which one of my students created a cake "sculpture" of Bdellovibrio attacking and invading E. coli. It was tasty, informative, and fun! My student clearly thought about Bdellovibrio a LOT during the ... Read More
In the photo series "Impermanence," South Korean artist Seung-Hwan Oh creates colorful, otherworldly portraits with a little help from some "friends" — emulsion-consuming microbes, that is.
By immersing an exposed roll of medium-format positive film in water containing these bacteria and lea... 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
Activated eosinophils in the peripheral blood of a patient with idiopathic hypereosinophilic syndrome showing cytoplasmic clearing, nuclear dysplasia, and the presence of immature forms (100x magnification). Credit: NIAID Taken on June 24, 2013 @http://www.flickr.com/photos/niaid/9125007255/
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Beautiful scanning electron microscopy images.
"For 2 decades we have been devoting our work to the visualization of the previously unknown and invisible. Detailed, aesthetic, and scientifically correct we present an access into the microscopic world of biology, medicine, chemistry, technolog... Read More
A positive D test indicates that the presence of macrolide-inducible resistance to clindamycin produced by an inducible methylase enzyme that alters the common ribosomal binding site for macrolides, clindamycin and the group B streptogrammins (quinupristin). This cross-resistance, called the ML... Read More