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Metallo-β-lactamase producing Pseudomonas aeruginosa


The production of Metallo-β-lactamase is one of the resistance mechanisms of Pseudomonas aeruginosa. Metallo-β- lactamases are members of Group B in the molecular classification of Ambler and are Clavulanic acid resistant enzymes which require divalent cations of zinc as co-factors for enzymat... Read More

Alcaligenes faecalis

Streak plate of Alcaligenes faecalis grown on TSA for 48 hr. Read More

Kirby-Bauer disk diffusion

Kirby-Bauer disk diffusion susceptibility test on coagulase-negative Staphylococcus aureus and E.coli grown on Mueller-Hinton agar with tetracycline (30 µg), cephalothin (30 µg), erythromycin (15 µg), chloramphenicol (30 µg), vancomycin (30 µg), penicillin (10 µg), streptomycin (10 µg), and novo... Read More

Mycobacterium smegmatis

Mycobacterium smegmatis grown on TSA for 96 hrs.
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How long have primates been infected with viruses related to HIV?

Disease-causing viruses engage their hosts in ongoing arms races: positive selection for antiviral genes increases host fitness and survival, and viruses in turn select for mutations that counteract the antiviral host factors. Studying such adaptive mutations can provide insights into the distan... Read More

Biologist investigates how gene-swapping bacteria evade antibiotics

A scientific peek into bacteria boudoirs is revealing how "sex" among disease-causing microbes can lead different species or strains to become resistant to antibiotic medications. Read More

Chestnut leaves yield extract that disarms deadly staph bacteria

Leaves of the European chestnut tree contain ingredients with the power to disarm dangerous staph bacteria without boosting its drug resistance, scientists have found. Read More

Unknown environmental Contaminant on blood agar plate streaked with S. pyogenes

A streak plate of Strep pyogenes on blood agar, stock culture used for class, was kept at room temp for 1 month. Before disposal a contaminant, presumably environmental, was seen on the plate. The pigment was opaque tan/yellow and with a mucoid surface. Lobate marigins with raised irregular-rh... Read More

NIH-funded study establishes genomic data set on Lassa virus

An international team of researchers has developed the largest genomic data set in the world on Lassa virus (LASV). The new genomic catalog contains nearly 200 viral genomes collected from patient samples in Sierra Leone and Nigeria, as well as field samples from the major animal reservoir, or h... Read More

Streptococcus pyogenes Gram Stain

Gram stain done on S. pyogenes showing the characteristic long G+ streptococcus chains. Culture grown on blood agar for 48 hrs at 37 degree’s C. Read More

Staphylococcus aureus

Scanning electromicrograph of Staphylococcus aureus bacteria. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More

Ebola

Ebola Virus
Colorized scanning electron micrograph of filamentous Ebola virus particles (blue) budding from a chronically infected VERO E6 cell (yellow-green).

Photo taken from NIAID flicker Read More

Study: Breastfeeding could reduce common infections among Indigenous infants

TORONTO, Aug. 17, 2015--Promoting breastfeeding could lead to a substantial reduction in common infections and even deaths that are more common in Indigenous infants than non-Indigenous infants, a new study suggests. Read More

Test Submission-Blood Donation in Nepal

I am just submitting this as a test submission so that I know how the whole process functions.

Image taken at Pashupathinah Temple in Kathmandu Nepal using a Nikon PS510 Read More

Bacillus/Diplobacillus

Simple stain done on an unknown bacteria, showing feathery rhizoid growth on TSA after a 48 hr incubation at 37 degree’s C, isolated from a floor swab. Single bacillus and diplobacillus can be seen though out. Read More

Micrococcus luteus line inoculation

Line inoculation of Micrococcus luteus on a TSA slant showing Filiform, uniform growth, along the margin. Culture was grown for 3 days at 37 degrees, M. luteus usually takes 3+ days for good growth. Read More

Bacitracin test on Streptococcus pyogenes

Bacitracin test done on a lawn of Streptococcus pyogenes grown on blood agar. The zone of inhibition around the bacitracin disc, approx 14mm measuring the entire length of the zone, indicates sensitivity. The zone of inhibition is red because the red blood cells did not lyse. Grown for 24 hr... Read More

Neoscytalidium dimidiatum arthrospore

It is a well recognized uncommon cause of skin and nail infection of the hands and feet . Unlike Dermatophytosis these mould infections are not contagious. There are few reports of invasive infection caused by N. dimidiatum; most infections occurred in immunocompromised hosts. Arthrospores are ... Read More

ASM GM 2014 - Where Pathogens Can Linger on Airplanes

Many air travelers are concerned about the risks of catching a disease from other passengers given the long time spent in crowded air cabins. New research shows disease-causing bacteria can linger on surfaces commonly found in airplane cabins for days, even up to a week. Participants discuss ... Read More

Starch Agar

Starch agar contains high molecular weight starch molecules (soluable starch). When Iodine is added it reacts with starch to produces a dark brown/purple color. A zone of clearing forms around organisms that produce the exoenzyme amylase after addition of iodine. This plate was incubated for ... Read More
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