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How our immune system targets TB

Every 18 seconds someone dies from tuberculosis - it is the world’s most deadly infectious disease.

Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), has infected more than one-third of the human population with an annual death toll of approximately 1.5 million people.

... Read More

Ban on triclosan shows need for new chemicals to demonstrate efficacy and safety

A new commentary from Patrick McNamara and Stuart Levy cautions that the Food and Drug Administration’s ban on triclosan and 18 other biocidal chemicals that promote antibiotic resistance is only a starting point. Triclosan’s long-term impact, as well as the risks substitute chemicals may pose, ... Read More

Close up BEA Contaminant

Close up of a single colony or an unknown contaminant (yeast?) on BEA agar after 1 month in the refrigerator. Looks like there was moisture on the plate as the colonies grew in a drip like pattern. Colonies were mucoid salmon red in color with yellow pin point circular growths growing in through... Read More

Carbapenem-resistant bacteria isolated from a pig farm in the United States

While carbapenems aren’t allowed to be given to feedlot animals, other beta-lactam antibiotics are. This is a large class of drugs that includes extended-spectrum cephalosporin drugs. There is no direct line between the use of these extended-spectrum cephalosporins and selection for carbapenem r... Read More

Unknown contaminant on BEA

Unknown contaminant (yeast?) on BEA agar after 1 month in the refrigerator. Looks like there was moisture on the plate as the colonies grew in a drip like pattern. Colonies were mucoid salmon red in color with yellow pin point circular growths growing in through out. The edges of the colonies... Read More

Green Fungal Contaminant on BEA

Colonies of a green fungal contaminant, presumable airborne, on BEA agar after 1 month in the refrigerator. Green spore formation can be seen throughout the circular colonies. Read More

"The Good and Bad of Lab Automation"

I am talking here specifically about automation of the bacterial culture process, using Kiestra TLA (installed in my own lab early 2016), Copan WASP, etc. A useful bullet point summary for those who are considering a business case for their own laboratory. Read More

Fungal contaminant on BEA

Fungal like contaminant, presumably air borne, on BEA media after 1 month in the refrigerator. Mucoid mounding beige center with a hairlike circular border. Read More

Media Contaminant

Contaminant (yeast?) found on TSA after several months in the refrigerator. The larger colony was circular, mat with concentric rings with a smaller more mucoid yellow growth just off center. Read More

"Too much knowledge..."

Are we, as microbiologists, getting too clever? Is our increasing theoretical knowledge actually hindering us in our goal of effective and realistic antimicrobial stewardship? Read this article to find out more! Read More

"The end of anti-microbial susceptibility breakpoints as we know them?"

Susceptibility break points are a dirty compromise between clinical, pharmacokinetic. and epidemiological break points. Because they are a necessary compromise, there will always be disagreement, and they can never be perfect. Is there a better way? Read More

Microbiology, Creativity, and Extra Credit

In this blog post, I share the creative projects that my Biology 350 (Microbiology) micronauts created this semester. They range from video parodies, to prose poems, to short-short stories to sculptures and needlepoint. Enjoy! Read More
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