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Kirby-Bauer Testing: The Gold Standard for AST

Our sensitivity instruments rarely ever go down, but when they do our lab uses Kirby-Bauer testing to perform antimicrobial susceptibility testing in our laboratory. This testing involves placing antibiotic-infused discs on a standardized inoculum of bacteria spread in a lawn onto a Mueller Hint... Read More

Microscopic Photography of Aspergillus niger

This cutely radish photo of the colony of Aspergillus niger was taken by a digital camera. Before that Aspergillus niger was grown on SDA (Saboraud Dextrose Agar) media for the research purpose of testing antifungal activity of Scallop Powder(SP). SP ,a natural source obtained from Bivalves, can... Read More

Unknown from Handprint #1

Organism seen on handprint, presumably Bacillus sp. Organism grew out from the center with rhizoid growth, lobate edges, tan coloration, glossy throughout the colony, Read More

Agar Art 2016 Contest Submit by May 6

We hope you've started plating your dishes! Here are some of the 2016 entries thus far. Show us your creative streaking! For contest entry rules visit: www.microbeworl.org/art. Submissions close May 6, 2016 11:59 P.M.EST.Entries pictured from left to right: Symbol of ASM, A Once in a Lifetime Ki... Read More

Thanks ;)

Perfect for the last slide of a research presentation.
4 bacteria was used : Escherichia coli (Thank - White), Micrococcus luteus (for - yellow), Dickeya dadantii (your - white), Serratia marcescens (you, attention - red). Read More

Happy Holidays!

Large TSA plate: yellowish organism is Staph aureus, red organism is Serratia marcescens. Grown for 24 hrs at 37 degrees C. Read More

Sammy Salmonella

Sammy Salmonella was created on a Muller Hinton Agar using three different isolates of Pseudomonas aeruginosa and Staphylococcus aureus for the outline. Pseudomonas aeruginosa is the only species of Pseudomonas that will produce pyocyanin, which is what creates Sammy’s green color. These bacte... Read More

Hibernating bats mount a partial immune response against white nose fungus

White-nose syndrome (WNS), an invasive skin infection caused by the Pseudogymnoascus destructans (Pd) fungus has killed millions of bats since it was first seen in North America in 2007. A analysis of gene expression in hibernating bats infected with the destructive fungus published on October 1... Read More

MRSA on Spectra agar

Pictured here are blue colonies of Methicillin-resistant Staphylococcus aureus (MRSA) growing on Remel Spectra MRSA medium. Spectra media contains a chromogen that yields a blue color as a result of phosphatase activity. The phosphatase enzyme is present in many staphylococci, including Staphylo... Read More

Blood agar/Hemolysis

Three organisms inoculated onto blood agar, straight line inoculation, to demonstrate hemolysis. From top to bottom:
Streptococcus pyogenes: beta, complete lysis of red blood cells, clear area around colony growth.
Streptococcus bovis: alpha, incomplete lysis of red blood cells, green area ... Read More

Mycobacterium smegmatis

Mycobacterium smegmatis grown on TSA for 96 hrs.
Read More

Strategies to decrease bacterial colonization

Among the bacterial infections that are most difficult to treat, chronic infections associated with bacterial biofilms are one of the most hazardous. Bacterial biofilms are densely packed communities of microbial cells surrounded with secreted polymers. In her doctoral thesis, chemist Shoghik Ha... Read More

Which is the morphology of this micro-organism?

Please help me! I am planning to identify this microorganism by API but I can not identify the shape (rod or cocci). This microorganism has positive oxidase. Its colony is red, irregular, flat.
Please teach me. Thanks so much! Nhu Thuy from Vietnam
Read More

Antibiotic Producing Fungal Colony

This fungal colony, in association with a few others, was grown on SDA and appears to be an antibiotic producer. The compounds that it's producing appear orange and red. The colony grew and began producing compounds on the agar after five days incubation at 30 degree Celsius. This plate is part ... Read More

Symbol Of ASM

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

Ebola medical team develops guidelines for treating infected children

When the Ebola virus outbreak erupted in West Africa in 2014, children infected with the virus -- particularly those under age 5 -- faced overwhelming challenges. Not only was there a high death rate among young children infected with the disease, they often were isolated from their families, le... Read More

$7 million grant aids efforts to eliminate neglected tropical diseases

Researchers at Washington University School of Medicine in St. Louis have received a $7 million grant from the Bill & Melinda Gates Foundation aimed at eliminating river blindness and elephantiasis, two neglected tropical diseases that annually sicken millions. Read More

Malaria's key to the liver uncovered

Scientists uncover a port of liver entry for malaria parasites in a report published in The Journal of Experimental Medicine. If these results hold up in humans, drugs that target this entry protein might help prevent the spread of disease. Read More

Glistening E. coli

The image shows an agar plate with bright shinny bright green colonies growing in a precised direction. this tells us that Life is beautiful, colorful and full of precision. Each person ought to direct the path he/she wants to take in life and make it shine out to brighten the surroundings. Read More

Modified Ziehl Neelsen Stained Cyclospora cayetanensis

Hi, I am doing a research in Cryptosporidium parvum and Cyclospora cayetanensis infection among School children of kathmandu at Public health research laboratory, the Institute of Medicne, kathmandu.

This is a Modified ZN stained image of Cyclospora cayetanensis isolated form a 5 year School... Read More
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