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Immunoelectrophoresis

Immunoelectrophoresis. Wells 1 and 2 rabbit serum, Wells 3 rabbit gammaglobulin, trough 1 and 3 antirabbit serum, trough 2 anti-gamma-globulin Read More

Salmonella sp.

Salmonella sp. on XLT4 agar and Miller Mallinson Agar Read More

Have a Happy Bioluminescent Fourth of July!

In this post from my Microbiology/Education blog, I wish everyone a lovely day of food, fellowship, and fireworks. My laboratory brings you our own "fireworks" through bioluminescence! Read More

Erysipelothrix rhusiopathiae

Erysipelothrix rhusiopathiae. Gram stain of 36 hour thioglycolate broth culture (1000X) Read More

World's Largest, Unique Virus Photographed for First Time

These images are amazing and beautiful.

From Wired - "A virus so large and strange that it’s redefined the very concept of a virus has been photographed for the first time. It’s even weirder than expected." Read More

Microsporum canis macroconidium

Microsporum canis macroconidium. Unstained interference phase (1000X) 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

Beauty of Nocardia asteroides Colonies on Blood Agar

Nocardia asteroides isolation from blood specimen. On culture, chalky white colonies were seen on blood agar. Image courtesy MicrobeWorld user Kyriakos Zaragkoulias, Specialty Registrar (StR) in Medical Microbiology at General Hospital of Thessaloniki “G. Papanikolaou”, Greece.


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Cryptococcus neoformans

Cryptococcus neoformans in sputum. India ink (400X) Read More

Mannitol Salt Agar (MSA)

Mannitol Salt Agar (MSA)
•Important Ingredients: Phenol red, mannitol (sugar), 7.5% NaCl
•Differential: between pathogenic S. aureus and S. epidermidis
•Selective: NaCl inhibits non-halophilic organisms. Organism that can grow are halophilic.
•Mannitol Fermentors: fermentation of acid cau... Read More

Swine Flu Portraits from Mexico City

Freelance photographer Nicola “Okin” Frioli has taken a collection of photographs/portraits of people wearing surgical masks in Mexico City. It's an interesting art project that looks at the impact swine flu has on the city's residents. Read More

Bacteria, protozoa, and algae from a wild stream

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view... Read More

Pulmonary cryptococcus neoformans

Pulmonary coyptococcus neoformans in man, H & E stain Read More

Pseudomonas paints a picture!

A student and I painted with bacteria and this is what happened! We used a method similar to that used by artist Sarah Roberts (UK) and microbiologist Simon Park.

Motility agar plates were prepared and painted with watercolor paint before inoculation with P. aeruginosa. After 7 days at room t... Read More

Mycobaterium tuberculosis

A colorized scanning electron micrograph of Mycobaterium tuberculosis, the bacteria that cause TB.

Tuberculosis (TB)
Tuberculosis, commonly known as TB, is a contagious and an often severe airborne disease caused by a bacterial infection. TB typically affects the lungs, but it also may aff... Read More

Two parallel rabbit testicular processes

Two parallel rabbit testicular processes with attached Treponema pallidum. Note the ability of single treponemes to associate by the terminal ends to host cell surfaces and to bridge the two adjacent testicular cells Read More

Bacilli showing streptobacillus arrangement

Microscopic view of large numbers of bacilli showing streptobacillus arrangement. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Mineral Crusts pictures

Photos of the mineral crust created by microbes. Read More

Achnanthes longipes

Achnanthes longipes (a diatom, Bacillariophyta) (1000x)

Nikon Small World 2012 PHOTOMICROGRAPHY COMPETITION, IMAGE OF DISTINCTION, Dr. Victor Chepurnov, De Water Architect, Ghent, Belgium Read More

Coccidioides immitis

Coccidioides immitis. Hyphae, arthrosporte and young spherule in lung. PSA stain (400X) Read More
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