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Mycobacterium smegmatis colonies on lowenstein-jensen media (2x)

Mycobacterium smegmatis colonies on lowenstein-jensen media (2x) Read More

One bad mamma-jamma

The 1918 Spanish flu epidemic was caused by an influenza A (H1N1) virus.
Responsible for more deaths during World War I than all the bombs, bullets, poison gases, & artillery shells used, it killed more than 500,000 people in the United States, and up to 50 million worldwide.
The possible so... Read More

Byssochlamys sp.

Byssochlamys sp. Penicillate sporulation (1008X) Read More

Exophiala jeanselmei

Exophiala jeanselmei. Note long slender conidiophores with terminal sporulation. Secondary budding of conidia is rare. LCB mount. Read More

Missing Carl Woese---RIP!

I comment a bit, as an educator, about the loss of Carl Woese. Not only the importance of his discoveries, but how he went about his work, remains of great value. Read More

Rubella virus virions

This negatively-stained transmission electron micrograph (TEM) revealed the presence of Rubella virus virions, as they were in the process of budding from the host cell surface to be freed into the host’s system, thereby, producing an enveloped virus particle, which means that after budding, the... Read More

Neisseria meningitidis

Neisseria meningitidis. Differential sugar reactions. (1-8) Read More

Trichophyton mentagrophytes

Trichophyton mentagrophytes colony on Sabouraud's agar (1.54) Read More

Paramecium caudatum

Nikon Small World Honorable Mention 2010 photomicrography competition, Gerd A. Guenther, Düsseldorf, NRW, Germany

Subject Matter: Paramecium caudatum fed with Congo red-stained yeast, living specimen (600x)
Technique: Differential interference contrast Read More

Art and Microbiology

A collection of funny images about microbiology. Although the text is in Spanish language, it can be easily understood. Read More

S. aureus bacteria escaping destruction by human white blood cells.

Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are caused primarily by a single strain—USA300—of an evolving bacterium that has spread with “extraordinary transmissibility” throughout the United States during the past five years, according to a new study le... Read More

Blastomyces dermatitidis

Blastomyces dermatitidis. Yeast phase. Interference phase microscopy Read More

Rothia dentocariosa

Rothia dentocariosa. Granular microcolonies, 18 hour aerobic growth on trypticase soy agar (250X) Read More

Non-acid-fast rods

Non-acid-fast rods (Corynebacterium species). (approx. X 1000). Taken from the Wistreich Collection, appearing exclusively on Microbeworld. Read More

Paracoccidioides brasiliensis

Paracoccidioides brasiliensis. Tissue form grown in vitro at 37C Read More

Leukemia treatment - immune system T-cells (center) binding to beads which cause the cells to divide

This microscopy image provided by Dr. Carl June, shows immune system T-cells, center, binding to beads which cause the cells to divide. The beads, depicted in yellow, are later removed, leaving pure T-cells which are then ready for infusion to the cancer patients. Scientists are reporting the fi... Read More

Legionella pneumophilia in yolk sac of embryonated egg as stained by the Gimenez method

Legionella pneumophilia in yolk sac of embryonated egg as stained by the Gimenez method Read More

Cryptococcus neoformans

Cryptococcus neoformans in tissue (1000X) Read More

Tapeworm Echinococcus granulosus Hydatid Cyst

Echinococcus granulosus is a tapeworm parasite that in its larval form can cause hydatid disease, which is characterized by cysts forming within the victim's body. In order to complete its lifecycle, the tapeworm must infect two hosts, a carnivore and a herbivore.

The adult form of Echinococc... Read More

Microbiology Wreath

Dr. Donna Stolz of the University of Pittsburgh assembled a wreath collage of mammalian cells stained for various proteins and organelles magnified from 220x to 2000x.

Nikon’s Small World Photomicrography Competition Read More

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