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Dung fungi found on a cow pile

Specimen: Dung fungi found on a cow pile
Technique: Epi-illumination, 20 stacked images

Credit: Mr. Mike Crutchley, Pembrokeshire, Wales, United Kingdom - Olympus BioScapes Read More

Pink-pigmented Pseudomonas Aeruginosa

A pink-pigmented strain of Pseudomonas aeruginosa is shown in the picture. This was photographed in University of Colorado Hospital's clinical lab by the microbiology department. The organism is shown on Mueller-Hinton agar for Kirby-Bauer sensitivity testing.

The pigment pyorubin is responsi... Read More

Zoonotic villains #2- Ebola virus

Since it's 1st recorded outbreak (1976) in the Democratic Republic of the Congo's Ebola River Valley, the Ebola virus has been known - and feared - for good reason.
Why, you may ask?
Ebola hemorrhagic fever is potentially lethal and encompasses a range of symptoms including fever, vom... Read More

Dangerous enterohemorrhagic bacteria E. coli

Most Escherichia coli (E.coli) strains are harmless.But some, like enterohemorrhagic E. coli (EHEC), are a hazard to human health and life. Read More

Avian Influenza A H5N1

Colorized transmission electron micrograph of Avian influenza A H5N1 viruses (seen in gold) grown in MDCK cells (seen in green).
Avian influenza A viruses do not usually infect humans; however, several instances of human infections and outbreaks have been reported since 1997. When such infecti... Read More

Mold mycelium

A contaminant (mold mycelium) on a Serratia streak plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Mycobacterium tuberculosis culture

This is a close-up of a Mycobacterium tuberculosis culture revealing this organism’s colonial morphology.

Note the colorless rough surface, which are typical morphologic characteristics seen in Mycobacterium tuberculosis colonial growth. Macroscopic examination of colonial growth patterns is ... Read More

Paracoccidioides brasiliensis tissue

Paracoccidioides brasiliensis tissue or parasitic form grown in vitro at 37 C Read More

Colonies of Alcaligenes

Circular, smooth, entire, opaque colonies of Alcaligenes on a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Zombie Creatures: What Happens When Animals Are Possessed by a Parasitic Puppet Master?

From fungi to flies, some parasitic species have figured out how to control their host's behavior to get what they need. See what happens when bugs go really bad with this slide show from Scientific American. Read More

Microsporum gypseum microconidia

Microsporum gypseum microconidia. Unstained interference phase microscope. (1000X) Read More

Scary Movie?

Genus Serratia presents special problems of identification because of biochemical and morphological similarity to other genera of the Enterobacteriaceae, notably Klebsiella and Enterobacter. Serratia liquefaciens is an opportunistic pathogen which is capable of colonizing a wide variety of surfa... Read More

possible strongyloides

Taking pics of my dog. Recently diagnosed with Strongyloides but no better after treatment.any suggestions? Read More

Red algae Scagelia

Red algae Scagelia, showing reproductive tetraspores and golden diatoms. 2nd place winner of Olympus BioScapes photomicrography contest 2012.

Credit: Dr. Arlene Wechezak, Anacortes, Washington Read More

Mycoplasma arthritidis. Light micrograph. Crystal violet methylene blue strain. Note colonial morphology and classic 'fired-egg' appearance of isolated colony after approximately 10 days worth of growth on agar

mycoplasma arthritidis. Light micrograph. Crystal violet methylene blue strain. Note colonial morphology and classic 'fired-egg' appearance of isolated colony after approximately 10 days worth of growth on agar Read More

Activated Sludge

Activated sludge. Note the bacterial rods and filament within the floc. (5000X) Read More

Gram negative diplococci in blood smear of patient taken 2 hours after dental cleaning

Gram negative diplococci in blood smear of patient taken 2 hours after dental cleaning Read More

Varicella

Varicella. Vesicle smear from case of chicken pox. Direct fluorescent antibody (FA) staining readily differentiates chicken pox or zoster lesions from those due to Herpes simplex viru Read More

Photo from Haiti: how to diagnose malaria and typhoid

These checklists, scrawled in handwriting on paper pasted to the hospital wall, are used by volunteer doctors and nurses to diagnose and treat patients who come in with symptoms of malaria and typhoid. Both are diseases that we rarely see in the US, but are strikingly common in Haiti. This also ... Read More

The Grand Challenge of Biology

I was at a tech meeting hosted by Amazon Web Services to see how I may use some of their cloud computing services for this site. One segment of the presentation was devoted to customers who use AWS for their sites or work. The slide you see in this image comes from Michael Schatz, Researcher at ... Read More
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