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Photomicrographs of smears of fowl blood showing Borrelia anserina

Photomicrographs of smears of fowl blood showing Borrelia anserina Read More

Entomophthora coronata in tissue

Entomophthora coronata in tissue. Splendore-Hoeppli effect. H & E stain (450X) Read More

Corynebacterium diphtheriae on tellurite

Corynebacterium diphtheriae on tellurite Read More

Zoonotic villains #1 - Marburg virus

Saints preserve us from this one. A highly contagious hemorrhagic fever, Marburg is less well known that it's cousin Ebola, (they're both members of the deeply troublesome Filovirus family) but no less deadly.
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Hepatitis virions, of an unknown strain of the organism

: This transmission electron micrograph (TEM) revealed numerous hepatitis virions, of an unknown strain of the organism. In the United States, viral hepatitis is an important public health problem because it causes serious illness, it affects millions, and it has a close connection with HIV. The... Read More

Yeast Cells - Electron Micrograph

Electron micrograph of a longitudinal section through budding yeast cells Read More

Anopheles sp. mosquito

This illustration depicts an Anopheles sp. mosquito transmitting sporozoites while obtaining a blood meal.

During a blood meal, a malaria-infected female Anopheles sp. mosquito inoculates its human host with sporozoites, which then infect human liver cells, where they mature into schizonts, w... Read More

Illustration of Toxoplasma gondii

Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More

Gram-positive cocci

Gram-positive cocci showing various morphological arrangements including diplococcus and tetrads. (approx. X970). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Pseudomonas fluorescens showing flagella

Electron shadowed micrograph of Pseudomonas fluorescens showing flagella Read More

Nonseptate hyphae of Mucor pusillus

Nonseptate hyphae of Mucor pusillus which have occluded a vessel. H & E stain Read More

Sarcocystis spp. zoites

Sarcocystis spp. zoites Read More

Salmonella enteritidis

Salmonella is a gram-negative, rod-shaped bacilli that can cause diarrheal illness in humans. They are microscopic living creatures that pass from the feces of people or animals to other people or other animals.

The Salmonella family includes over 2,300 serotypes of bacteria which are one-cel... Read More

Aspergillus sp. organisms

Magnified 562X this photomicrograph, stained using an “Aspergillus” conjugate fluorescent antibody (FA) staining technique, revealed the presence of Aspergillus sp. organisms, in a case of aspergillosis.
What is Aspergillus?

Aspergillus is a fungus (or mold) that is very common in the enviro... Read More

Cryptococcus neoformans

Cryptococcus neoformans abscess. H & E stain (1000X) Read More

Drawing of broken red blood cells, as seen in the blood of people with hemolytic uremic syndrome.

In hemolytic uremic syndrome, toxins destroy red blood cells. These misshapen cells may clog the tiny blood vessels in the kidneys.

Credit: National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health.
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Euglena species

Microscopic view of Euglena species (approx X 100) Read More

Slime mold Arcyria denudata

Arcyria called Cotton Candy Slime. A Myxomycetes 1 mm tall. Read More

Predictably beautiful

As the bacteria grow within a biofilm, they organize themselves into reproducible patterns and shapes that can be predicted with mathematical models.
Image: Confocal microscopy of a bacterial biofilm composed of Escherichia coli expressing the fluorescent proteins mCherry and sfGFP. The image w... Read More

Blood Falls - Subglacial outflow from the Taylor Glacier in McMurdo

Subglacial outflow from the Taylor Glacier in the McMurdo Dry Valleys, Antarctica. Iron and salt precipitates form where subglacial brine flows from the Taylor Glacier, lending a bright red color to the glacier snout, which is commonly referred to as Blood Falls. The episodic release of subglaci... Read More

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