Photomicrographs of smears of fowl blood showing Borrelia anserina Read More
Exophiala jeanselmei. 37 Days at 30C on cornmeal agar. Dark brown slow-growing colony Read More
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.
Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More
. . . to do YOUR part to help stamp out what are now called STI's. Funny how as our knowledge of STI's and our ability to treat them has bloomed, our societal level of comfort with such PSAs seems to have withered. I used to see cleverly designed (and carefully/antiseptically couched) PSAs ab... Read More
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
This photomicrograph is showing Neisseria gonorrhoeae in a cervical smear using the Gram-stain technique. Thanks to the CDC's PHIL for the image. Read More
Electron micrograph of a longitudinal section through budding yeast cells Read More
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
Entomophthora coronata in tissue. Splendore-Hoeppli effect. H & E stain (450X) Read More
Electron shadowed micrograph of Pseudomonas fluorescens showing flagella Read More
Nonseptate hyphae of Mucor pusillus which have occluded a vessel. H & E stain Read More
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
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
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.
Micrasterias is a Desmid - a group of green algae mostly found in neutral to acidic fresh waters and sphagnum bogs. Most are unicellular, though a few form chain-like colonies. Each cell is constructed of 2 semicells which are mirror images of each other. In Micrasterias the cells are flattened ... Read More