Photomicrographs of smears of fowl blood showing Borrelia anserina Read More
Entomophthora coronata in tissue. Splendore-Hoeppli effect. H & E stain (450X) 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.
: 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
Electron micrograph of a longitudinal section through budding yeast cells 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
Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More
Gram-positive cocci showing various morphological arrangements including diplococcus and tetrads. (approx. X970). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. 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
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
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
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.
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
As a closer view of PHIL 12265, this photograph depicts the colonial morphology displayed by Gram-negative Yersinia pestis bacteria, which was grown on a medium of sheep's blood agar (SBA), for a 72 hour time period, at room temperature. Y. pestis is the bacterium responsible for causing the inf... Read More