H1N1 Mass Vaccination Clinic poster from a high school located in NorthWest, DC, November 6, 2009. Read More
This Gram-stained specimen reveals N. gonorrhoeae intracellular diplococci, leading to a positive diagnosis of gonorrhea.
The genus Neisseria consists of aerobic, non-spore-forming Gram-negative coccobacilli, which inhabit the mucous membranes of humans. These microbes require a moist environ... Read More
Simple crystal violet stained preparation mainly consisting of B. subtilis spores with a few scattered rods. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
Tangential sections of hyphae of Mortierella sp. in a skin ulcer 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
Clostridium botulinum on egg yolk agar. Note a absence of precipitate around colonies. 5X - LeBeau Read More
Type IV pilus filaments on Gram-negative bacterial pathogens control movement, attachment, immune escape, and natural transformation. Pili are attractive targets for vaccines and therapeutics because of the key role they play in bacterial virulence as well as their prominent cell surface exposur... Read More
Streak plate isolation of Enterobacter aerogenes grown on MacConkey agar for 24 hours at 37 degree's. Colonies grow pink due to fermentation of lactose. Read More
Blood agar culture of sputum from patient with pneumonia. Compromised host. Colonies of Candida albicans and Pseudomonas aeruginosa. Note hemolysis around colonies of Pseudomas aeruginosa and colony morphology. Read More
Under a magnification of 200x, and using a lactophenol cotton blue mount fixation technique, this photomicrograph reveals some of the ultrastructural morphology exhibited by a Mucor sp. fungal organism. This image depicts two sporangia, a mature structure, which had ruptured, releasing its conte... Read More
This scanning electron micrograph (SEM) depicts a number of Leptospira sp. bacteria atop a 0.1. µm polycarbonate filter.
Leptospira interrogans causes leptospirosis, a usually mild febrile illness that may result in liver or kidney failure. Leptospira is a flexible, spiral-shaped, Gram-negati... Read More
The U.S. Centers for Disease Control has just published a page that offers several public domain images of the H1N1 virus and several 3D graphical representations of seasonal influenza virus. There is also an image of the CDC developed PCR diagnostic test to detect novel H1N1 virus. The images a... Read More
tetanus in a mouse showing body curvature (opisthotonos) Read More
mixed escherichia coli and staphylococcus aureus smear gram stain (1000x) Read More
: 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
Marburg hemorrhagic fever (Marburg HF) is a rare, severe type of hemorrhagic fever which affects both humans and non-human primates. Caused by a genetically unique zoonotic (that is, animal-borne) RNA virus of the filovirus family, its recognition led to the creation of this virus family. The fi... Read More