Blastomyces dermatitidis. Yeast stage from 2-day culture on blood agar at 37 . Note double refractile cell wall Read More
Histoplasma capsulatum in mitral valve. Yeasts and rare hyphal growth in vivo Read More
Colony of Streptomyces (sp.) on Sabouraud's dextrose agar, incubated at 30C Read More
Large (about 5 mm in diameter), lactose positive colonies of Klebsiella pneumoniae on desoxycholate-citrate agar. Cultivation 37°C, 24 hours.
Klebsiella pneumoniae is a common source of hospital-acquired infections. Some of the strains can carry plasmids that harbour genes conferring resistan... Read More
the results of this investigation revealed that the marine actinomycetes collected from the sediments of Caspian Sea
might be a potent source of novel antibiotics. Read More
This pair of confocal micrographs demonstrates how a disease-causing strain of E. coli bacteria brings about diarrhoea by breaking down the waterproof barriers between the cells. The bacteria are seen as small red dots attached to the surface of intestinal cells making tiny pedestals out of one ... Read More
The 1918 Spanish flu epidemic was caused by an influenza A (H1N1) virus.
Responsible for more deaths during World War I than all the bombs, bullets, poison gases, & artillery shells used, it killed more than 500,000 people in the United States, and up to 50 million worldwide.
The possible so... Read More
Cross-section through the center of a three-dimensional (3D) reconstruction of P22 phage, which is a virus that infects Salmonella bacteria. P22 contains many copies each of nine different viral proteins and a single copy of a double-stranded DNA genome (shown in green). The centrally located po... Read More
This negatively-stained transmission electron micrograph (TEM) revealed the presence of Rubella virus virions, as they were in the process of budding from the host cell surface to be freed into the host’s system, thereby, producing an enveloped virus particle, which means that after budding, the... Read More
Exophiala jeanselmei. Note long slender conidiophores with terminal sporulation. Secondary budding of conidia is rare. LCB mount. Read More
Mycobacterium smegmatis colonies on lowenstein-jensen media (2x) Read More
Living green alga Euglena mutabilis. Technique: Differential interference contrast. Credit: Gerd Gunther, Düsseldorf, Germany
Nikon Small World 2012 Honorable Mention. Read More
Mycoplasma pneumoniae. Macrophotograph of 16mm petri dish containing microcolonies characteristics of broth-grown Mycoplasma pneumoniae Read More
Scanning electron micrograph of HIV particles infecting a human T cell. Credit: NIAID, NIH Read More