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Tracheal aspirate

Tracheal aspirate. Gram stain smear (1200X) Read More

Activated Sludge

Activated sludge. Note the bacterial rods and filament within the floc. (5000X) Read More

Varicella

Varicella. Vesicle smear from case of chicken pox. Direct fluorescent antibody (FA) staining readily differentiates chicken pox or zoster lesions from those due to Herpes simplex viru Read More

Varicella lesions

Varicella lesions. Nine year old male (1X) Read More

Cytomegalovirus in human foreskin tissue cells(40X)

Cytomegalovirus in human foreskin tissue cells (40X) Acridine orange stain. Dark, olive green bodies in refractile cells are intranuclear inclusions. Also show paranuclear bodies which are stained darker Read More

Herpes simplex, type 1

Herpes simplex, type 1. Isolate in human fetal diploid cell cultures, identified by direct FA staining (R.W. Emmons) Read More

Mycobacterium smegmatis

Mycobacterium smegmatis. Acid fast stain (1200X) Read More

Exophiala jeanselme

Exophiala jeanselmei. Some conidiophores are very short lateral pegs on hyphae. LCB stain Read More

Exophiala jeanselmei hyphae

Exophiala jeanselmei hyphae in walls of 'cyst'. Phaeohyphomycosis Read More

Neisseria meningitidis

Neisseria meningitidis colonies on chocolate agar with positive oxidase test as indicated by black colonies (1:2) Read More

Normal guinea pig eye

Normal guinea pig eye (see http://www.microbeworld.org/index.php?option=com_jlibrary&view=article&id=2524 for other, infected eye via Sereny test). Read More

Infected guinea pig eye Shigella - Sereny test

Infected guinea pig eye Shigella - Sereny test Read More

Hyphomyces destruens

Cross section of granule of Hyphomyces destruens in hyphomycosis Read More

Isolating Histoplasma capsulatum

Small park at 7th St. and Pennsylvania Ave, Washington, DC. Histoplasma capsulatum was isolated under trees where starlings roosted Read More

Histoplasma duboisii

Histoplasma duboisii. The single nucleus, characteristic of Histoplasma duboisii (and of Histoplasma capsulatum) can be seen in many of the fungal cells. Note large cell size Read More

Exophiala jeanselmei

Exophiala jeanselmei. Note long slender conidiophores with terminal sporulation. Secondary budding of conidia is rare. LCB mount. Read More

Exophiala jeanselmei

Exophiala jeanselmei. 37 Days at 30C on cornmeal agar. Dark brown slow-growing colony Read More

Entomophthora coronata in tissue

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

Conidiophores of Exophiala jeanselmei

Conidiophores of Exophiala jeanselmei, LCB stain Read More

Blastomycosis

Blastomycosis, showing atypical abscesses of foot Read More

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