Mycobacterium buberculosis. young colony on a brain heart infusion. typical virulent strain Read More
Since it's 1st recorded outbreak (1976) in the Democratic Republic of the Congo's Ebola River Valley, the Ebola virus has been known - and feared - for good reason.
Why, you may ask?
Ebola hemorrhagic fever is potentially lethal and encompasses a range of symptoms including fever, vom... Read More
Life cycle (illustration) of Chlamydia trachomatis Read More
Quantitative precipitin test. Constant antibody with 2-fold increase in antigen concentration. Note inhibition in antigen excess and precipitation in equivalence zone. Read More
Toxoplasma gondii oocysts from cat feces. Taken from the Wistrich Collection. Read More
Infected guinea pig eye Shigella - Sereny test Read More
Telophase HeLa (cancer) cells expressing Aurora B-EGFP (green) (100X), Deconvolution. 36th annual Nikon Small World competition 11th place photography winner.
Paul D. Andrews, University of Dundee, Dundee, Scotland, UK Read More
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
phenomenon called "champagne cork"
have waited half year to catch a strain like that. Read More
Entomophthora coronata. Conidium discharged into lid of petri dish. Phase. (450X) Read More
By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes.
In response to a stressful environment like one lacking food, B. subtilis activates a large set of genes that help it respond to ... Read More
Circular, entire, smooth, yellow colonies of Micrococcus lutea. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
These checklists, scrawled in handwriting on paper pasted to the hospital wall, are used by volunteer doctors and nurses to diagnose and treat patients who come in with symptoms of malaria and typhoid. Both are diseases that we rarely see in the US, but are strikingly common in Haiti. This also ... Read More
photograph of the skin lesions in man with the septicemic type of infection with erysipelothrix rhusiopathiae Read More
This image depicts the quantitative difference in hemolytic reactivity seen in a trypticase soy agar culture plate containing 5% sheep’s blood growing group-D Streptococci (left wedge), group-B Streptococci (middle wedge), and group-A Streptococci (right wedge) bacteria. This plate was grown u... Read More