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
SEM showing bacteria in close association with human intestinal brush border cells (12000X) Read More
Bacteroides fragilis colonies on blood agar (1:5) Read More
Mycobacterium buberculosis. young colony on a brain heart infusion. typical virulent strain 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
Circular, entire, smooth, yellow colonies of Micrococcus lutea. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. 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
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
Infected guinea pig eye Shigella - Sereny test 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
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
Gram stain of mixed culture of cocci and rods.Streptobacillus morphological arrangement is shown. (Approx X1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
Entomophthora coronata. Conidium discharged into lid of petri dish. Phase. (450X) Read More
photograph of the skin lesions in man with the septicemic type of infection with erysipelothrix rhusiopathiae Read More
Bacteria engineered to act as genetic clocks flash in synchrony. Here, a "supernova" burst in a colony of coupled genetic clocks just after reaching critical cell density. Superimposed: A diagram from the notebook of Christiaan Huygens, who first characterized synchronized oscillators in the 17t... Read More