Quantitative precipitin test. Constant antibody with 2-fold increase in antigen concentration. Note inhibition in antigen excess and precipitation in equivalence zone. 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
Escherichia coli isolated from a patient with diarrhea on MacConkey Agar.
Its simply beautiful, one of the first isolations I made. Read More
Gram-negative rods, possibly E. coli. (approx. 1000 X). Taken from the Wistreich Collection. Read More
Colorized scanning electron micrograph of malaria (Plasmodium yoelii nigeriensis) oocysts ( thick-walled structure in which sporozoan zygotes develop) developing on the midgut wall of the mosquito Anopheles.
Credit: Hilary Hurd, Wellcome Images Read More
The Human Microbiome Project has spent two years surveying bacteria and other microbes at different sites on 242 healthy people. The chart below hints at the complex combinations of microbes living in and on the human body.
The New York Times - Science Read More
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
photograph of the skin lesions in man with the septicemic type of infection with erysipelothrix rhusiopathiae Read More
Aspergillus restrictus from generalized aspergillosis. Note radiating hyphae in granuloma 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
Here are photographs I took during our visit to Cold Spring Harbor Laboratory to record This Week in Microbiology #40. We roamed around campus scouting locations befo... Read More
I was at a tech meeting hosted by Amazon Web Services to see how I may use some of their cloud computing services for this site. One segment of the presentation was devoted to customers who use AWS for their sites or work. The slide you see in this image comes from Michael Schatz, Researcher at ... 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
Gram negative diplococci in blood smear of patient taken 2 hours after dental cleaning 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
Several paramecia showing internal structures. From the Wistreich Collection. Read More