Three organisms inoculated in TSB to look at tube morphology. From left to right:
Staphylococcus aureus: flocculent growth/turbid, growth throughout the tube.
Mycobacterium smegmatis: pellicle, growth at the top of the tube. M. smegmatis tends to stick to the tube and grow up the side.
Ba... Read More
Worldwide, 185 million people have chronic hepatitis C. Since the late 1980s, when scientists discovered the virus that causes the infection, they have struggled to find ways to grow it in human cells in the lab -- an essential part of learning how the virus works and developing new effective tr... Read More
Paracoccidioides brasiliensis tissue or parasitic form grown in vitro at 37 C Read More
Here I try to bring microbiology into Hallowe'en with costumes in class, and some bioluminescent microbial art of famous microbiologists! Read More
Helicobacter is a Gram-negative rod with a helical shape on gram stain. The most known strain is H. pylori, which causes ulcers and chronic gastritis and is said to affect up to 50% of the human population. This particular strain, Helicobacter fennelliae is most commonly found in the feces an... Read More
National Institutes of Health (NIH) scientists report that a single dose of an experimental Ebola virus (EBOV) vaccine completely protects cynomolgus macaques against the current EBOV outbreak strain, EBOV-Makona, when given at least seven days before exposure, and partially protects them if giv... Read More
CHAMPAIGN, Ill. -- A new analysis supports the hypothesis that viruses are living entities that share a long evolutionary history with cells, researchers report. The study offers the first reliable method for tracing viral evolution back to a time when neither viruses nor cells existed in the fo... Read More
LA JOLLA, CA - August 24, 2015 - Scientists from The Scripps Research Institute (TSRI) and the Janssen Pharmaceutical Companies of Johnson & Johnson (Janssen) have found a way to induce antibodies to fight a wide range of influenza subtypes--work that could one day eliminate the need for repeate... Read More
Mycobacterium buberculosis. young colony on a brain heart infusion. typical virulent strain Read More
Red algae Scagelia, showing reproductive tetraspores and golden diatoms. 2nd place winner of Olympus BioScapes photomicrography contest 2012.
Credit: Dr. Arlene Wechezak, Anacortes, Washington Read More
I was asked to consult on a hand print experiment done in a public school in NY showing what grows on our hands and the importance of hand washing....did not know I was going to be in it. A nice start to finish hand print "experiment" in a short 2 min video. Note: 1). I was not consulted on th... Read More
A multitalented scientist and inventor, John William Draper worked as a chemistry professor at the University of New York, where he conducted research in numerous fields, ranging from medicine and philosophy to spectrum analysis and photography. This photograph displaying the physiological chara... Read More
HIV-infected patients remain on antiretroviral therapy for life because the virus survives over the long-term in infected dormant cells. Interruption of current types of antiretroviral therapy results in a rebound of the virus and clinical progression to AIDS. Read More
West Nile virus (WNV) is particularly dangerous in older people, who account for a large number of severe cases and deaths caused by the virus. WNV infection turns serious when the virus crosses the blood-brain-barrier and wreaks havoc among nerve cells in the brain. A study published on July 23... Read More
photograph of carcass of swine showing lesions of swine erysipelas (b&w) Read More
The compound that detectives spray at crime scenes to find trace amounts of blood may be used one day to kill the malaria parasite. Read More
Aspergillus restrictus from generalized aspergillosis. Note radiating hyphae in granuloma Read More
“Predator” bacteria (green) surround “prey” bacteria (red) in this petri dish version of the Serengeti. Rather than eating their prey, however, predator cells release a chemical that activates a suicide gene in the prey. Prey cells also release a chemical, but one that promotes survival of the p... Read More