A fruticose (leaflike) lichen. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
Application of the mycopathogen, Beauveria Bassina, that make spores to introduce a fungus on tarnished plant bugs as an alternative to chemical control. Research and develop microbial control strategies for tarnished plant bugs on alternate hosts using entomopathogenic fungi.
(http://www.ars... Read More
Orange pigmented crustose lichens. From the Wistreich Collection. Read More
Eggs of Hymenolepis diminuta. These eggs are round or slightly oval, size 70 - 85 µm X 60 - 80 µm, with a striated outer membrane and a thin inner membrane. The space between the membranes is smooth or faintly granular. The oncosphere has six hooks. There are no polar filaments extending into... Read More
An algal bloom in a stream bordering land plants. From the Wistreich Collection Read More
The appearance of an algal bloom in Griffith Park, Los Angeles. From the Wistreich Collection Read More
The presence of green algae colonizing the air space. From the Wistreich Collection. Read More
Euglena species in Euglena broth media. From the Wistreich Collection Read More
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are caused primarily by a single strain—USA300—of an evolving bacterium that has spread with “extraordinary transmissibility” throughout the United States during the past five years, according to a new study le... Read More
This image depicts a number of what were “suspected” smallpox scab fragments, from the archives of the Virginia Historical Society (VHS).
These fragments came to light when the Museum was in the process of putting together an exhibit entitled, “Bizarre Bits”, chronicling its collection dating... Read More
Under a low magnification of 5X, this photograph depicted a number of Legionella pneumophila colonies that had been cultivated on Feeley-Gorman (FG) agar. Note the “cut-glass” appearance displayed by the round, off-white colored colonies. FG agar is used particularly in the cultivation of Legion... Read More
Several paramecia showing internal structures. From the Wistreich Collection. Read More
Swarm of paramecia surrounding an unidentified protozoan. From the Wistreich Collection. Read More
This digitally-colorized scanning electron micrograph (SEM) depicted large numbers of Gram-positive Enterococcus faecalis sp. bacteria.
“Enterococci, leading causes of nosocomial bacteremia, surgical wound infection, and urinary tract infection, are becoming resistant to many and sometimes al... Read More
This digitally-colorized transmission electron micrograph (TEM) revealed the presence of hepatitis B virions. The large round virions are known as Dane particles.
Hepatitis means inflammation of the liver. Toxins, certain drugs, some diseases, heavy alcohol use, and bacterial and viral infec... Read More
Click source to view photos of the development of a smallpox immunization lesion on a listener of This Week in Virology's arm. 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
At her microscope, this historic image of bacteriologist Dr. Ida A. Bengston (1881-1952), was taken from the U.S. Public Health Service records.
This photo is symbolic of the importance of laboratory equipment to the CDC’s progress in the improvement of world wide public health standards. Dr. B... Read More