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Bacillus anthracis tenacity positive on sheep blood agar

B. anthracis Colony Characteristics: A. Consistency sticky (tenacious). When teased with loop, colony will stand up like beaten egg white.

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Bacteria, protozoa, and algae from a wild stream

Under a moderately-high magnification of 2500X, this digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacter... Read More

Staphylococcus aureus bacteria, MRSA

Recently recognized outbreaks, or clusters of MRSA in community settings have been associated with strains that have some unique microbiologic and genetic properties, compared with the traditional hospital-based MRSA strains, which suggests some biologic properties, e.g., virulence factors like ... Read More

Phormidium with Sytox Green

Cyanobacteria (Phormidium) with the vital stain Sytox Green. These cells are dead (green). White arrow shows other bacteria living in association with the cyanobacteria. Read More

Gram-positive Enterococcus sp. bacteria

This digitally-colorized scanning electron micrograph (SEM) depicted large numbers of Gram-positive Enterococcus sp. bacteria.
“Enterococci, leading causes of nosocomial bacteremia, surgical wound infection, and urinary tract infection, are becoming resistant to many and sometimes all standard ... Read More

Treponema pallidum bacteria

An electron photomicrograph of two spiral-shaped Treponema pallidum bacteria.

Here we see two Treponema pallidum bacteria scanned by an electron microscope, magnified 36,000X. T. pallidum is the causative agent of syphilis. It contains one of the smallest prokaryotic genomes consisting of abo... Read More

Malarial Parasite as a trophozoite

This diagrams, as a trophozoite, the various forms that the developing malarial parasite undergoes prior to its schizont stage.

As the parasite increases in size, the ring morphology of the early trophozoite disappears, and becomes what is referred to as a mature trophozoite, which undergoes ... Read More

CAMP test of Group-B streptococci

If the laboratory is not able to identify group-B streptococci (GBS) by the Lancefield grouping procedure, there are other microbiologic tests that can be used to identify GBS. This picture shows one of these tests. It is called the CAMP test. CAMP is an acronym for the authors of this test (Chr... Read More

Measles Viron

This thin-section transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or “virion”, of measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is c... Read More

Rubella virus virions

This negatively-stained transmission electron micrograph (TEM) revealed the presence of Rubella virus virions, as they were in the process of budding from the host cell surface to be freed into the host’s system, thereby, producing an enveloped virus particle, which means that after budding, the... Read More

ASM at the AAAS Meeting in Washington, D.C.

Staff members Garth, Lindsay and Jim at the American Society for Microbiology booth at the American Association for the Advancement of Science meeting in Washington, D.C.

If you happen to be at the meeting today, please stop by and introduce yourself. Read More

Science Comedian Brian Malow at #AAAS

Brian Malow at the Social Media Soiree party during the American Association for the Advancement of Science meeting in Washington, D.C.

Malow was featured in one of the first MicrobeWorld Video episodes about 3 years ago.

Cut and paste this link - http://bit.ly/gTniHl - into your address b... Read More

This Week in Microbiology - Behind the Scenes with Stan Maloy at #AAAS

Stan Maloy of the American Society for Microbiology participates in the first episode of This Week in Microbiology live from the American Association for the Advancement of Science meeting in Washington, D.C.

This Week in Microbiology will officially launch next week. Other guests for the fir... Read More

Art and Microbiology

A collection of funny images about microbiology. Although the text is in Spanish language, it can be easily understood. Read More

"The Unseen World"

Philadelphia artist Kate Kaman (www.katekaman.com) has designed a dynamic larger-than-life sculptural depiction of the most plentiful and ancient microscopic life forms -- bacteria. Suspended throughout an area measuring approximately 130 feet long, 27 feet wide and 41 feet tall, “The Unseen Wor... Read More

Trichophyton rubrum var. granulare

This photograph depicts the frontal view of a Petri dish within which fungal colonies of Trichophyton rubrum var. granulare had been cultured. Revealed is the colonial morphology, which in the case of T. rubrum is said to be waxy, glaborous, i.e., flat to cottony, and display from a frontal pers... Read More

Rubella virus

Stained using a fluorescent antibody (FA) technique, this photomicrograph revealed a positive result for this stained serum specimen from a suspected rubella patient.

Rubella virus is classified as a togavirus, genus Rubivirus. It is most closely related to group A arboviruses, such as easter... Read More

Vibrio vulnificus bacterium

This colorized scanning electron micrograph (SEM) depicted a flagellated Vibrio vulnificus bacterium; Mag. 26367x.

Vibrio vulnificus is a bacterium in the same family as those that cause cholera. It normally lives in warm seawater and is part of a group of vibrios that are called "halophilic"... Read More

X-ray shows ‘thrilling’ biology in action

The world’s first hard X-ray free-electron laser is taking remarkable “snapshots” of the inner life of proteins and viruses.

Two studies published in the journal Nature demonstrate the unique capabilities of the Linac Coherent Light Source (LCLS), located at the Department of Energy’s SLAC Na... Read More

Hemorrhagic fever claims 3 lives in western India

An Ebola-like hemorrhagic fever has killed three people in western India and dozens of doctors will screen a community of about 16,000 people in efforts to contain the disease, a state health minister said this past Wednesday.

India's National Institute of Virology later confirmed that the th... Read More

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