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Ebola Outbreak 2014 2015 by Dr. Fauci


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Photo from Haiti: how to diagnose malaria and typhoid

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

Serpentine cording in Mycobacterium tuberculosus

Pictured is a culture of Mycobacterium tuberculosis growing colonies in the distinctive "serpentine cord" form seen in many strains of M. tuberculosis. These cords are made up of chains of cells that make chains due to a cell wall factor of MTB.

The cell wall structure of Mycobacterium is a m... Read More

Stained blood smear preparation showing spiral morphology

Stained blood smear preparation showing spiral morphology. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Strategies to decrease bacterial colonization

Among the bacterial infections that are most difficult to treat, chronic infections associated with bacterial biofilms are one of the most hazardous. Bacterial biofilms are densely packed communities of microbial cells surrounded with secreted polymers. In her doctoral thesis, chemist Shoghik Ha... Read More


This highly-magnified, digitally-colorized transmission electron micrograph (TEM) depicted numbers of virions from a Novel Flu H1N1 isolate. Thanks to the CDC's PHIL for this image. Read More

Brown hyphae of Exophiala jeanselmei

Brown hyphae of Exophiala jeanselmei. Hyphae in wall of 'cyst' Read More

Bacitracin test on Streptococcus pyogenes

Bacitracin test done on a lawn of Streptococcus pyogenes grown on blood agar. The zone of inhibition around the bacitracin disc, approx 14mm measuring the entire length of the zone, indicates sensitivity. The zone of inhibition is red because the red blood cells did not lyse. Grown for 24 hr... Read More

Neoscytalidium dimidiatum arthrospore

It is a well recognized uncommon cause of skin and nail infection of the hands and feet . Unlike Dermatophytosis these mould infections are not contagious. There are few reports of invasive infection caused by N. dimidiatum; most infections occurred in immunocompromised hosts. Arthrospores are ... Read More


Ebola Virus
Colorized scanning electron micrograph of filamentous Ebola virus particles (blue) budding from a chronically infected VERO E6 cell (yellow-green).

Photo taken from NIAID flicker Read More

C. elegans sex-cell division

This montage of tiny, transparent C. elegans—or roundworms—may offer insight into understanding human infertility. Researchers used fluorescent dyes to label the worm cells and watch the process of sex-cell division, called meiosis, unfold as nuclei (blue) move through the tube-like gonads. Such... Read More

Tube morphology

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

ASM GM 2014 - Where Pathogens Can Linger on Airplanes

Many air travelers are concerned about the risks of catching a disease from other passengers given the long time spent in crowded air cabins. New research shows disease-causing bacteria can linger on surfaces commonly found in airplane cabins for days, even up to a week. Participants discuss ... Read More

BacterioFiles 213 - Bird Bacteria Bolster Babies

This episode: Hoopoes inoculate their eggs with protective bacteria!

(6.5 MB, 7 minutes)

Show notes: 
News item/ Read More

Herpes simplex, type 1

Herpes simplex, type 1. Isolate in human fetal diploid cell cultures, identified by direct FA staining Read More

Attachment of several treponemes to testicular cell membranes

Attachment of several treponemes to testicular cell membranes 22 hours post-infection. Note the orientation of the treponemes mediated by their tapered ends and apparent disk-like organelle Read More

Coriolus versicolor

Several "Turkey Tails" on a fallen tree in Hyattsville, MD. Read More

Marburg virus virion

This colorized negative stained transmission electron micrograph (TEM), captured by F.A. Murphy in 1968, depicts a Marburg virus virion, which had been grown in an environment of tissue culture cells. Marburg hemorrhagic fever is a rare, severe type of hemorrhagic fever which affects both humans... Read More

Smallpox vaccine - photos of immunization site

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

Acid-fast rods

Acid-fast rods. (approx X 1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Listeria monocytogenes on chromogenic agar

It's Friday and I can finally enjoy the beach! So I thought it would be nice to reflect my excitement at work growing this happy Listeria monocytogenes ;) Read More
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