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Fusobacterium nucleatum

Fusobacterium nucleatum. Gram-negative, anaerobic, nonmotile, rod prokaryote with a long, slender shape and pointed ends. Magnification 3250, scanning electron microscopy. Human microbiota (of the mouth and upper respiratory tract), susceptible to penicillin. Occasional cause of abscesses and blood stream infections. Possible role in periodontal disease. Courtesy of Dennis Kunkel.

Herpes simplex virus

Image of numerous herpes simplex virions visualized by negatively-stained transmission electron microscopy (TEM). This virus belongs to the Herpesviridae family causes herpes via two strains: Herpes simplex virus 1 and herpes simplex virus 2 (HSV-1 and HSV-2). This virus is also known as human herpesvirus. HSV-1 infection manifest as most commonly cold sores (oral herpes) and HSV-2 as genital herpes but can also infect the mouth. Both strains are ubiquitous, contagious and incurable. Symptoms may include blisters around the mouth, lips, nose or genitals. Image courtesy of the Centers for Disease Control and Prevention (CDC / Dr. Fred Murphy; Sylvia Whitfield).

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Mycological Society of France is open to all those interested in the study of fungi, in all their aspects.

CSI is an organization that fosters and supports Immunology research and education throughout Canada.

This bacteria is a rod shaped, microaerophilic, gram-positive organism. It is naturally occuring in the mouth and intestinal tract. The organism is used in the production of acidophilus type dairy goods. It is sometimes used to treat diarrhea and vaginal infections.

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