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Lactobacillus plantarum

Lactobacillus plantarum - Gram-positive, rod prokaryote, non-spore forming, anaerobic or microaerophilic, occurs singly or in pairs. Magnification 2,600, Scanning electron microscope. Very rarely pathogenic and is part of the normal flora in man and animals (mouth, vagina, and intestinal tract); "beneficial bacteria" or "probiotics". It has been reported to cause endocarditis, neonatal meningitis and bacteremia. Courtesy of Dennis Kunkel.

Middle East Respiratory Syndrome Coronavirus (MERS-CoV)

Middle East Respiratory Syndrome Coronavirus (MERS-CoV) virion. High magnification digitally-colorized transmission electron microscope (TEM) image. The image shows ultrastructural details from a single, spherical-shaped viron. This virus was first identified in 2012 and belongs to the Coronaviridae family. Most infected individuals develop severe acute respiratory illness with typical symptoms of fever, cough, and shortness of breath. Image courtesy of the National Institute of Allergy and Infectious Diseases (NIAID).

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This virus causes squirrel pox or squirrel fibroma and belongs to the Poxviridae family. Grey squirrels may carry the disease but are mostly immune to it. However, they can infect the red squirrel population. Untreated infected red squirrels have a 100% mortality rate within a 4 to 5 day span. Infected animals display skin tumors or lesions. Transmission of the disease is through contact or also through mosquitoes.

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