Image Gallery: Rocky Mountain Scenery on Interstate 70/Highway 82 from Denver to Aspen, Colorado

Text By: Wikipedia The Rocky Mountains, also known as the Rockies, are a major mountain range located in western North America. The Rocky Mountains stretch 3,000 km (1,900 mi) in straight-line distance from the northernmost part of British Columbia, in western Canada, to New Mexico in the Southwestern United States. The northern terminus is near … Continue reading Image Gallery: Rocky Mountain Scenery on Interstate 70/Highway 82 from Denver to Aspen, Colorado

Campylobacter jejuni Gastroenteritis

By De Wood, Pooley, USDA, ARS, EMU. - Agricultural Research Service (ARS) is the U.S. Department of Agriculture's chief scientific research agency., Public Domain, OpenStax Microbiology Campylobacter is a genus of gram-negative, spiral or curved bacteria. They may have one or two flagella. Campylobacter jejuni gastroenteritis, a form of campylobacteriosis, is a widespread illness that is caused by Campylobacter … Continue reading Campylobacter jejuni Gastroenteritis

E. coli Infections

Source: OpenStax Microbiology OpenStax Microbiology The gram-negative rod Escherichia coli is a common member of the normal microbiota of the colon. Although the vast majority of E. coli strains are helpful commensal bacteria, some can be pathogenic and may cause dangerous diarrheal disease. The pathogenic strains have additional virulence factors such as type 1 fimbriae that promote colonization of the colon … Continue reading E. coli Infections

Typhoid Fever

Almroth Edward Wright developed the first effective typhoid vaccine.By Unknown author - [1], CC BY 4.0, OpenStax Microbiology Certain serotypes of S. enterica, primarily serotype Typhi (S. typhi) but also Paratyphi, cause a more severe type of salmonellosis called typhoid fever. This serious illness, which has an untreated mortality rate of 10%, causes high fever, body aches, headache, nausea, lethargy, … Continue reading Typhoid Fever


Salmonella entering an intestinal epithelial cell by reorganizing the host cell’s cytoskeleton via the trigger mechanism. (credit: modification of work by National Institutes for Health) OpenStax Microbiology Salmonella gastroenteritis, also called salmonellosis, is caused by the rod-shaped, gram-negative bacterium Salmonella. Two species, S. enterica and S. bongori, cause disease in humans, but S. enterica is the most common. The most common serotypes of S. … Continue reading Salmonellosis

Anatomy and Normal Microbiota of the GI Tract

(a) The structure of the wall of the small intestine allows for the majority of nutrient absorption in the body. (b) Villi are folds in the surface of the small intestine. Microvilli are cytoplasmic extensions on individual cells that increase the surface area for absorption. (c) A light micrograph shows the shape of the villi. … Continue reading Anatomy and Normal Microbiota of the GI Tract

Nongonococcal Urethritis (NGU)

Ureaplasma urealyticum microcolonies (white arrows) on agar surface after anaerobic incubation, visualized using phase contrast microscopy (800×). The black arrow indicates cellular debris. (credit: modification of work by American Society for Microbiology) OpenStax Microbiology There are two main categories of bacterial urethritis: gonorrheal and nongonococcal. Gonorrheal urethritis is caused by Neisseria gonorrhoeae and is associated with gonorrhea, a … Continue reading Nongonococcal Urethritis (NGU)