Bacterial shapes One of the ways to identify bacteria is using a microscope and looking at their shape. Coccus shape bacteria are all round, see the image on the right. Spirochetes are spiral shape as seen below left, bacillus are rod shaped shown below right and vibrio are comma shaped, bottom left
HHMI Antibiotics Tutorial http://www.hhmi.org/biointeractive/Antibiotics_Attack/frameset.html |
Gram-Positive and Gram-NegativeGram staining is the application of a crystal violet dye to a culture of bacteria. Bacteria that retain the color of the dye are called Gram positive; bacteria that don't are Gram negative. In the images below to the right shows Gram-positive Staph aureus at the top and Gram-negative Pseudomonas aeruginosa at the bottom. National Microbial Pathogen Data Resource siteSkin, the ounce of prevention worth more than a pound of cure.National Geographic site on skin http://science.nationalgeographic.com/science/health-and-human-body/human-body/skin-article/
The Wired Atlas of the Human Ecosystem
|
Viruses use the invaded cell membrane proteins to their advantage. Link to Topic 2
http://thesynapse.ning.com/video/flu-attack-how-a-virus-invades-1 Below is a clip of how malaria invades the body. Malaria is caused by a spirochete carried on a vector, the mosquito. Syphilis transmission mother to child health consequencesAntibody Production |
Beneficial bacteria added to baby formula helps infant's immune system .http://www.futurity.org/health-medicine/probiotic-baby-formula-boosts-immunity/Stomach 'bugs' for the win......Bugs in the Gut getting stronger....Pathogens beating out the good microbes for a place inside the intestinal tract. Clostridium difficile and norovirus are to blame. http://www.nytimes.com/2012/03/20/health/gut-infections-are-growing-much-more-lethal.html?ref=science
Find out what Frankie does here, complete without hours of buffering. Dr. Pisani TED talk on HIV /public healthHIV in America
Ryan White, the face of AIDS discriminationhttp://hab.hrsa.gov/abouthab/ryanwhite.html
|
Click to set custom HTML
Click to set custom HTML
|
|