The Hand Symbol-Meaning Native American symbols, like the hand symbol, are geometric portrayals of celestial bodies, natural phenomena and animal designs.Native Indian symbols were used for a variety of reasons and depicted on numerous objects such as tepees and clothing.and Symbol Meaning The next picture illustrates the use of the black hand symbol on the white horse. Black was used to symbolize victory and might be applied to the horse before returning home to the camp. Black Paint was made using ground charcoal, mixed with spit or animal fat, so it was readily available.
Shiga Toxin-Producing E. coli Infection Facts. Escherichia coli, or E. coli for short, is a very common bacterium. There are hundreds of different strains of E. coli. Some are harmless while others cause serious illness.
The Yersinia pestis bacterium causes both bubonic plague, a form of the disease you get from a flea or rat bite, and pneumonic plague, a respiratory infection you get by inhaling the bacteria. Bubonic plague kills via a deadly blood infection, while pneumonic plague causes a fatal pneumonia. Now, scientists have uncovered the steps that led the ancestor of Y. pestis to evolve into the deadly pathogen that causes pneumonic and bubonic plague.