Which bacteria r deadly to humans?

from where do they come from

Which bacteria r deadly to humans?
Pets may carry bacteria deadly to human.


The superbug can live on the skin or in the nose of a person or pet and not produce symptoms, researchers say. But when it enters a wound, any wound, it can create serious infection that often resists multiple types of antibiotics.





Fire With Fire: Virus Could Combat Deadly Human Bacteria





Viruses that are harmless to humans could help kill fatal drug-resistant bacteria lurking in hospitals, research now reveals.





The bacterium Staphylococcus aureus may cause anything from minor skin lesions to life-threatening pneumonia, meningitis and toxic shock syndrome. In the past 15 years or so, it has become one of the most common germs to get spread around hospitals, with some 500,000 patients in U.S. hospitals contracting a "staph" infection each year.








Bacteria are certainly involved in dirt, disease and death, to which we should add decay. Spoilage of leftover food, decomposition of garden cuttings, decay of dead bodies, or smelly water in a forgotten vase, are all the result of bacterial activity. As is body odor, caries, strep throat, or bubonic plague, to name a few diseases from both ends of the spectrum. No wonder that bacteria receive a bad press.














Context: Bacteria appeared on Earth billions of years ago and have been found everywhere—in the ground, in the air, and in the bodies of most living things.
Reply:Although Ecoli is in your digestive tract, too much can be fatal.