Staphylococcus is a gram positive, cocci shaped, genus of bacteria. Observed under a microscope will reveal they exist in microscopic ‘grape-like’ clusters. One species of staphylococci, Staphylococcus aureus, can grow at temperature ranges of 15-45ºC and at a relatively high NaCl concentration of 15%.
Only a tiny amount of bacteria found on Earth are actually associated with disease. The number associated with human disease is as low as 0.001%. Bacteria are extremely small when compared to humans, for example the width of an average bacterium is often no greater than 1.5μm.
Bacteria exist naturally on many biological surfaces, for example the skin or the lining of the intestines. Bacteria like these make up the body’s natural flora and have a range of symbiotic relationships; a good example would be the flora of the rumen in cattle which degrade food materials, providing energy for both the [...]
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