Friday, November 20, 2009

How bacteria makes a person sick?

Bacteria can make a person sick. But alot of problems come from bacteria that have been destroyed and can't protect us from the harmful bacteria. For instance yeast infections are almost always caused by a lack of the normal flora of bacteria. 60% of all you vitamin K that is used for blood clotting comes from bacteria in your gut. But the three main ways that they cause you to get sick is.





1. The natural flora is destroyed and a "bad" bacteria or yeast can flourish. If this happens then it goes to step 2.





2. The bacteria when it eats nutrients in your blood or body it produces toxins as a byproduct.





3. Or it can actually attack certain cells in your body and can cause harm that way.





Something that is common in older people is that they come in with an infection and the Dr. prescribes a powerful antibiotic called Rocephin. This wipes out the normal flora of the intestines and the person comes down with Clostridium Diff. They then prescribe a more powerful antibiotic called Vancomyacin. This seems to quell the C. Diff. but then they get yeast infections because there is no bacteria to protect them. The bacteria eventually develope a resistant strain called VRE to help combat the void left in the intestine and by this time the person is usually very ill because of the yeast infections and C. Diff. They then develope a Urinary Tract infection by the VRE and develope sepsis and then die.

How bacteria makes a person sick?
Well, there are many ways in which bacteria can make a person sick. But mainly there are two ways in which the operate:


1. Interfering with normal metabolism of the cell


2. Producing toxins which can harm the cell





The bacteria which cause disease are called pathogens and they live in/on our cells where they complete there life cycle.


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