Talk:Bacteria and the body

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Discussion on relevance of Gram Stain to Healthcare[edit source]

The main reason it is relevant to know whether a particular bacteria is Gram-positive Vs. Gram-negative, is because it tends to effect which class of antibiotics one would use to kill an infection caused by a particular bacteria. Generally speaking, Gram-positive bacteria tend to be resistant to the weaker antibiotics (such as cephlex), while stronger antibiotics will kill it easily, if its not a particularly resistant strain. For example, we know that most bacteria responsible for UTIs are Gram-negative, and we know that penicillin isn't particularly effective against gram-negative bacteria, so we opt for a different drug class to treat that type of infection.