Here is a question to be pondered over the holiday. In view of their metabolism and virulence characteristics, why does not Helicobacter pylori cause UTI, and why does Proteus mirabilis not colonise the stomach?
Zaim Gashi
Meybi, due to H. pylori not have defensive machanism in UTI, and P. mirabilis not can live in gastric juice because not have urease enzim.
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Roger Bayston
But both can attach to epithelium, and both produce large amounts of urease (and therefore ammonia)
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