alex3619
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Interesting to read that there are different forms of LPS. That might explain why we tolerate the LPS that some good bacteria have in our bodies...?
Also, an interesting point to add is that some viruses attach to LPS and it is thought that this helps them to evade the immune system, and be more successful in surviving and infecting cells. Polio is one such virus but there are others as well.
snowathlete, do you have a link for viral attachment? If polio does this, then enteroviruses might too - and given they infect the gut wall, this would give them an evolutionary advantage to reduce the integrity of the gut wall and suppress its immune system.
I don't think we tolerate any form of LPS once its in the general blood stream. However different forms of LPS might modify the severity of the response.