vaccination and gut flora
here it one of them...I don't know it specifically addresses flora
I would think the Rota vaccine would definitely have an impact on gut flora.
This is about the cholera vaccine:
I actually think that if a child had altered gut flora to begin with say from being a csection or having antibiotics as an infant, it will be more susceptible to vaccine damage, but I realize you are asking specifically if vaccines alter gut flora in a negative way.
'Children who are born with severely damaged gut flora are not only more susceptible to disease; they're also more susceptible to vaccine damage, which may help explain why some children develop symptoms of autism after receiving one or more childhood vaccinations. '
I found this article here very informative. It makes a lot of sense about the gut flora, method of delivery, and so on. Def. be looking into this topic some more.