potsnpans said...
When I first saw this I was thinking it was nothing new really but maybe this is the significant part:
"(They employed) RNAscope to determine whether the spirochetes were viable"
I understand Sapi's team found biofilm so maybe that also assumes viability somehow...
yep there are methods now that can tell the difference between live, currently metabolising spirochetes and dead ones - i think Zhang et all have been using that in some of their papers.
but the original lady who died was studied so closely because she was the first case proven by culture to have live spirochetes after IV ceftriaxone - thought to be bactericidal for Lyme up till that time - so they knew 20 or so years ago that they can survive most even IV abx.
so i don't think the live bit is really new.
perhaps its just the fact that the medical establishment doesn't seem to want to acknowledge that it happens that drives the researchers to produce additional papers on the topic.
what i found interesting in the Sapi paper was the distribution of microcolonies in organs.
so spirochetes were no so much spread uniformly throughout the tissues - or found in large clumps - but concentrated in many many tiny colonies - scattered throughout many organs - each containing many spirochetes in biofilm. That has implications for organ function and treatment approaches.