While it is possible, the most likely thing that happened is that your friend is seronegative, but has Lyme anyway, as this is actually quite common. Sometimes one infection is kind of "hidden" because the levels of bacteria aren't very high, and so the body is only dealing with what's most threatening at that point in time.
In that case, the person should only treat Bartonella and Babesia (assuming they have zero Lyme symptoms), and watch for Lyme symptoms to show up during treatments.
I would suggest that they see a LLMD at least at first, for more direction.
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New set of infections 8/2014 - still treating.
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