Yes! It
is common to test negative and still have those co-infections!
That is why the most knowledgeable LLMD's will diagnose based on symptoms and only
hope that the tests confirm the diagnosis. As a matter of fact, Dr. James Schallers research has shown: "No blood smear will be positive for Babesia unless you have a profoundly massive number of infected red blood cells, which is rare. Therefore, no blood smear should be considered negative unless it has been examined for thirty minutes.
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