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As for testing for specific microbes? An independent study and a report costs roughly $10,000 US for a half dozen pathogens in media.
A minimum human test on a single microbe done in a third world laboratory costs about $50,000 US.
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Stop your excuses, you can do some experiments yourself with a microscope and a camera :
-identify the harmful organisms
-capture a video before/during/after the electrisation. Doable, cheap. The hard part is to identify the harmful organism. A student in infectious diseases can probably help.