What evidence for probiotic "good" viruses, yeasts, and other microorganisms?

Answered on August 19, 2014
Created March 24, 2012 at 6:20 AM

We have heard about probiotics. Dr. Natasha Campbell-McBride mentioned in a recent WAPF talk that there are probably "good" viruses, and other microorganisms? This would make sense from an evolutionary point of view because they've lived in guts for millennia.

John Durant made also a reference http://hunter-gatherer.com/blog/are-there-good-viruses

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on March 24, 2012
at 08:15 AM

One likely route of viral benefit is in antibacterial action.

Viruses that infect bacteria, known as bacteriophages, can infect pathogens with little damage to us. Most of the extensively studied bacteriophages infect strains of E. coli, though phages exist that can infect various Staphylococci, Streptococci, Listeria, Shigella, and Vibrio bacteria, just to name a few.

Having bacteriophages come in and kill off disease causing bacteria or at least reduce them to numbers which our immune system can handle has great potential benefit to us, especially if we want to avoid using broad spectrum antibiotics that can kill off good bacteria.

Beyond that, I would bet there are other other mechanisms by which certain viruses are beneficial. Here's an interesting paper on the subject of human symbiotic viruses: http://jmm.sgmjournals.org/content/58/4/531.full

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