Why It Is Impossible to Prove That Viruses or Bacteria Cause Disease

  • Save
  • Save

Dr. Tom Cowan, MD, says that scientists have never proved that either viruses or bacteria cause disease, because they never have been isolated and purified sufficiently to eliminate the possibility that something else was the cause. Even Louis Pasteur wrote in this diary that he was unable to do this. Without proof, the entire germ theory of infectious disease is based on belief, not science.

Visit our Classified ads.

Check out our Classified ads at the bottom of this page.

Recent stories & commentary


For classified advertising rates and terms, click here. The appearance of ads on this site does not signify endorsement by the publisher. We do not attempt to verify the accuracy of statements made therein or vouch for the integrity of advertisers. However, we will investigate complaints from readers and remove any message we find to be misleading or that promotes anything fraudulent, illegal, or unethical.

Notify of
Newest Most Voted
Inline Feedbacks
View all comments
2 years ago

It may be true that absolute proof does not exist, but there is overwhelming (and I do mean overwhelming) evidence that some virus and bacteria cause diseases. This is one of those interesting issues that is worth further investigation from many angles, but anyone who believes no diseases are caused by virus or bacteria has not looked at the evidence.

11 days ago
Reply to  bootstrap

actually the opposite is true. you are simply mistaking correlation for causation. try again. Viruses have never been shown to cause disease whatsoever, and there is no valid empirical evidence to the contrary, using proper scientific methodology and controls. ZERO. The burden of proof is on the ones making the claim in the affirmative about viruses causing disease (yourself and those who take the virus theory as valid), not the critics. This is because, in physical science (as opposed to abstract sciences like logic or math), by definition, one cannot prove a negative (such as saying prove that viruses do… Read more »