Germ theory denialism is the pseudoscientific belief that
germs do not cause infectious disease, and that the
germ theory of disease
The germ theory of disease is the currently accepted scientific theory for many diseases. It states that microorganisms known as pathogens or "germs" can cause disease. These small organisms, which are too small to be seen without magnification, ...
is wrong. It usually involves arguing that
Louis Pasteur
Louis Pasteur (, ; 27 December 1822 – 28 September 1895) was a French chemist, pharmacist, and microbiologist renowned for his discoveries of the principles of vaccination, Fermentation, microbial fermentation, and pasteurization, the la ...
's model of infectious disease was wrong, and that
Antoine Béchamp's was right. In fact, its origins are rooted in Béchamp's empirically disproven (in the context of disease) theory of
pleomorphism. Another obsolete variation is known as terrain theory and postulates that germs morphologically change in response to environmental factors, subsequently causing disease, rather than germs being the sole cause of it.
History
Germ theory denialism is as old as germ theory itself, beginning with the rivalry of Pasteur and Béchamp. Pasteur's work in preventing beverage contamination led him to discover that it was due to
microorganisms
A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from antiquity, with an early attestation in ...
and led him to become the first scientist to prove the validity of the theory and to popularize it in Europe. Before him, scientists such as
Girolamo Fracastoro (who had the idea that
fomites
A fomite () or fomes () is any inanimate object that, when contaminated with or exposed to infectious agents (such as pathogenic bacteria, viruses or fungi), can transfer disease to a new host.
Transfer of pathogens by fomites
A fomite is any ...
could harbor the seeds of contagion),
Agostino Bassi
Agostino Bassi, sometimes called de Lodi (25 September 1773 – 8 February 1856), was an Italian entomologist. He preceded Louis Pasteur in the discovery that microorganisms can be the cause of disease (the germ theory of disease). He discovere ...
(who discovered that the
muscardine disease of silkworms was caused by a fungus that was named ''
Beauveria bassiana''),
Friedrich Henle (who developed the concepts of ''contagium vivum'' and ''contagium animatum''), and others had proposed ideas similar to germ theory.
Béchamp strongly contested Pasteur's view, proposing a competing idea known as the pleomorphic theory of disease. This theory says that all life is based on forms that a certain class of organisms take during stages of their life cycles and that germs are attracted to the environment of diseased tissue rather than being the cause of it. Proponents of this idea insist that microbes that live in an organism go through the same stages of their development. According to
Günther Enderlein
Günther Enderlein (7 July 1872 – 11 August 1968) was a German zoologist, entomologist, microbiologist, researcher, physician for 60 years, and later a manufacturer of pharmaceutical products. Enderlein received international renown for his ...
, the stages are as follows:
*
colloid
A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others exte ...
–
microbe
A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from antiquity, with an early attestation in ...
(primitive phase)
* bacteria (middle phase)
* fungus (end phase)
Terrain theory
The terrain theory is a variation of Béchamp's ideas that is also an
obsolete medical theory that
held
Held may refer to:
Places
* Held Glacier
People Arts and media
* Adolph Held (1885–1969), U.S. newspaper editor, banker, labor activist
*Al Held (1928–2005), U.S. abstract expressionist painter.
*Alexander Held (born 1958), German television ...
that diseases were caused by the composition of the body. The "terrain", will attract
germ
Germ or germs may refer to:
Science
* Germ (microorganism), an informal word for a pathogen
* Germ cell, cell that gives rise to the gametes of an organism that reproduces sexually
* Germ layer, a primary layer of cells that forms during embry ...
s to come as scavengers of the weakened or poorly defended tissue. Béchamp believed that the
pH of the body is important, and that an
acid
An acid is a molecule or ion capable of either donating a proton (i.e. Hydron, hydrogen cation, H+), known as a Brønsted–Lowry acid–base theory, Brønsted–Lowry acid, or forming a covalent bond with an electron pair, known as a Lewis ...
ic pH will attract germs and an
alkali
In chemistry, an alkali (; from the Arabic word , ) is a basic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The a ...
ne pH will repel them. Pasteur disproved spontaneous generation with a series of experiments in the 1870s.
However, understanding the causes of sickness does not always immediately lead to effective treatment of sickness, and the great decline in
mortality during the 19th century stemmed mostly from improvements in hygiene and
sanitation
Sanitation refers to public health conditions related to clean drinking water and treatment and disposal of human excreta and sewage. Preventing human contact with feces is part of sanitation, as is hand washing with soap. Sanitation systems ...
. In fact, one of the first movements to deny the germ theory, the
Sanitary Movement, was nevertheless central in developing America's
public health
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals". Analyzing the de ...
infrastructure. Providing clean water and sanitation reduced the environment for
pathogens
In biology, a pathogen (, "suffering", "passion" and , "producer of"), in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ.
The term ...
to develop, and
mortality rates fell dramatically.
Status
Germ theory denialism is counter to over a century of experiments and practical observations, and the prevailing opinion of almost all doctors and scientists.
A common thread among many
alternative medicine
Alternative medicine refers to practices that aim to achieve the healing effects of conventional medicine, but that typically lack biological plausibility, testability, repeatability, or supporting evidence of effectiveness. Such practices are ...
proponents is
opposition to vaccines, and some use their disbelief in germ theory to justify their claims. Germ theory deniers make many claims about the biological underpinnings of the theory and the historical record that are at odds with what most modern scientists and historians accept. Another claim from the anti-vaccine community involves the theory that all diseases are caused by
toxins
A toxin is a naturally occurring poison produced by metabolic activities of living cells or organisms. They occur especially as proteins, often conjugated. The term was first used by organic chemist Ludwig Brieger (1849–1919), derived ...
due to inadequate diet and health practices.
See also
*
Vaccine hesitancy
Vaccine hesitancy is a delay in acceptance, or refusal of vaccines despite availability and supporting evidence. The term covers refusals to vaccinate, delaying vaccines, accepting vaccines but remaining uncertain about their use, or using ce ...
*
HIV/AIDS denialism
*
COVID-19 misinformation
*
:Germ theory denialists
*
Hygiene hypothesis
*
Pleomorphism (microbiology)
In microbiology, pleomorphism (from Ancient Greek , ''pléō'', "more", and , ''morphḗ'', form), also pleiomorphism, is the ability of some microorganisms to alter their morphology, biological functions or reproductive modes in response to envi ...
References
External links
*
{{Pseudoscience, state=collapsed
Biology theories
History of biology
Obsolete medical theories
Microbiology
Denialism
Pseudoscience
Alternative medicine
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