Comments by "David Elliott" (@davidelliott5843) on "Germ theory, viruses, and microbiology: The History of Virology" video.

Medics bury their mistakes.
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@antlerking69 Telescope is so good you can see a virus on the moon. ;)
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Medical evidence clearly shows that Vitamin D is hugely important for a correctly working immune system. When D is low the system is slow to respond allowing infections (especially viral) to get out of control then the system hyper-reacts causing damage to the host (cytokine storm). Adequate Vitamin D helps the immune system to act quickly when needed but not go mad when the job is done. There is ample evidence in the literature yet we are still told that an acceptable daily dose of under 1000 IU is adequate when 5000 IU is needed by most people.
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@turtlemom Edward Jenner noted that milkmaids had good complexions. This led him to discover that a dose of the far less damaging cowpox conferred immunity against smallpox.
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