Very broadly, Dr. Geert Vanden Bossche said that taking the vaccine severly weakens our natural immune system and makes us vulnerable to the next virus that affects humans - there will be no natural defense and many will die ...
Which vaccine(s)?
There are three currently widely available in the US.
(Or is this Doctor against ALL vaccines?)
Weaken their immune systems. In the future we can shut them down at-will, with every minor virus that comes along.
A virus like COVID-19 Can mutate a new variant that easily evades our natural defense. The virus wants to reproduce. It randomly produces variants and some of them are immune to the vaccine or resistant to the immune system. What is so unique about that?