Read the Wiki article on this well known quack.

https://en.wikipedia.org/wiki/Vernon_Coleman

Excerpt:

Vernon Coleman (born 18 May 1946) is an English conspiracy theorist,[1][2][3] anti-vaccination activist,[4][5] AIDS denialist,[6][7] blogger and novelist who writes on topics related to human health, politics and animal issues.

Coleman's medical claims have been widely discredited and described as pseudoscientific. He was formerly a newspaper columnist and general practitioner (GP).