在从事护士教学工作后约翰.坎贝尔博士（Dr. John Campbell） 转向制作视频，向公众提供有关医学的知识。最近他开始讨论讨论有关 COVID-19 的信息，尽管这些视频引起了广泛的讨论和争议。
After a career of teaching nurses, Dr. John Campbell has turned to making videos discussing information about the COVID-19.
Some of his videos have reached hundreds of thousands and millions of views. Since the beginning of the mass vaccination campaign spearheaded by Big Pharma and mainstream media, the medical researcher from England has been encouraging his around 2.3 million subscribers on YouTube to get vaccinated. But in February 2022, after reviewing the Pfizer documents released by the Food and Drug Administration (FDA), Campbell realized that people should be given enough data to make an informed decision about COVID-19 vaccines.
官网：https://www.youtube.com/c/Campbellteaching/about
