Lara Logon speaking about the border crisis and its potential to be exploited to unleash a 'virus bomb'

Bechamp or Pasteur? A Lost Chapter in the History of Biology (Terrain vs Germ Theory)
https://ia802607.us.archive.org/7/items/bechamporpasteur00hume_0/bechamporpasteur00hume_0.pdf

Pasteur invented pasteurization and vaccines for rabies and anthrax and discovered that many diseases are caused by invisible germs. Béchamp argued that microbes became dangerous when the health of the host—its “terrain” or environment—deteriorated.

The thinking basically goes, and this is something I think you will find timely during these precarious times, is that the severity of the infection will correlate with the patient’s health status. In other words, the unhealthier the lifestyle, the more out of balance a body is, the more susceptible they will be to disease. Further, the disease will be much more severe in that person compared to a body that is physiologically stable and healthy.