Tessa Lana, at Dr Mercola’s site, gives a tremendous overview of the so-called zombie parasites such as Toxoplasma gondii, which causes infected rats to be attracted to cats, who kill the rats, getting infected with the parasites themselves, and completing the life cycle. These mind-controlling parasites such as Toxoplasma gondii can infect humans as well, resulting in a range of mental ill-effects. That being so, the main mind viruses controlling human behaviour are not biological as such, but political; namely propaganda created by the elites and pumped into the brain as surely as any zombie virus. We have seen this with the entire woke/politically correct agenda, and now with the Covid mandate. I would say that many people are controlled to an even greater degree than the infected rats. The infected rats may well be surprised at the behaviour of some humans.