People who have been at Dagblog long enough know that I was on it about antidepressants, the most popular being the serotonin stimulating SSRI drugs. I blogged about it heavily ten years ago and tied it to a mass shooting phenomenon that, certainly at that time, was at a very high level.
Many of the same companies, like Pfizer, which trade in pharmaceuticals, traded also in these vaccines. The government has pushed a sort of enforced competition with these vaccines, hand picking several favorite companies to compete with one another for contracts and acceptance by the public.