"... stopping a disease in its tracks is bad business. In one famous instance, the biotech company Gilead saw its profits fall in 2015–16 as a result of its new hepatitis C drug — because it ended up fully curing most patients. The same perverse incentive structure has sabotaged efforts to create preemptive vaccines, despite urgent calls from public health experts for the last twenty years."

Finland Had a Patent-Free COVID-19 Vaccine Nine Months Ago — But Still Went With Big Pharma
https://jacobinmag.com/2021/02/finland-vaccine-covid-patent-ip