The mass purchase of Covid-19 vaccines has once again shrouded Latin America in a cloak of opacity. Pressure from the laboratories and government desperation to acquire millions of vaccines in a race against time have brought about changes to the law in almost every country in the region.

https://poderlatam.org/en/2021/03/pharmaceutical-companies-sold-vaccines-to-latin-american-with-legal-and-tax-benefits/