https://theconversation.com/cubas-covid-vaccines-the-limited-data-available-suggests-theyre-highly-effective-172725 https://theconversation.com/cubas-covid-vacc

https://theconversation.com/cubas-covid-vaccines-the-limited-data-available-suggests-theyre-highly-effective-172725 https://theconversation.com/cubas-covid-vaccines-the-limited... makes me think if they can do it under economic pressure due to sanctions, so anybody without these constraints should do even better. If not they are just scammers, trying to ride the wave until it breaks.