China makes vaccines for the corona virus, scientists there test vaccines for volunteers, and it seems the US also doesn't want to lose to China and makes the corona vaccine.
these two countries are CHINA and the US, competing to make covid-19 vaccines that are safe for the human body,
Please, I hope they be sincere and not to make substance that be dangerous to human being and society too. The world is already facing instability in every area. We want a sincere vaccine and good for every continent of the world.