Covid-19 vaccine, does this really work? is this applicable? does this need to be mandatory?. Questions and questions and will remain a question for a moment. It still not proven to cure covid and yet they already started the spreading of vaccine around the world. One of the problem is that, not only UK have produce vaccine there's also China and USA, which make the situation worse and people are not a toy or a test subject for them to experiment and to know the effect of the vaccines. On the other hand, it seems that the vaccine is working since every now and then, everything's going smoothly, there's no seemed any ruckus and many people took the vaccine. We just need to further investigate and study the vaccine and it's effect before taking it. The lives of the people are at stake and that's so precious. We/they should be accountable to this kind of situation.