The virus kills on the order of 1% of people who contract it, and can cause serious illness or death even for healthy people, so anyone who is able to get the vaccine should get the vaccine. It's not like you're being asked to give up an organ or something; you're being asked to protect yourself, and protect those unfortunate enough not to be able to get the vaccine themselves as well. Rather than quibbling over percentages, why not ask yourself what ethical foundation a healthy person could have to not get the vaccine once it's been proven safe and effective.