Is it normal that i hate people?

I just generally think that people are bad and I hate being around them, unless I know them very well. When I go in public, I hate when people come around me and the sound of their voice just bothers me so much. Especially children, and when I hear them talk and cry I just wish that they would drop dead. People are also really disgusting because a lot of people come out of their house when they are sick and cough and sneeze without thinking of others and it is disgusting. I feel as though I'm cleaner than everyone else even my family, and people just disgust me.