SIDS and vaccines

So i need some info. My first son we have all his vaccines up to date. My son is almost two months end of august and he is scheduled end of august for his 2 month. A friend was telling me all the bad about vaccines as she does not agree with them. She brought up sids peaks from 2-4 months and its because whats in the vacvines the baby brain cant handle it! Please someone can u give me.input