Athiest here. I don't belief in 'beliefs'
Science is the key, not blindly following it, but reading it, understanding it, questioning it. When all of these professionals are trained in the same science and there are contrary views what do you do? Unfortunately there are zealots on both sides that find it impossible to discuss, debate and argue the differing views. To my mind the rabid vaxxers are every bit as bad as the anti-vax crew.
And the moral high grounders tend to be the vaxxers. Given recent information on the vaccines you don't find it prudent to ask questions?