There's a reason child vaccination rates are falling – and it's not social media
Twenty-week-old Grayson easily could have become one of the tens of thousands of British babies left unvaccinated against polio. His mother, Lily, agrees with the principle of immunisation. But overwhelmed by the early weeks of motherhood, and suffering from post-partum depression after a traumatic birth, she was daunted by the prospect of a long journey…
