A few years ago I took my three year old son on a steam train. At the start of the trip he was subdued, by the end he was covered in spots; ‘The Train Spotted Me’, he wailed. His nursery …
Dr Catherine Heffernan is PHE London’s Principal Adviser for Commissioning Early Years, Immunisations and Vaccination Services. She is also Senior Lecturer in Public Health (Hon) at the London School of Hygiene and Tropical Medicine.
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