The UK Health Security Agency has updated the routine childhood immunisation schedule starting from 1 January 2026, including a new appointment at 18 months and the addition of the MMRV vaccine.

UK · 2026-08-24

1. Step 1 · The triggerThe UK Health Security Agency updates the childhood immunisation schedule.
2. Step 2 · Knock-onHealthcare providers adjust their vaccination schedules to include the new MMRV vaccine.
3. Step 3 · Knock-onVaccine manufacturers may experience increased demand for MMRV vaccines as a result of the updated schedule.
4. Step 4 · Reaches youIncreased vaccination rates could lead to improved public health outcomes and reduced healthcare costs associated with preventable diseases.

The trigger is reported by the source below. The steps that follow are Branch²’s traced reasoning — how the shock could reach a business like yours, not a prediction.

Source: gov.uk

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