Even one case can cause major disruption:
GP or A&E visits, possible hospital admission
Isolation for cases and contacts (if there is a confirmed case of measles in a school, any close contact who has not been vaccinated will have to isolate for 21 days. This could prove very disruptive to a child’s education)
School or childcare closures for cleaning and tracing
High costs: the 2012–13 Merseyside outbreak cost £4.4 million, 20 times more than prevention.
Outbreaks burden the NHS and local authorities and disrupt families, workplaces, and education.