Health systems are often judged during emergencies, but much of their resilience is built long before a crisis. Vaccination programmes, disease surveillance, primary care access, laboratory capacity and clear public communication all influence how quickly a system can detect and respond to emerging risks.
Prevention can be less visible than hospital treatment because success often means that an event never becomes a crisis. That makes sustained investment politically difficult, even though the long-term benefits can be substantial.
For policymakers, the challenge is to maintain preparedness during quiet periods rather than rebuilding capacity after every emergency.
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