In any significant public health response, you will find multiple actors: the federal ministry, state ministries, local government health departments, WHO, UNICEF, CDC, bilateral donors, international NGOs, local NGOs, and community groups. Every one of these organisations has its own mandate, its own reporting requirements, its own geographic priorities, and its own understanding of what success looks like.
Coordination is the process of aligning all of these. In theory, this is what inter-agency technical working groups, joint planning sessions, and national coordination mechanisms are designed to do.
In practice, coordination is enormously difficult.
I have sat in coordination meetings where three organisations were running parallel surveillance systems that could not talk to each other, and everyone in the room knew this was happening. I have seen response plans designed by committee that satisfied every stakeholder in the room and were completely unimplementable in the field. I have watched organisations protect their data because data, in programme contexts, is also power.
The hardest coordination challenges are not technical. They are organisational and interpersonal. They require people to subordinate their agency's visibility to the collective goal. They require programme managers to share credit. They require senior officials to be told, diplomatically, that the approach they have defended publicly is not working.
What I have learned is that coordination succeeds when three conditions are met. First, there is a single agreed source of truth for key data. Fragmented reporting systems create fragmented understanding. When everyone is looking at the same numbers, the conversation shifts from arguing about whose data is correct to deciding what to do.
Second, decision-making authority is clearly located. Coordination mechanisms that lack authority to make binding decisions become forums for discussion without resolution. Someone has to be able to say: this is what we are doing, and have that decision stick.
Third, the relationships between key individuals exist before the crisis. When an outbreak happens, there is no time to build trust. The trust has to already be there. The investment in relationships during non-emergency periods pays dividends during emergencies that no amount of emergency planning can substitute for.
Coordination is not glamorous. It does not produce the kinds of results that go into press releases. But it is the infrastructure on which every public health intervention runs.