DAR ES SALAAM, April 30 -- If you are reading this somewhere in Tanzania, malaria has almost certainly touched your life. It could be a child in your household who missed a week of school, or a relative rushed to a health facility in the middle of the night. Or, more devastating still, it could be a funeral you attended that should never have happened. That is the impact of the disease we are fighting.

As we continue to commemorate World Malaria Day this month, we want to share with you how Tanzania is paying for that fight, and why we believe the coalition behind it is one of the most important stories in African malaria control and elimination.

If we can end malaria in Tanzania, the prize is an economy that stops losing shillings, hou...