The title says it all: Diseases Without Borders. This is a global public good, just like reducing carbon emissions. The payoff to organized action is huge (as is the cost of inaction).
It's good to see the World Bank take a lead on this issue, since it can't be left to private markets. The World Bank is the perfect agency for doing this, given its multisectoral mandate and global reach.
These issues have been ignored in favor of more attention-grabbing health interventions with much lower payoff for health outcomes.
Developed countries made these low-cost public health investments with high long-term payoffs. It is in their interest to ensure this is done across the world, to avoid the costs of pandemics to their own lives and economies.