In reply to @devisridhar
When we have adequate supply then tiered pricing is used where the rich countries pay a lot more than middle income and low income pay the least which is funded by @gavi. When supply is limited rich countries have to not outbid the others so governments are key to this. #
@devisridhar | 323,857 followers
Replying to @BillGates @gavi
Looking back on 2020/21 (and given you warned of a respiratory pandemic for years before), what do you think is the biggest mistake most countries (with resources) made in responding?

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