The pandemic has wiped out entire sections of many developing economies. Any policy intervention should treat the fight against COVID-19 like a war and the hardest-hit economies like conflict zones.
It is precisely because the coronavirus doesn’t respect borders that global cooperation is the only shot at defeating it.
The sooner countries can implement tough mitigations, the lower the scope of the pandemic and subsequent damage to the economy will be. Even those countries without any confirmed cases should act now.