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On a conference call with Medicines sans Frontiere moments ago, a representative in Haiti said that all of the hospitals to which it would normally refer patients have either collapsed or are otherwise unusable. All MSF can do at the moment is administer first aid. There are no "referral" options for secondary care beyond first aid, but MSF is exploring options to deploy a "floating hospital" to Haiti.
A UN Dispatch reader and close UN observor summarizes some of the initial reactions from the UN and the UN's role in Haiti at the moment.