HOUSTON (AP) — A giant vaccination center is opening in Houston to administer 126,000 coronavirus doses in the next three weeks. Nevada health officials are working overtime to distribute delayed shots. And Rhode Island is rescheduling appointments after a vaccine shipment failed to arrive as scheduled earlier in the week.

From coast to coast, states were scrambling Tuesday to catch up on vaccinations a week after winter storms battered a large swath of the U.S. and led to clinic closures, canceled appointments and shipment backlogs nationwide.

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