All 5,000 of the Houston Health Department’s new COVID-19 vaccination appointments were claimed about an hour after they were made available Sunday morning, according to the department.

The Houston Health Department opened 5,000 new COVID-19 vaccination appointment slots for the first doses of the Moderna vaccine.

The doses will be administered April 1-3 at Delmar Stadium.

Those who are 18 or older can secure an appointment here. The appointment portal will close when the slots are full.

Appointment registration is available by phone for residents 60 and older through the Area Agency on Aging at 832-393-4301. Those with disabilities can call the Aging and Disability Resource Center at 832-393-5500. Anyone else who needs registration assistance can contact the COVID-19 call center at 832-393-4220.