FEMA to open more vaccination centers in New York and Texas FEMA will open additional vaccination centers in Texas and New York next week, part of its effort to potentially set up 100 mass vaccination sites nationwide. And if the military has to man each of these stations, it's possible that there could be 18,000 military personnel involved in putting in vaccines. NEW YORK: -- Medgar Evers College in Brooklyn - will be able to vaccinate 3,000 people a day TEXAS --Houston - NRG Center will be able to vaccinate 6,000 people a day. --Dallas - Fair Park Cotton Bowl Stadium will be able to vaccinate 3,000 people a day.