ALBUQUERQUE, N.M. (AP) — Top health officials in New Mexico say the U.S. government needs to boost vaccine supplies if it wants the state to meet a new mandate for getting at least one shot into the arms of all teachers by the end of March. Health Secretary Dr. Tracie Collins said during a briefing Wednesday that the state already has vaccinated more than 15,000 educators. With demand still outpacing supplies, the state is in talks with the White House about how to roll out the initiative. Teachers are next in line under New Mexico's phased-in approach. But health officials have been reluctant to offer a timeline given the limited supplies.