A federal appeals court ruled Monday a COVID vaccine mandate for New York City teachers and other public school workers can go into effect. A three-judge panel lifted a temporary ban on the mandate that was originally set to take effect Monday. “Federal appeals exhausted. Done. The mandate moves forward,” Mayor Bill de Blasio said. The United Federation of Teachers said 3% of teachers (about 3,400) remain unvaccinated. School workers now have until 5 p.m. Friday to get their first dose, or risk losing their jobs, de Blasio said. “If you have not gotten that first dose by Friday 5:00,...