. >> reporter: michael mulgrew heads the union representing nearly 200,000 current and former new yorkteachers and staff.former >> it's the only way we can go back to doing what we wanted toe do which is to teach children who aren't full of fear and anxiety. >> reporter: how many teachers drop out rains to be seen but mande among spalmployees worked. just a week before the deadline to get one dose or face termination, reportedly more than 8,000 new york city hospital workers unvaccinated. by last night, that number dropped to half as many. also tonight, a change of heart for former vaccine skeptic. n.b.a. star lebron james said he received his first vaccine dose. >> after doing my research i things of that nature, i felt it was best suited for me and my family and friends. >> reporter: also, a new nationwide study shows a surge in vaccine acceptance among racial and ethnic groups that lag behind. back in may, a far higher percentage of white americans were vaccinated with at least one dose compared to black or hispanic-americans. but now has not only the gap narrowed considerably but h