The reasons for the slow start in the United States include a chronic lack of public health funding and the absence of unified communication about the vaccines and their availability. Chan School of Public Health and an assistant health secretary in the Obama administration. Without a significant speedup, vaccinating enough people in the United States to achieve herd immunity will take years, not months. The two doses are spaced 28 days apart for Moderna’s vaccine, the second to gain regulatory clearance in the United States. Many states, she said, will need support building out the workforce required to administer thousands of shots every day.

Source: Washington Post December 30, 2020 21:59 UTC