The top U.S. drug regulator is resisting calls to tinker with how Covid-19 vaccines are administered, sticking to the scientific evidence and its own procedures after being more flexible in the face of outside pressure earlier in the pandemic.
There have been increasing calls worldwide to experiment with dosing regimens to speed up inoculation efforts and arrest a worsening pandemic. However, the Food and Drug Administration’s leadership pledged in a statement late Monday “to make decisions based on data and science.”
