Moderna spars with U.S. scientists over COVID-19 vaccine trials

Moderna spars with U.S. scientists over COVID-19 vaccine trials

The federal government is supporting Moderna’s vaccine project with nearly half a billion dollars and has chosen it as one of the first to enter large-scale human trials.

But the company – which has never produced an approved vaccine or run a large trial – has squabbled with government scientists over the process, delayed delivering trial protocols and resisted experts’ advice on how to run the study, according to three sources familiar with the vaccine project.