KEY POINTS
  • The head of the NIH told Congress that U.S. health officials will not skip or abbreviate any safety assessments in the development of a coronavirus vaccine.
  • NIH Director Dr. Francis Collins said studying the safety and effectiveness of Covid-19 vaccine candidates is now the agency's "top priority."
  • Infectious disease experts and scientists have said they worry the vaccine approval process in the U.S. could be polluted by politics.

The head of the National Institutes of Health told Congress on Wednesday that U.S. health officials will not skip or abbreviate any safety assessments in the development of a coronavirus vaccine.

NIH Director Dr. Francis Collins said studying the safety and effectiveness of Covid-19 vaccine candidates is now the agency's "top priority" as ModernaPfizer and AstraZeneca race to complete late-stage testing and submit approval applications to the Food and Drug Administration by the end of the year.