
Normally, vaccine development takes so long because of limited resources and the time it takes to prepare for and obtain funding to do the next phase.
In the search for a COVID-19 vaccine or antibody we’re not cutting any corners or skipping any steps. We are overlapping some of the steps instead of doing them one after the other.
With funding from the U.S. government, these COVID-19 vaccines began getting manufactured in large quantities while the phase 3 trials were being conducted. This manufacturing was a risk, because we didn’t yet know if the vaccines were effective. This risk was taken because of the public health crisis. If the studies show the vaccines are not effective, they will be destroyed. At every stage of the vaccine development process our primary concern is the safety of the public.
We need your help to keep learning and improving vaccines against COVID-19. We made history with safe and effective vaccines and we’ll keep working as long as there are people to protect, variants emerging, and research answers needed to end this pandemic. To participate:
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Content last reviewed on May 12, 2021