4 ms·
We usually test vaccines for a decade because of the risk of unknown short term and long term side effects. If we don't know why people are getting blood clots
by throwaway8581 5y ago
We usually test vaccines for a decade because of the risk of unknown short term and long term side effects. If we don't know why people are getting blood clots from the vaccine, then we don't understand the vaccine and could be creating long term issues for many people.
- hef19898 5y agoWe don't. Vaccines are monitored, called phase 4 trials. Taking place after approval. No vaccine was tested for decades before approval. It is only that development and approval takes longer, in case of the Covid vaccines approval red tape was cut. And not trials.