I have doubts about the Covid vaccines because they were developed so quickly.

It’s true that these vaccines were developed a lot more quickly than traditional vaccines, but the development wasn’t rushed. Several factors made it possible. Scientists already knew a lot about coronaviruses because they cause other diseases. They also started working on the mRNA technology used in the Pfizer and Moderna vaccines more than 10 years ago with the goal of using it to develop vaccines for new diseases quickly in an emergency. Once the Covid vaccines were developed, researchers went through all the usual steps of testing them, but saved time by doing them in parallel instead of one after the other.

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1. I already had Covid, so why would I need the vaccine?
2. Will the vaccine protect me against variant strains of the coronavirus?
3. Are there important differences between vaccines?
4. How do we know the vaccine is safe and effective?
5. I read the vaccine is 95% effective. Does that mean there is still a 5% chance I could get Covid?
6. I am fully vaccinated. Do I need a booster shot?
7. What do we know about side effects?
8. I have doubts about the Covid vaccines because they were developed so quickly.