Question

Are vaccines against COVID-19 effective?

30 December 2020. Related: All topics, COVID-19.

Answer

Answer: Simon Collins

Yes, any approved vaccine has been very carefully studied in  a wide range of people.

These first vaccines are highly effective. Both the Pfizer and Moderna vaccines prevent COVID-19 symptoms in about 95% of people. They also prevent severe COVID-19 and might help stop transmission.

The Oxford vaccine is expected to be at least 70% effective.

All these vaccines are much better than first thought possible. At the start of the pandemic  the target for an effective vaccine was set at 50%. All the current vaccines are much better than this.

This is one of more than 65 questions about COVID vaccines. It was produced by and for people living with HIV.
Q&A on COVID vaccines: are they safe and effective?
https://i-base.info/qa/16330