[https://www.usefulscience.org/podcast/38\](https://www.usefulscience.org/podcast/38)

The Useful Science team provides a breakdown on clinical trials - what they are, why they matter, and how long they take. As a wave of urgent clinical trials related to COVID19 is unfolding around the world, researchers try to balance the need for vaccines & treatment with ethical concerns and the health of study participants.

Music by [Solomon Krause-Imlach](https://solomonkrauseimlach.com/).

Follow us @usefulsci or email us at [[email protected]](mailto:[email protected]).

Show Notes

• Ethics of controlled human infection to address COVID-19

• What risks should be permissible in controlled human infection model studies?