Coronavirus vaccine trial participants report day-long exhaustion, fever and headaches — but say it’s worth it

Luke Hutchison woke up in the middle of the night with chills and a fever after taking the Covid-19 booster shot in Moderna’s vaccine trial. Another coronavirus vaccine trial participant, testing Pfizer’s candidate, similarly woke up with chills, shaking so hard he cracked a tooth after taking the second dose.

High fever, body aches, bad headaches and exhaustion are just some of the symptoms five participants in two of the leading coronavirus vaccine trials say they felt after receiving the shots.

In interviews, all five participants — three in...