“Other side effects include muscle aches, headaches, fatigue, and nausea,” Chandorkar says. “Although fevers and chills are reported, they are not the norm. They are seen in only 1 to 10% of patients.”
The Jynneos vaccine causes side effects that are “similar to most other vaccines,” he adds. “(Comments are) generally much milder than what some have experienced with the COVID-19 vaccines.”
You should talk to a medical professional if you experience a fever or chills more than one to two days after getting the Jynneos vaccine, says Dr. Peter Hotez, a vaccine expert at Baylor College of Medicine.