//Vaccine expert says pause in Johnson & Johnson COVID-19 study is not unusual

Vaccine expert says pause in Johnson & Johnson COVID-19 study is not unusual

An expert on vaccine research says the pause in a Johnson & Johnson clinical trial of a potential COVID-19 vaccine after a participant became sick is not unusual.”Because this is happening under a global microscope, we hear, we want to know, and we ask the question, ‘What does that mean?'” said Dr. Paul Duprex, director of the Center for Vaccine Research at the University of