Recent Articles by William Petri July 08, 2021 Do I Need a COVID-19 Booster Shot? 6 Questions Answered on How to Stay Protected April 26, 2021 Q&A: Dr. Bill Petri Analyzes Restart of the Johnson & Johnson COVID-19 Vaccine April 13, 2021 Dr. William Petri Answers 7 Questions About the Paused J&J Vaccine March 19, 2021 How Effective Is the First Shot of the Pfizer or Moderna Vaccine? January 28, 2021 Why mRNA Vaccines Need Two Doses to Best Work – and What Delays Might Mean November 10, 2020 Why We Didn’t Get a Vaccine by Election Day – But Why We May Get One Soon September 23, 2020 How, and When, Will We Know That a COVID-19 Vaccine Is Safe and Effective? August 21, 2020 9 Reasons You Can Be Optimistic That a Vaccine for COVID-19 Will Be Available in 2021
August 21, 2020 9 Reasons You Can Be Optimistic That a Vaccine for COVID-19 Will Be Available in 2021