Every person known to be infected with COVID-19 after attending a health conference in Germany was vaccinated, according to a new study.
All people who reported testing positive for COVID-19 said they had received at least two doses of a COVID-19 vaccine.
Approximately 4,462 people attended the conference in Berlin in the fall of 2022 but just 1,355 filled out a survey and only about half of those were tested after the conference, researchers said in the new paper, published on June 13 by JAMA Network Open, a journal from the American Medical Association.
Of the people who filled out the survey and were tested after the conference, 109, or 14 percent, tested positive for COVID-19….