The largest COVID vaccine study to date has identified some risks associated with the shot. Researchers from the Global Vaccine Data Network in New Zealand analyzed 99 million people who received COVID vaccinations across eight countries. They monitored for increases in 13 different medical conditions in the period after people received a COVID vaccine.
People who received certain types of mRNA vaccines were found to have a higher risk of myocarditis, which is inflammation of the heart muscle. Some viral-vector vaccines were linked to a higher risk of blood clots in the brain, as well as an increased likelihood of Guillain-Barre syndrome, a neurological disorder in which the immune system attacks the nerves.
The size of the population in this study increased the possibility of identifying rare potential vaccine safety signals,' lead author Kristýna Faksová of the Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark, said in the release. 'Single sites or regions are unlikely to have a large enough population to detect very rare signals.' Doctors react to the findings Dr.
Dr. Jacob Glanville, CEO of Centivax, a San Francisco biotechnology company, also reacted to the study’s findings. 'This study is confirming in a much larger cohort what has been previously identified in the original studies during the pandemic — myocarditis and pericarditis as a rare side effect of mRNA vaccines and clots as a rare side effect of the viral vectored vaccines,' he told Fox News Digital.
The project is supported by Centers for Disease Control and Prevention , a component of the U.S. Department of Health and Human Services . More than 80% of the U.S. population has received at least one dose of the COVID vaccine, per the CDC. Fox News Digital reached out to Pfizer and Moderna, makers of mRNA COVID vaccines, for comment. For more Health articles, visit www.foxnews.com/health.