People vaccinated for Covid have increased risk of neurological diseases – study — RT World News

Data from about 100 million people compare expected and observed events of side effects

A big data study of 99 million people in eight countries showed greater than expected side effects from different Covid-19 vaccines, the Global Vaccine Data Network (GVDN) said on Monday.

the study, Originally published In the medical journal Vaccine on February 12, it looked at 13 neurological, blood and heart conditions, called “Adverse events of particular concern.” The researchers looked at 99,068,901 vaccinated individuals from ten sites in eight countries.

“The population size of this study increased the possibility of identifying potential rare signals for vaccine safety.” Kristina Vaksova, lead author of the study from the Statens Serum Institute in Copenhagen, Denmark, said:

According to GVDN, the study noted a higher-than-expected incidence of myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the heart sac) among those who took the Pfizer/BioNTech (BNT162b2) and Moderna (mRNA-1273) shots. .

The Moderna vaccine also had a higher rate of acute disseminated encephalomyelitis (ADEM, inflammation and swelling of the brain and spinal cord), with seven events observed compared to two expected within 42 days of the first dose.

The safety signals were for myocarditis “It is constantly being determined” after the first three doses of the mRNA dose, with the highest incidence after the second dose. Signs of pericarditis also appeared after the first and fourth doses of mRNA-1273, and were also observed after the third dose of the Oxford/Astra Zeneca viral vector vaccine (ChAdOx1).

ChAdOx1 recipients had 190 observed cases of Guillain-Barré syndrome (GBS) compared to the expected 76 cases, and 69 observed cases of cerebral venous sinus thrombosis (CVST, a type of blood clot in the brain) compared to the expected 21 cases, according to the study. show up.

GVDN has made the results publicly available on its website Interactive dashboardsin addition to warning that the associations should not be exaggerated and that vaccines are safe and effective.

“By making data dashboards publicly available, we can support greater transparency and stronger communications with the health sector and the public.” said Dr. Helen Petousis Harris, co-director of the GVDN.

The study was part of GVDN's Global Coronavirus Vaccine Safety Project and was fully funded by a $10 million grant from the US Centers for Disease Control and Prevention (CDC).

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