Side Effects of COVID-19 Vaccines: What You Need to Know

A major survey carried out by the Global Covid Vaccine Safety Project is setting social networks on the fire.

The study in question, published on February 12 under the direction of Danish epidemiologist Kristýna Faksová, consisted of digging into data from eight countries, data totaling 99 million people, in search of "adverse" effects during the period going from December 2020 to August 2023. The researchers then compared the occurrences of these side effects with those of the period 2015-2019: this is what we call the ratio “observed effects” compared to “expected effects” —the aim therefore being to determine whether the massive vaccination campaign against COVID had led to these side effects being observed more often.

The main side effects studied and recorded in this study

• acute disseminated encephalomyelitis, one of the 13 side effects mentioned, was observed in 7 cases out of 183 million doses, or 0.038 cases per million;  it was almost 4 times more frequent after the first dose of Moderna messenger RNA vaccine. 
• the famous myocarditis, undoubtedly the side effect which caused the most concern at the start of the vaccination campaign, appears in one person in 1.75 million, and only with one of the vaccines; occurred after each of the three vaccines studied (Moderna, BioNTech/Pfizer and AstraZeneca).
• it was observed 2.5 times more Guillain-Barré Syndromes and 3 times more cavernous sinus thrombophlebitis (brain pathologies) after the first dose of the Astra-Zeneca vaccine.