According to an American study published on January 18 in Jama Network, 76% side effects felt following a vaccine injection would be related to theeffet nocebo. Roughly speaking, this means that the majority of patients experience adverse effects because they expect them.
Stress-related symptoms
To measure the extent of this phenomenon, the researchers analyzed data from 45,000 volunteers involved in 12 clinical trials of vaccination once morest Covid-19. All vaccines were therefore included in the study. Some of the participants thus received one dose of vaccine while the other received a placebo. Verdict? A large number of people who received a neutral product still experienced side effects following the injection. According to the researchers, these effects felt following the vaccine would therefore be related to stress and anxiety rather than the content of the active substance…
The nocebo effect behind 76% of adverse effects of Covid-19 vaccines https://t.co/fCSC8hBEb9 #vaccine anti-covid
— Edouard Grandpré (@eouard) January 24, 2022
