Covid-19 vaccination: what are the side effects?
Since the start of the vaccination campaign against Covid-19 in France, the National Medicines Safety Agency has carefully monitored vaccine safety. Here is the latest report from February 5 reports.
The pharmacovigilance survey
The disease caused by Sars-Cov-2 is recent and so are the vaccines. Although essential to protect the population, the precious sera have been the subject of heightened surveillance from the start, to alert to their safety if necessary. This is why the Medicines Agency has set up an investigation to monitor potential mild or serious side effects in real-time. Healthcare professionals, patients who have received an injection or those close to them can report any harmful reaction following the administration of an anti-Covid vaccine. In the third report, the CRPVs (Regional Pharmacovigilance Centers) located in Bordeaux and Marseille report unwanted effects in connection with the Community vaccine, developed by the Pfizer / BioNtech duo. The committee thus analyzed 1,356 adverse effects. In addition, 23 cases of adverse reactions were reported by the CRPVs of Lille and Besançon, concerning the Moderna vaccine. The report indicates in particular the death of 57 vaccinated people. They were very old or with a long history. Therefore, 'the number and characteristics of these cases do not support a conclusion to a potential role for the vaccine'. These data correspond to those received by the European Medicines Agency (EMA), which specifies the ANSM.
Known side effects
New side effects have appeared and are now under surveillance. Among them, 9 cases of Herpes Zoster (skin rashes), 4 cases of vasculitis, 22 cases of stroke (including 7 ischemic and 4 hemorrhagic) were reported. This damage to health occurred between 1 and 4 days after vaccination. The role of the vaccine is not excluded for cases of shingles but remains uncertain for other side effects. High blood pressure is already being investigated, especially in patients with no history. Also, mild adverse effects related to reactogenicity appear beyond 7 days. Regarding people who have already been infected with Covid-19, the “data highlight only one particularity, namely a higher proportion of non-serious systemic reactogenicities in these people (fever, fatigue, headache, chills, vomiting, diarrhoea...) than in people with no known history of COVID-19 infection ”.
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