Numerous side effects linked to Covid-19 vaccines have been reported by health authorities. What are they? We take stock of the latest adverse effects identified by the ANSM (French National Agency for Medicines and Health Products Safety) and those highlighted in various scientific studies.
79%. That’s the percentage of French people who had completed their vaccination schedule as of February 13, according to . Four vaccines are available in France: Pfizer/BioNTech, Moderna, AstraZeneca, and Janssen. A fifth has just been authorized and will soon complete the French vaccine arsenal:
The French National Agency for Medicines and Health Products Safety (ANSM), which compiles a list of side effects for the various Covid-19 vaccines, reminds the public that “as with any vaccination, the person who has received the vaccine may experience adverse effects .” In fact for healthcare professionals, updated on December 23, 2021, it lists the side effects of Covid-19 vaccines, from the most frequent to the rarest.
A total of 136,085,564 doses of the Pfizer, Moderna, AstraZeneca, and Janssen vaccines have been administered, according to the latest COVID-19 vaccine surveillance update covering the period from January 14 to 27, 2022. A total of 137,400 cases of side effects have been recorded since the start of the vaccination campaign. 75% are considered “non-serious” and 25% “serious.”
Potential new side effects reported by patients are also monitored and referenced by health authorities as they occur.
Pfizer vaccine: what are its side effects?
104,822,400 injections have been administered with the Pfizer (Comirnaty) vaccine. A total of 83,708 cases of side effects have been recorded since the start of the vaccination campaign. In its report of February 4, 2022, the ANSM (French National Agency for Medicines and Health Products Safety) indicates that 74% of adverse effects are considered “non-serious” and 26% “serious”.
While the ANSM (French National Agency for Medicines and Health Products Safety) did not identify any new signals or events requiring monitoring during the period of January 14-27, 2022, it reiterated the confirmed signals, namely hypertension, myocarditis, and pericarditis. It also reiterated the potential signals or events already under surveillance, including shingles, cardiac arrhythmias, acute pancreatitis, Epstein-Barr virus reactivation, multisystem inflammatory syndrome, and menstrual disorders. Regarding this last side effect, the Director General of the ANSM stated on December 1, 2021, during her hearing before the Senate, that “the discussions we have had with healthcare professionals are reassuring: the disorders resolve on their own and are most often very short-lived . “
The information sheet provided to healthcare professionals by the ANSM (French National Agency for Medicines and Health Products Safety) summarizing the side effects of the Pfizer vaccine includes:
Very common side effects (≥ 1 in 10):
- a reaction at the injection site (pain, swelling)
- fatigue
- headaches
- myalgia
- chills
- joint pain
- fever
- diarrhea
Common side effects (≥ 1 in 100 to ≤ 1 in 10):
- a reaction at the injection site (redness)
- nausea
- vomiting
Uncommon side effects (≥ 1 in 1,000 to ≤ 1 in 100):
- pain in the extremities
- lymphadenopathy
- insomnia
- a feeling of unease
- itching at the injection site
- hypersensitivity reactions (rash, itching)
- hyperhidrosis
- night sweats
- a decrease in appetite
- lethargy
- asthenia
Rare side effects (≥ 1 in 10,000 to ≤ 1 in 1,000):
- hives
- angioedema
Very rare side effects (≤ 1/10,000):
- myocarditis
- pericarditis
Side effects with an undetermined frequency:
- anaphylaxis
- extensive swelling of the vaccinated limb
- facial swelling
Pfizer vaccine: side effects more frequent in women than in men
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