Tuesday, May 18

“Vaccine Surveillance Report”: What Adverse Effects Are Most Common?



Healthcare workers, elderly residents and nursing home workers, social health workers, dentists, physiotherapists, teachers are the groups that have largely already been vaccinated against Covid-19. Now, little by little, the long-awaited doses of immunization are already reaching those over 80 years of age and large dependents. And while […]Read more…

Healthcare workers, elderly residents and nursing home workers, social health workers, dentists, physiotherapists, teachers are the groups that have largely already been vaccinated against Covid-19.

Now, little by little, the long-awaited doses of immunization are already reaching those over 80 years of age and large dependents.

And meanwhile the Spanish Medicines Agency (AEMPS) keep doing your monitoring of adverse effects that the administration of the vaccine could produce.

Fortunately, everything is going according to plan in clinical trials: fever, headache and body ache are still the most common reactions.

According to the data of the “3rd Pharmacovigilance Report on COVID-19 Vaccines”Of the AEMPS, Until February 21, 2021, 3,058,776 doses of vaccines have been administered in Spain against the coronavirus, and 64% of those vaccinated have already received the complete 2-dose regimen.

Well, until that date only 6,266 reports of adverse events have been registered, or what is the same, 205 notifications for every 100,000 doses administered.

89% have been communicated by health professionals, and 11% through the form addressed to citizens. Most of these notifications correspond to women (83%) and to people between 18 and 64 years old (91%).

Notably, there have been two cases of adverse effects in infants whose mothers had been vaccinated with COVID-19 Vaccine Moderna and Comirnaty.

Since the vaccination began at the end of December, 3 types of vaccines are being applied, 92% of the doses administered corresponded to Comirnaty (Pfizer-BioNTech), 4% to the COVID-19 Vaccine Moderna vaccine and 4% to the COVID-19 Vaccine AstraZeneca vaccine.

Pfizer’s Cominarty, the most administered vaccine so far

The Pfizer-BioNTech vaccine is being administered to front-line healthcare workers, nursing home residents and workers, and those over 80 years of age. In summary, until February 21, 2021, 2,808,344 doses of this vaccine have been administered, which corresponds to 1,631,448 people, since 1,176,896 already received the second dose.

Most of the notifications of “reactions” correspond to women (83%) and people between 18 and 64 years (90%), the groups that have mostly received this vaccine.

In this period, a total of 5,736 reports of adverse events after receiving Comirnaty, which would correspond to 204 notifications for every 100,000 doses administered.

The most commonly reported disorders are fever (39% of those vaccinated), pain in the injection site followed by headaches (29%), dizziness and muscle pain (20%).

Regarding the registered cases of deaths after vaccination, the Medicines Agency explains that they are not related to the vaccine and that the majority occurred in patients with various treatments and previous illnesses that explain the fatal outcome.

COVID-19 Vaccine Moderna, only 43 notifications of 129,602 doses

As for the one popularly known as Moderna’s vaccine, only 430 reports of adverse effects have been registered out of a total of 129,602 doses administered.

The fever and headache are also the most commonly referred symptoms after the administration of this vaccine, 42% and 28% respectively.

Again, the female gender is the majority among those vaccinated with Moderna, (73%). And as for the distribution by age groups, 97% correspond to people between 18 and 64 years old and 3% to those over 65 years of age.

COVID-19 vaccine AstraZeneca, 84 reports of 120,830 doses

Just a month ago the Oxford vaccine began to be administered in Spain, but some data is already available on its side effects, which in some communities have given much to talk about, especially in the educational field.

In just 21 days of administration, a total of 120,830 doses of COVID-19 Vaccine AstraZeneca were injected. Well, only a total of 84 notifications of adverse events, or what is the same, have been registered, until February 21, 69 notifications for every 100,000 doses administered.

And although many professionals in education and other job categories such as dentists or physiotherapists have had to take time off work for one or two days, the most reported general disorders are still fever (82% of those vaccinated) or pain in the area vaccination (21%).

Headaches (51%), dizziness (7%), and muscle pain (31%) have also been reported.

As this vaccine is not indicated, at the moment, for people over 55 years of age, the age group of all those vaccinated is the same, starting at 18. Again, the percentage of women vaccinated with AstraZeneca is higher than that of men, 67%.


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