What are the side effects of the corona vaccine?

Vaccine scientist Katherine Edwards, of Vanderbilt University School of Medicine in Nashville, Tennessee, says that public health officials must strike a "delicate balance" when reporting the risks of rare side effects compared to the risks of Covid-19. Doctors have some concerns or fears that a reluctance to receive vaccinations, which has already increased in some communities, may be arousing. At the same time, it is important not to rule out the possibility of rare but severe side effects until researchers are able to establish the relationship between vaccines and the occurrence of these side effects, a process that can take years, according to what was quoted by the “Nature” website.

The harm or side effect can be directly related to receiving a specific vaccine. For example, an early version of the polio vaccine, which used a weakened form of the virus to generate immunity, infected approximately 2.4 person out of every XNUMX million who got vaccinated.

In this context, Dr. Edwards explains that the virus strain used in the vaccine could have been isolated from the spinal fluid in these cases, so it was clear that the vaccine caused the disease.

Dr. Edwards adds that these types of tests may not be able to do all of the possible side effects, either because specific biomarkers are necessary to test, or because such tests may not be practical.

She says that the side effects, at least initially, are only related to their timing, as when a person receives a vaccine and then experiences side effects at some point after that, this makes it particularly difficult to prove whether what they were exposed to was actually caused by receiving the vaccine. Especially when the reaction occurs days or weeks after receiving the same vaccination.

Dr. Edwards explains that to check for a link between receiving the vaccine and a person's symptoms, researchers are conducting studies to determine the rate of side effects in vaccinated groups compared to the likelihood of them occurring by chance in people who did not receive the vaccine. Thus, they also need to identify the mechanism that could be causing it.

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