Understanding mRNA COVID-19 Vaccines
According to Centers For Disease Control And Prevention, Messenger RNA vaccines—also called mRNA vaccines—are some of the first COVID-19 vaccines authorized for use in the United States.

mRNA vaccines are a new type of vaccine to protect against infectious diseases.

mRNA vaccines teach our cells how to make a protein—or even just a piece of a protein—that triggers an immune response inside our bodies.
The benefit of mRNA vaccines, like all vaccines, is those vaccinated gain protection without ever having to risk the serious consequences of getting sick with COVID-19.
COVID-19 vaccines are not interchangeable. If you received a Pfizer-BioNTech or Moderna COVID-19 vaccine, you should get the same product for your second shot.
mRNA vaccines do not give someone covid 19. It does not use the live virus that causes COVID-19.
mRNA does not affect or interact with our DNA in any way. That is, it never enters the nucleus of the cell, which is where our DNA (genetic material)

Sperm Parameters Before and After Vaccination

According to this study,
“Two mRNA vaccines, BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna), received Emergency Use Authorization from the US Food and Drug Administration, Despite high efficacy and few adverse events found in clinical trials, only 56% of individuals in the US reported wanting to receive the vaccine. One of the reasons for vaccine hesitancy is the potential negative effect on fertility.
We assessed sperm parameters before and after mRNA vaccine administration”

READ MORE: https://thenaturehill.com/covid-mrna-vaccine-does-it-affect-sperm-quality/