Did you get blood tests before vaccinations? We only received drops fo…

Did you get blood tests before vaccinations? We only received drops for polio and rotavirus. We didn't receive any vaccines because it was very hot, and the nurse in the polyclinic warned that the time for vaccinations had begun. I think we shouldn't do them until 3 years old, because lately I have heard that after vaccination, diseases that the child has can be exacerbated. Share your opinion.