Currently, the vaccines that are given to children from birth to 15 months are very effective.Polio vaccination is being given to children up to five years of age, which is very necessary.Due to vaccination today we have been able to prevent diseases like Hepatitis B and measles.Due to the discovery of vaccines, various diseases have become weak in the world and research is still going on to discover new vaccines.Only because vaccines have been discovered, epidemic diseases have not survived in the world today.Thank you very much for sharing your comments on vaccines.