This document discusses the significance of vaccination in homeopathy. It provides a brief history of vaccination starting in 429 BC and highlights Edward Jenner as pioneering the smallpox vaccine in 1790. The document outlines different types of vaccines including live, attenuated, inactivated, and recombinant vaccines. It also discusses routes of administration, levels of effectiveness, potential hazards and reactions to vaccination. Homeopaths such as Hahnemann, Kent, Burnett and Boenninghausen are cited who questioned the safety and efficacy of vaccination methods. The concept of vaccinosis as an iatrogenic disease caused by inoculation is introduced.