It is widely believed that prevention is better than cure. However, it is controversial as the safety and effectiveness of immunization are continually contested. The main question is whether or not vaccines are safe for humans. According to the Public Health Agency of Canada (PHAC), all vaccines used in Canada and around the world are thoroughly tested and approved for use that protects children and adults from various diseases and disabilities. Furthermore, the World Health Organization (WHO), reported that immunization is a proven tool for controlling and eliminating life-threatening infectious diseases and is estimated to prevent between 2 and 3 million deaths each year. It is one of the most cost-effective healthcare investments, with recognized strategies that make it accessible to even the most difficult-to-reach and vulnerable populations. Vaccinations are the safest way to protect an individual from brain, heart, and lung diseases and even death that does not require any major lifestyle changes. Vaccinations are free and safe for several reasons. This essay argues that vaccines are safe and economical means of providing preventative medicine. First, vaccines prevent disease, infection and disability. The CDC recommends vaccinations from birth through adulthood to provide lifelong protection against many diseases and infections, such as influenza, pneumococcal disease, hepatitis, and polio. According to the WHO, approximately 50,000 adults in the United States die from vaccine-preventable diseases. Like eating healthy foods, exercising and getting regular checkups, vaccines play a vital role in keeping an individual healthy (PHAC). Furthermore, research describes that unvaccinated children have a much greater risk...... middle of paper...... 2011 due to the halt in vaccinations shows that the vaccine is necessary to prevent diseases, infections and disability. However, it is important to evaluate the patient's health condition and allergies before administering any vaccine to minimize side effects. In conclusion, there is much evidence to show that immunization is an essential component in reducing vaccine-preventable diseases and is important for everyone, regardless of age and the country in which they live. live. Immunization protects individuals and communities by preventing the spread of disease. Immunization is one such preventive intervention, with the potential to bring economic benefits beyond simple health benefits. Studies show that disease prevention through vaccination far outweighs the risks. Vaccines allow an individual to develop immunity in a safe, controlled environment and are continuously monitored for safety and effectiveness.