Five Reasons to Vaccinate Your Child

Disease-preventing vaccines are safe and effective

School-age girl getting vaccinated.

Disease-preventing vaccines are safe and effective

Vaccination rates rose in California after the state passed a law in 2015 making it harder for parents and guardians to opt their children out of immunization on the basis of personal beliefs.


But despite the strict law, there remain schools and neighborhoods with low vaccination rates, including in San Diego County, and efforts to raise awareness about the safety and importance of disease-preventing vaccinations continue in earnest.


“I hope parents consider the benefits of vaccines and how these outweigh perceived risks,” says Erin O’Leary, MD, a pediatrician at Scripps Clinic Santee. “There are important reasons why parents should immunize their children against diseases that can be life threatening. It is always better to prevent a disease than to try to treat it and its side effects after it occurs.”


Dr. O’Leary explains the top five reasons that childhood vaccines are not only safe, but also necessary.

1. Vaccines protect the most vulnerable

Vaccines protect infants and children from serious diseases and their devastating effects, which can include paralysis, blindness and even death. Developed to combat these diseases, vaccines have worked so well that most people currently having children have never even had or witnessed these diseases and the damage they can cause.


“This lack of exposure to diseases has made it seem that it is safe to not vaccinate,” explains O’Leary. “However, the decline in vaccination rates that we were seeing allowed these diseases to make a comeback.”


For example, the US has been experiencing a large number of cases of measles in recent years, according to the Centers for Disease Control and Prevention (CDC).


CDC officials attribute this to international travel to countries where measle cases are up and to measles spreading in US communities with pockets of unvaccinated people.

2. Vaccines protect communities

Vaccination protects not only your family, but also your friends and your community. When your children receive vaccines, they are protecting themselves and those who cannot be immunized, such as children too young to be vaccinated and those who can’t receive certain vaccines due to a medical condition or a weakened immune system from an illness such as cancer.

3. Vaccines are safe

Vaccines have been proven to be safe and effective when given according to the schedule provided by the CDC. They are tested extensively by scientists and medical professionals and given at specific ages to protect children during the times at which they are most vulnerable to these diseases.


Dr. O’Leary adds that in the first few months of life, infants are exposed to thousands of bacteria on a daily basis, which puts a much higher demand on the immune system than the entire vaccine schedule.

4. Diseases know no borders

Vaccine-preventable diseases exist throughout the world and do not care about international borders. The world is a much smaller place due to easy access to air travel. Diseases that are not common in the US can get here by visitors from other countries or unvaccinated Americans who travel and return infected.


“It is not safe to say that unvaccinated children are ’protected‘ within their community,” says Dr. O’Leary.

5. Vaccines can eradicate diseases

Vaccines have the potential to eradicate serious diseases. For example, smallpox, a disfiguring disease, was officially declared eradicated worldwide in 1979.


“We are very lucky here in the US,” says Dr. O’Leary. “We have easy access to vaccines which has allowed us to greatly reduce or eradicate several diseases. However, the lack of access to vaccines in other countries have allowed diseases, like polio and measles, to remain prevalent and cause significant morbidity and mortality.”