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8-23-16

CVHC advising: Be wise immunize

When you're getting your kids ready for the upcoming school year, make sure to include back-to-school vaccine appointments on your checklist.

While vaccines are often thought of as something for babies and young children, preteens and teens also need vaccines to stay healthy throughout the school year. Vaccination protects preteens and teens against serious and potentially life-threatening diseases, including meningitis and cancers caused by HPV infections.

These diseases are still around and very real. When children are not vaccinated, they are at increased risk for diseases and can also spread diseases to others in their classrooms and community.

Vaccine benefits

Once your immune system is trained to resist a disease, you are said to be immune to it. Before vaccines, the only way to become immune to a disease was to actually get it and, with luck, survive it. This is called naturally acquired immunity. With naturally acquired immunity, you suffer the symptoms of the disease and also risk the complications, which can be quite serious or even deadly. In addition, during certain stages of the illness, you may be contagious and pass the disease to family members, friends, or others who come into contact with you.

Impact of vaccines in the United States

Widespread use of vaccines in the United States has eliminated or almost eliminated infectious diseases that were once terrifying household names. *Single case of oral vaccine-associated polio in 2009.
Credit: Morbidity and Mortality Weekly Report, Centers for Disease Control and Prevention, 4/2/99, 11/12/10

Vaccines, which provide artificially acquired immunity, are an easier and less risky way to become immune. Vaccines can prevent a disease from occurring in the first place, rather than attempt to cure it after the fact.

Benefits for you and others

It is also much cheaper to prevent a disease than to treat it. In a 2005 study on the economic impact of routine childhood immunization in the United States, researchers estimated that for every dollar spent, the vaccination program saved more than $5 in direct costs and approximately $11 in additional costs to society.

Vaccines protect not only yourself but also others around you. If your vaccine-primed immune system stops an illness before it starts, you will be contagious for a much shorter period of time, or perhaps not at all. Similarly, when other people are vaccinated, they are less likely to give the disease to you. Vaccines protect not only individuals but entire communities. That is why vaccines are vital to the public health goal of preventing diseases.

If a critical number of people within a community are vaccinated against a particular illness, the entire group becomes less likely to get the disease. This protection is called community, or herd, immunity. On the other hand, if too many people in a community do not get vaccinations, diseases can reappear. In 1989, low vaccination rates allowed a measles outbreak to occur in the United States. The outbreak resulted in more than 55,000 cases of measles and 136 measles-associated deaths.

For further information, see: http://www.niaid.nih.gov/topics/vaccines/Pages/vaccineBenefits.aspx.

--From the National Institute of Health and Center for Disease Control

For further information on this and other health topics, visit the web site of the National Institute of Health at www.nih.gov.