Merck Frosst
Patients and Caregivers

Vaccine-Preventable Diseases

During the last 200 years, vaccination has had a tremendous impact on the quality of life of adults and children worldwide. No other modality — not even antibiotics — has had such a major effect on mortality reduction and population growth. To learn more about some of the vaccine-preventable diseases, click the links below.

Your Children and Chickenpox

Chickenpox

Most people believe that chickenpox is harmless, even normal, part of growing up. But it can be serious. A child is three to four times more likely to be hospitalized with complications due to chickenpox than from a motor vehicle accident of from a fall down the stairs.

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Meningitis

Meningitis is an inflammation of the meninges, the lining surrounding the brain and spinal cord. When you hear or read about a bacterial meningitis outbreak in schools and communities it is usually caused by a bacterium known as meningococcus type C, one of the leading causes of meningitis.

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Hepatitis A

Planning a trip?

Visit this section to find out why hepatitis A is often considered a travel disease and how to help protect yourself from hepatitis A.

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Hepatitis B

Hepatitis B is a viral infection that is spread through blood and other body fluids. Find out more about hepatitis B, and what are the symptoms of this infection by visiting this section.

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Pneumococcal Pneumonia

Are you at risk for pneumococcal pneumonia? Visit this section to learn more about the causes of this serious infection and how to reduce your risk with preventative measures.

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Rotavirus

Rotavirus

A severe case of rotavirus could strike at any time, putting your infant’s health at risk. Visit this section to find out how you can help protect your baby with RotaTeq® (Rotavirus Vaccine/Live/Oral/Pentavalent)

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This site is for residents of Canada. / This site was updated on May 2, 2008.