Tuberculosis (TB) is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs. It is caused by a bacterial microorganism, the tubercle bacillus or Mycobacterium tuberculosis. Although TB can be treated, cured, and can be prevented if persons at risk take certain drugs, scientists have never come close to wiping it out. Few diseases have caused so much distressing illness for centuries and claimed so many lives.

The Advisory Committee on Immunization Practices (ACIP) recommends a two-dose vaccine schedule for measles, mumps, rubella and varicella vaccines for children, with the first dose at age 12-15 months and the second at age 4-6 years. 

Two vaccination options considered equivalent in terms of disease protection can be used to implement the ACIP recommendation among children 12 months-12 years of age: administration of trivalent measles, mumps, and rubella (MMR) vaccine and varicella vaccine (preferably at the same visit), or quadrivalent measles, mumps, rubella and varicella (MMRV)vaccine. 

This web page was designed to answer questions that healthcare providers may have about the vaccination options and febrile seizures.

Center for Disease Control and Prevention Q&As About Vaccination Options for Preventing Measles, Mumps, Rubella, and Varicella