Definition: The Adenovirus Type 4 and Type 7 vaccine, live, oral (A12039) is a series of live attenuated polioviruses, which are used to prevent childhood cases of measles, mumps, rubella, and pertussis caused by the measles virus. It is administered orally to protect children from these diseases. The A12039 vaccine has been approved by the FDA for use in infants from 2 months up to 6 years old. The vaccine contains three small viruses that can infect a child's respiratory tract, which then stimulates an immune response to the measles virus. These small viruses are also able to travel and infect other parts of the body, including the brain. Before vaccination is administered to children, it must first be tested in human volunteers to ensure safety for humans. The vaccine is given to infants as part of their routine immunization schedule, usually every 2 years, after age 6 months to 8 years old. The A12039 vaccine has been shown to provide significant protection against measles, mumps, rubella, and pertussis in children aged up to 7 years. It is also effective at preventing the disease from spreading to older children. In summary, the Adenovirus Type 4 and Type 7 Vaccine, Live, Oral (A12039) is a series of live attenuated polioviruses used to protect against measles, mumps, rubella, and pertussis in infants. It was approved by the FDA for use in infants aged up to 6 years old.
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