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CHICAGO – With measles spreading in the biggest epidemic for years, are you protected?
Even those who have received a vaccine, if you have a certain age, you may need another vaccine.
And some have never received a vaccine.
Many adults presume to have received the measles vaccine. But it was introduced only in 1963. But surprisingly, people born before that date can be safe.
Dr. Allison Bartlett is a pediatric infectious disease specialist at the University of Chicago Medicine.
"We assume that anyone born before 1957 has been exposed to several measles outbreaks, which gives them immunity," she said. "About 98% of people born before 1957 are immune. That's how measles was common. Everyone has had it, so they are unclear. "
If they survive the measles outbreaks of the 1950s, people develop lifelong immunity. But those who have been vaccinated after that can still be in danger.
Two versions of the measles vaccine were available between 1963 and 1967, a live version and a killed version. The killed virus vaccine has proven to be less effective. People who have their medical records can check to see which one they have. Without knowing it, they can have a blood test to check their immunity. But Bartlett says that it might be easier to just consider the vaccine against the anther.
"There is no harm in giving it if you have already had it," she says.
Recognize opportunities to increase the protection of the community as a whole so that people who have not been vaccinated in these particular birth cohorts and may not have obtained the best product currently available are important to protect vulnerable infants.
Risk of measles
- Born before 1957 – 98% are immunized against measles
- Born in 1957-1963 – need measles vaccine
- Born in 1963-1967 – may need a revaccination
- Born after 1967 – immunized against measles if vaccinated
Anyone born before 1957 should not worry.
From 1957 to 1963, those born were not exposed to measles and were not vaccinated at the recommended age. They need a dose of vaccine.
Anyone born between 1963 and 1967 was probably vaccinated but perhaps with a faulty inoculation. Experts advise to revaccinate.
After 1967, the ineffective vaccine was withdrawn and the rubella, rubella and rubella vaccine that people received continues to protect them.
For children, most infants are vaccinated at one year, and then again at 4-6 years of age, the vaccine will provide lifetime immunity against measles.
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