Doctors have found what they believe are the first known cases of meningitis due to reactivation of chickenpox vaccine in two 14-year-old boys who received both recommended doses, according to a paper in the journal Pediatrics
Experts say the varicella vaccine -- licensed for use in the United States nearly a quarter century ago -- is exceedingly safe, though it is not recommended for people who are pregnant or immunocompromised.A student sued because he didn't want the chickenpox vaccine. Then he got chickenpoxBut in very rare cases, the live, weakened virus used in the vaccine can reactivate as herpes zoster, or shingles, similar to what can happen to people who have been infected with chickenpox.
Even among vaccinated children, the authors point out that herpes zoster has frequently been due to acquiring the virus from another infected person, not the vaccine.The US Centers for Disease Control and Prevention recommends that children routinely receive two doses of the vaccine: one between 12 months and 15 months and another between 4 years old and 6 years old.Each year in the United States, the varicella vaccination prevents more than 3.
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