According to the CDC Vaccine Information Statement we received from our daughter's pediatrician, the MMR vaccine can cause "mild problems" including fever, rash, and glandular swelling; "moderate problems" including fever-induced seizure
and painful joints; and "severe problems" such as serious allergic reactions, deafness, coma, and permanent brain damage.
Hirtz of the National Institute of Neurological Disorders and Stroke in Bethesda, Md., studied 217 children between 8 and 36 months of age who hadhad at least one fever-induced seizure in the past and were at high risk of having another such seizure.
In addition, the researchers found children taking phenobarbital were just as likely to suffer another fever-induced seizure as their untreated peers, indicating the drug is ineffective at preventing fever-induced seizures.
A widely used drug thought to prevent fever-induced seizures in infants and young children can lower scores on intelligence quotient tests, according to a new scientific report.
To clarify the mechanism, further research on fever-induced seizures
"It's quite likely that if what we see in rats holds true in children, these fever-induced seizures
lower the threshold for later seizures," says Ivan Soltesz of the University of California, Irvine, one of the study's investigators.