Guest guest Posted December 31, 2003 Report Share Posted December 31, 2003 > The MMR vaccine consists of three live (but attenuated) viruses. It > > works by causing an acute infection (actually, three simultaneous > > acute infections) which then stimulates the immune system to produce > > antibodies and increase the number of " memory cells " . Live virus > > vaccines are favored because they produce a stronger, longer lasting > > immune response. > > > > At least one study has found live (and contagious) vaccine-strain > > measles virus in the throat of a child that was recently vaccinated. > > Presumably, the vaccine strain is approximately as contagious > > as " wild-type " measles is (which is to say, VERY). This means that > > you don't necessarily have to be vaccinated to be infected with the > > vaccine strain of measles (and, presumably, mumps and rubella). > > > > So, all the studies comparing autism rates in vaccinated vs. > > unvaccinated children have a serious flaw. While it is less likely > > that an unvaccinated child could become infected with all three of > > the MMR strain simultaneously, it is still very possible. Given the > > general lack of hygeine among children of the MMR vaccination age > > (about 15 months), children in close contact with recently > > vaccinated " peers " could essentially get the MMR vaccine without the > > fuss of a needle-stick. > > > > With more attention being focused on the measles vaccine strain as a > > possible culprit in at least some cases of autism (remember, autism > > existed before any vaccine against measles), the idea that the > > vaccine strain of measles is potentially contagious puts > a > > whole new > > spin on the subject. > > > > > > -- Quote Link to comment Share on other sites More sharing options...
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