Quote:
Originally Posted by outlaw
But if you allowed these special cases to attend school then everyone would not be vaccinated. It seems no one has a good answer as to why a non vaccinated kid would pose a material threat to a vaccinated kid.
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I don't know if you are serious in that posting, but I will answer it as if you don't already know the reasons.
No vaccine is 100% effective in producing protection. Some are 99+ % and some are in the 70% range (whooping cough). There are some vaccines that require a series of shots each one re-exposing the patient to a piece of the disease organism to get the body to increasingly respond with anti-bodies and T-cells which will be available should there be a future attack by the actual disease. Over time for some vaccines this immune system preparedness wanes and needs to be boosted. You should be receiving a tetanus booster every 10 years.
Even in a fully vaccinated person it is entirely possible that they are not fully protected as there may have been a sub-adequate response to the vaccine, the vaccine may have been administered incorrectly (given IM when it should have been subQ or vice versa, improperly stored or shipped etc.)
There are also what you derisively call special cases which I don't see as special but fully expected and predictable. There will be in a school not only children who did not get immunity when they were vaccinated, but children who are immunosuppressed either through new illness or medication. Every school has kids on chemo. Every school has kids on immunosuppressants for illnesses. Every community has children too young to have been even offered vaccines.
Read about the measles outbreak in Calif that is continuing to spread and note that a small percentage of those who have become ill were vaccine recipients. So absolutely, non-vaccinated people are a risk both to those who also have not been vaccinated and to those who have been vaccinated. And that is everyone.