New York State Chemistry RegentsNew York State Earth Science Regents

 
Living Environment Regents January 2008 Question 56 PDF Print E-mail
NYS Living Environment Regents January 2008
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The substance in a vaccine that makes the vaccine effective is a weakened virus.

The white blood cells produce antibodies in response to the vaccine.

Antibodies have specific shapes and each antibody shape is complementary to one shape of the virus.

Vaccine can be made for any disease caused by a specific virus. But, common cold is caused by many different types of viruses. Hence, the vaccine for common cold would have to contain all the viruses causing this.
 

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