Immune System - Question about vaccines!?!
Question: Children must be vaccinated against certain diseases before they can enter school. Some parents feel that vaccinations are dangerous.
-Explain to these parents what a vaccine is and what it does in the body
-State one way a child could develop immunity to a certain disease without being vaccinated
Identify one part of a research plan that must be followed when developing a new vaccine
Any help is greatly appreciated. (:
Answers: Children must be vaccinated against certain diseases before they can enter school. Some parents feel that vaccinations are dangerous.
-Explain to these parents what a vaccine is and what it does in the body
-State one way a child could develop immunity to a certain disease without being vaccinated
Identify one part of a research plan that must be followed when developing a new vaccine
Any help is greatly appreciated. (:
a vaccine basically infects the person with a mild strain of an antigen (ie an infectious agent), the body's immune system reacts to this in a mild way and produces antibodies. This is known as the primary response.
The next time the same type of antigen is detected by the immune system, it recognises it immediately and the level of antibodies are much higher, and they are able to stop a disease developing. This is known as a secondary response.
A child could be immune to a disease as a result of a genetic mutation, everyones immune system varies.
When developing a new vaccine the researchers will need to find out which receptors play a role in the spread of a virus or bacteria, and look at the molecular shape.
Also clinical trails would be required,
do your own homework!
Vaccines contain bacteria or viruses (microbes) either parts of wholes that have been killed or weakened so they don't causes diseases. These microbes work with the immune system to create antibodies against the bacteria or viruses. So if you are exposed say to Measles the body remembers these bacterias or viruses so the body is able to fight of the diseases quickly and you don't get sick.
Infants are born with some of the mothers antibodies and if breast feed get even stronger..but they wear off after time...not sure the answer to that question
that's easy but you look it up and do your own home work!
The very best help I can give you is to urge you to do your own research instead of asking for the answers to be handed to you. Three words: Run...a...search.