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1 - contains dead bacteria or weak bacteria or toxins.
2 - stimulates the body to make antioxidants.
3 - gaining immunity after a period.
4 - remain immune for long.
1 - does not contain bacteria or toxins.
2 - contains anti formed in another animal.
3 - acquired immune immediately.
4 - remain a short time.
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Jun 28th, 2015
vaccine is a little dose of the disease that your body can handle.
when the body is injected with it it will form antibodies that will be
ready for the real disease when it comes