by injecting the weakened virus into your body it helps the body familiarize and create the right antiviruses for the virus so that if it ever gets in your system you can actually fight it.
hope that helps <3
First of all science is needed to study most things including diseases and this is so since the study of diseases would require a research organism of course and this is any creature that scientist would use to study life and so without science this would not be possible as science allows for the study of animals and humans which are likely to be vectors and diseases requires epidemiology which are scientific disciplines similar to biology to better understand the disease processes and so science is definitely needed.
I think it's A not sure tho
<span>I think the highest peak in iota cancri is 3.611 m #believe
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If you go to this link, you will be able to see the answer: http://prezi.com/eatd8nhptvh1/?utm_campaign=share&utm_medium=copy&rc=ex0share