This review essay may contain some errors about the objective truth. Also, this review essay is completely written by myself. Therefore might have a biased opinion. Please tell me if this essay includes some errors about the objective truth. Also, I like to hear your idea about my opinion. Please leave them on the comment.
The basic reason why Covid19 has a lot of variants is that many people are suffering from it. Since the virus itself wants to survive, therefore changing itself is one of their strategies to be more capable of surviving. When many variants are generated and spread out, vaccines that human civilization made will be no longer effective or at least less effective. Then, how does the virus change itself and evolve? There is a protein called spike protein. It is the protein that has something that looks like a spike called a protomer. When the Covid19 spread first in Wuhan China, the protomers on the protein had a closed shape. Because of it, it didn't interact with the human cells well and made it less effective. However, the variant called D614G, which has an open shape protomer, spread since 2020 June started from the United Kingdoms. Now became the dominant variant spread over the U.K and South Africa either.
Also, Covid19 has another kind of evolution tactic that neutralizes the antibody by changing the form of the virus or remove the part that interacts with the antibodies.
In conclusion, since the vaccine is not perfect and will be neutralized when different kinds of variants came out, other methods to keep us safe are required.
In my opinion, I think we should keep our social distancing until a new kind of method that eradicates the virus or calm down its toxicity. Like using a mask or hand sanitizer. And don't use public places without them.
Thank you.
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