...And finally 2021 is rising with the news of corona vaccine approval in India. The most awaited moment has been arrived. The dangerous 2020 slapped us from every aspect including health, economy, social life and mental stability. 2020 tested us from the bottom and here we are at the edge of 2021. All those who survived this difficult time are the warriors according to Darwin's principle 'The Survival of Fittest'. But still the fittest testing is on. The audition for the best human being is still continue. Now it's time for vaccine administration. The hope and courage our scientists have been showing should not be wasted by our irresponsible acts. Corona virus was an unsolved question just before some months and now we are gradually getting rid of it. We have so many doubts in our minds and the same doubts have been arised from the vaccine arrival. We knew nothing about vaccine. That leads us to guess various ideas about its composition, its efficacy and i
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