Covid-19 vaccine efficacy: a comparison study of pfizer, moderna, and j&j vaccines
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People have been living isolated, socially distancing from others, and wearing masks everywhere they go on a daily basis for more than a year now. All the hope for the return of normal life
has been put in the COVID vaccines. Numerous people are searching for the best COVID vaccine in the world. Read on to know the most effective COVID vaccine in the world. People have been
facing the pandemic for more than a year now and within this short amount of time many scientific teams have come up with their own form of COVID vaccines. Pfizer, Moderna, and Johnson &
Johnson are the three main companies that have been able to come up with COVID vaccines that are the most effective in the world. To learn which is the best COVID vaccine in the world the
people will have to compare the vaccines made by these 3 Companies. Here's a comparison of the COVID vaccines by Pfizer, Moderna, and Johnson & Johnson below: