The U.S. reaches a pivotal moment in the COVID-19 pandemic with two major vaccine candidates. (Stock image.)

With the ever-growing list of COVID-19 vaccine candidates, developers are moving onto the next step in the process: emergency use authorization (EUA). Following the approvals, it is only then that officials can deploy the vaccines to the citizens of different countries. However, early deployment of vaccines could lead to consequences given that the vaccine trials are still ongoing, and…

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