On Monday, Massachusetts-based company Moderna reported promising preliminary results from its coronavirus vaccine trial. Coming just a week after similar news from Pfizer and BioNTech, the announcement immediately gave the stock market a fresh jolt. It offered more hope that there¡¯s going to be a way out of the pandemic.
Like Pfizer, however, Moderna released only early data from its trial. There¡¯s more work to be done before it¡¯ll know if the vaccine really is safe and effective. And even if Moderna¡¯s vaccine gets the green light from the Food and Drug Administration, it will take months to reach widespread distribution. In the meantime, the United States is suffering a devastating explosion of new cases of COVID-19.
Here¡¯s where things stand with the development of coronavirus vaccines.

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