Covid Report: Moderna Stock Catapults On First Positive Test For Vaccine

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https://www.investors.com/news/technology/coronavirus-vaccine-mrna-stock-flies-promising-phase-1-test/
The biotech tested three dosing regimens of its coronavirus vaccine in healthy adults ages 18-55. Across all three groups, participants began showing began showing antibodies against Covid-19 by day 15 after receiving one dose. The presence of antibodies could indicate immunity.

In one group, patients received two doses of the coronavirus vaccine. At day 43, two weeks after receiving the second dose, the level of antibodies in participants' blood was similar to levels for patients who already recovered from Covid-19

A second group received two higher doses of the coronavirus vaccine. At day 43, the antibodies in their blood exceeded that of recovered Covid-19 patients. The third group of patients received a single higher dose. Samples aren't yet available for those participants.

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