Novavax Completes Enrollment of PREVENT-19, COVID-19 Vaccine Pivotal Phase 3 Trial in the United States and Mexico PREVENT-19 enrolls 30,000 volunteers across 118 sites in the U.S. and Mexico GAITHERSBURG, Md., Feb. 22, 2021 (GLOBE NEWSWIRE) -- Novavax, Inc. (Nasdaq: NVAX), a biotechnology company developing...