Novavax Offers U.S. a Fourth Strong Covid-19 Vaccine
Novavax, a small American company buoyed by lavish support from the U.S. government, announced on Monday the results of a clinical trial of its Covid-19 vaccine in the United States and Mexico, finding that its two-shot inoculation provides potent protection against the coronavirus. In the 29,960-person trial, the vaccine demonstrated an overall efficacy of 90.4…