Novavax tumbles 30% as waning COVID-19 vaccine demand hits outlook

Shares of U.S. vaccine maker Novavax fell about 30% on Tuesday after it cut its annual revenue forecast by half over falling demand for its COVID-19 shot from low- and middle-income nations. Demand for its vaccine is also waning in the United States, where it was authorized for use among adults last month and was expected to be preferred by the skeptics of messenger RNA-based shots from Moderna Inc and Pfizer Inc