Infantry soldiers from the Givati brigade of the Israel Defense Forces train with new, high-tech weapons and computers at the army's urban warfare training base on March 22, 2005, in southern Israel. (Photo by Yael Bar Hillal/IDF via Getty Images)
Researchers at the UW Medicine Retrovirology Lab at Harborview Medical Center work on samples from the Novavax phase 3 Covid-19 clinical vaccine trials on February 12, 2021 in Seattle, Washington. (Photo by Karen Ducey/Getty Images)