In 2020, he criticized those who equated using the term "Wuhan virus" with racism, stating, "Scientists...have been naming diseases after the places they came from for a very long time. Zika is from the Zika Forest, Ebola from the Ebola River, hantavirus the Hantan River. There's the West Nile virus and Guinea worm and Rocky Mountain spotted fever and, of course, the Spanish flu." He added: "This has nothing to do with Asian Americans, and it has everything to do with China."