In this Monday, March 9, 2020 file photo, Tedros Adhanom Ghebreyesus, Director General of the World Health Organization speaks during a news conference, at the WHO headquarters in Geneva, Switzerland. When the World Health Organization declared the coronavirus a pandemic one year ago Thursday, March 11 it did so only after weeks of resisting the term and maintaining the highly infectious virus could still be stopped. A year later, the U.N. agency is still struggling to keep on top of the evolving science of COVID-19, to persuade countries to abandon their nationalistic tendencies and help get vaccines where they’re needed most. (Salvatore Di Nolfi/Keystone via AP, file)