Travelers at Shanghai Hongqiao Railway Station in Shanghai, China on Dec. 12. China's public health officials say up to 800 million people could be infected with the coronavirus over the next few months. Qilai Shen/Bloomberg via Getty Images hide caption
On Wednesday, May 4th, 2022 a mix of masked and unmasked individuals shop at the Portland Farmers Market in Shemanski Park in Portland, OR. Leah Nash/The Washington Post / Getty Images hide caption
People walk past a COVID testing site on May 17 in New York City. New York's health commissioner, Dr. Ashwin Vasan, has moved from a "medium" COVID-19 alert level to a "high" alert level in all the five boroughs following a surge in cases. Spencer Platt/Getty Images hide caption
The U.S. omicron outbreak has dramatically slowed, cutting wait times for tests. But health officials worry a new uptick in cases fueled by the BA.2 variant could be on the way. Joe Raedle/Getty Images hide caption
After declining most of the fall, COVID-19 cases are rising again in many parts of the U.S. Valerie Macon/AFP via Getty Images hide caption
In Idaho, a record number of people are hospitalized with COVID-19, raising the possibility of rationing medical care. Many states are grappling with the fallout of the delta variant's surge in cases. Kyle Green/AP hide caption
A COVID-19 vaccine dose is prepared at a pharmacy in Baton Rouge, La., on Aug. 17. About 14 million people received their first dose of a COVID-19 vaccine in August. Mario Tama/Getty Images hide caption
Front-line workers at a medical center in Aurora, Colo., gather for a COVID-19 memorial on July 15 to commemorate the lives lost in the coronavirus pandemic. New estimates say many thousands more will die in the U.S. this summer and fall. Hyoung Chang/MediaNews Group/Denver Post via Getty Images hide caption