EditorialPastor Roberto Lopez, right, and the Rev. Carlos Osorio, second from left, distribute information as people line up to receive antibody testing at Christian Church John 3:16 in the Bronx on May 16, 2020. (Chang W. Lee/The New York Times)
EditorialA health care worker collects a blood sample for a coronavirus antibody test at a restaurant in New York, May 13, 2020. (Misha Friedman/The New York Times)
EditorialFrom left, Dr. Caryn Bern, Dr. Alexander Marson, Patrick Hsu and Dr. Jeffrey Whitman, who have helped lead an effort to assess antibody tests for the coronavirus, in San Francisco, April 22, 2020. (Anastasiia Sapon/The New York Times)