EditorialLouis Shantzek, a retiree who tried unsuccessfully to get a monoclonal antibody treatment after he tested positive for COVID, at home in Miami, Jan. 3, 2022. (Scott McIntyre/The New York Times)
EditorialChris Neblett generated low levels of antibodies after his third shot of the Pfizer vaccine, but it wasn’t until his fourth shot in November that his antibody levels matched a normal, healthy individual’s response. (Kristian Thacker/The New York Times)
EditorialA patient receives monoclonal antibodies in Anchorage, Alaska, on Oct. 25, 2021. Officials have been eager for a pill option. (Ash Adams/The New York Times)
EditorialLaura Jeffery, 43, receives an infusion of monoclonal antibodies at the Houston Methodist Hospital in Texas, on Wednesday, Sept. 15, 2021. (Brandon Thibodeaux/The New York Times)
EditorialSteven Harris, 58, who said he believes that the antibodies he has from getting COVID-19 are sufficiently protective, in Scottsdale, Ariz., on June 26, 2021. (Adriana Zehbrauskas/The New York Times)
EditorialA member of the U.S. military and an employee of the New Jersey Institute of Technology prepared doses of the Pfizer-BioNTech COVID-19 vaccine at an immunization site in Newark, N.J., June 19, 2021. (Bryan Anselm/The New York Times)
EditorialDr. Andrew Wollowitz, the chief of emergency medicine at Montefiore Medical Center in the Bronx, quarantines at home in Mamaroneck, N.Y., April 5, 2021. (Desiree Rios/The New York Times)
EditorialPavel Dashkevich donates plasma after recovering from COVID-19 in hopes that his antibodies can help other coronavirus patients, in Moscow, April 29, 2020. (Sergey Ponomarev/The New York Times)
EditorialSamples of breast milk from women who have received COVID-19 vaccines, used by Rebecca Powell, a human milk immunologist at the Icahn School of Medicine at Mount Sinai in Manhattan, in her research, in New York on March 25, 2021. (James Estrin/The New York Times)
EditorialPeople wait in line to receive the Sputnik V coronavirus vaccine at the State Department Store GUM in Moscow on Jan. 19, 2021. (Sergey Ponomarev/The New York Times)
EditorialPresident Donald Trump delivers remarks to supporters from the balcony of the White House in Washington, Oct. 10, 2020. (Doug Mills/The New York Times)
EditorialDr. Kartik Chandran is the principal investigator of the Prometheus collaboration of scientists, who are researching monoclonal antibodies as a treatment for COVID-19. (Gabby Jones/The New York Times)
EditorialIn one ZIP code in the Corona neighborhood of Queens, more than 51 percent of people tested positive for coronavirus antibodies.? (Victor J. Blue/The New York Times)
EditorialLab technicians collect blood samples for antibody testing from staff at a restaurant in Brooklyn, May 13, 2020. (Misha Friedman/The New York Times)
EditorialHealth care workers draw blood in a random sampling for coronavirus antibodies in Munich, April 15, 2020. (Laetitia Vancon/The New York Times)
EditorialSailors with the U.S. Navy are screened for coronavirus symptoms before boarding the Theodore Roosevelt in Guam, May 1, 2020. (U.S. Navy via The New York Times)
EditorialHealth care workers from Northwell Health at First Baptist Church in the East Elmhurst neighborhood of Queens, where people were receiving tests for coronavirus antibodies, May 23, 2020. (Juan Arredondo/The New York Times)
EditorialA healthcare worker, left, takes a blood sample from a man, during testing for the coronavirus and antibodies at a clinic in Moscow, Friday, May 15, 2020. (Sergey Ponomarev/The New York Times)