Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.

Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.

Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.

Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.

Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.

Biden Picks Former F.D.A. Chief Kessler to Lead U.S. Vaccine Efforts

Dr. David Kessler, who helped speed the development and approval of AIDS drugs in the 1990s, will become the top science official for the initiative the Trump administration had called Operation Warp Speed.