This photograph shows a view of vials on a production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. (Photo by Sylvain THOMAS / AFP via Getty Images)

This photograph shows a view of vials on a production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. (Photo by Sylvain THOMAS / AFP via Getty Images)

This photograph shows a view of vials on a production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. (Photo by Sylvain THOMAS / AFP via Getty Images)

This photograph shows a view of vials on a production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. (Photo by Sylvain THOMAS / AFP via Getty Images)

Employees work on a CryoPark production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. The CryoPark is a facility dedicated to the storage and global distribution of biological products and samples at very low temperatures, particularly for messenger RNA vaccines, gene therapies, and other biopharmaceutical innovations. (Photo by Sylvain THOMAS / AFP via Getty Images)

Employees work on a CryoPark production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. The CryoPark is a facility dedicated to the storage and global distribution of biological products and samples at very low temperatures, particularly for messenger RNA vaccines, gene therapies, and other biopharmaceutical innovations. (Photo by Sylvain THOMAS / AFP via Getty Images)

Employees work on a CryoPark production line during a press visit at the industrial site of the French pharmaceutical group Sanofi in Montpellier, in the south of France, on June 16, 2026. The CryoPark is a facility dedicated to the storage and global distribution of biological products and samples at very low temperatures, particularly for messenger RNA vaccines, gene therapies, and other biopharmaceutical innovations. (Photo by Sylvain THOMAS / AFP via Getty Images)

Employees work on a production line for clinical trials on a global scale during a press visit to the industrial site of the French pharmaceutical group Sanofi in Montpellier, southern France, on June 16, 2026. (Photo by Sylvain THOMAS / AFP via Getty Images)