Halfdan T. Mahler was born on April 21, 1923, in Vivild and died on December 14, 2016.

He was a Danish medical doctor.

Mahler served three terms as director-general of the World Health Organization (WHO) from 1973 to 1988.

He was widely known for his effort to combat tuberculosis and his role in shaping the landmark Alma Ata Declaration that defined the Health for All by the Year 2000 strategy.

His first international activities were in tuberculosis and community work in under-developed countries.

Mahler directed a Red Cross antituberculosis campaign in Ecuador between 1950 and 1951.

Halfdan T. Mahler passed away at 93 years old.