Marcel Bessis

Bessis married Claude Desserteaux in 1952; the couple raised three children. Bessis died in Paris on 28 March 1994.

In 1967, Bessis was named a knight of the Legion d'Honneur. He was also a commander of the Ordre national du Mérite and an officer of the Ordre des Arts et des Lettres. He was elected to the French Academy of Sciences in 1979 and the Académie royale de Médecine de Belgique [fr] in 1991. He was an honorary president of the Société française d'hématologie.

From 1946 to 1980, Bessis was editor-in-chief of the Nouvelle revue d'hématologie. In 1948 he was appointed director of research at the Centre national de transfusion sanguine [fr] (National Centre of Blood Transfusion), serving in that role until 1966, when he became the founding director of the Institut de Pathologie cellulaire (Institute of Cell Pathology) at INSERM. He began working as a professor of hematology at the University of Paris in 1961, becoming full professor in 1972. Bessis was appointed editor-in-chief of Blood Cells in 1975, and from 1986 until his death in 1994 was a co-director of the Centre de recherches sur l'écologie des cellules du sang at the Hôpital de la Salpêtrière.

Marcel Claude Bessis (15 November 1917 – 28 March 1994) was a French physician known for research on blood cells.

Bessis was born in Tunis on 15 November 1917. He was educated at the Lycée Janson-de-Sailly in Paris, France. He developed an interest in microscopy in his teenage years and went on to study medicine at the University of Paris. During the Second World War, he served as a military physician and pioneered the technique of exchange transfusion to treat war injuries. He graduated with a medical degree in 1944. Later he studied exchange transfusion as a treatment for hemolytic disease of the newborn, uremia and acute leukemia. He was a frequent collaborator of Jean Bernard.