He also earned several certificates, including Zoology (1958), Biology (1959), and Animal Physiology (1960), and became an Agrégé in Histology and Embryology in 1962.

[5] Quenum was an active member of the World Health Organization (WHO) Expert Committee on Professional & Technical Education of Medicine and Auxiliary Personnel from 1964 to 1965.

[13][14] As the Regional Director for Africa at the WHO, he had to engage with various governments and organizations to promote public health policies[8][15][16] including tabaco,[17] smallpox,[18][19] onchocerciasis,[20] AIDS,[21] and chemotherapy.

[citation needed] After his death, the Government of Cameroon established the Dr Comlan A.A. Quenum Prize for Public Health in 1987 in his memory.

[13] This prize is awarded by the WHO to recognize individuals or organizations that have made significant contributions to public health in Africa.