Angelo Celli (25 March 1857 – 2 November 1914)[1] was an Italian physician, hygienist, parasitologist and philanthropist known for his pioneering work on the malarial parasite and control of malaria.

[7][8] Celli married a German nurse Anna Fraentzel (born 1878), who was known for her voluntary health service during the First World War.

[1] In 1880 with Ettore Marchiafava Celli studied a new protozoan discovered by Alphonse Laveran in the blood of malarial patients.

He studied the biology and pathogenesis of the malarial plasmodium for years after this, working with Ettore Marchiafava, Amico Bignami, Giovanni Battista Grassi and Giuseppe Bastianelli.

[11] They were the first to use proper staining (with methylene blue) to identify malarial parasites as distinct blue-coloured particles in blood cells.

Francisco Saverio Nitti asserted that Atella, as an example, remained deserted until the adoption of the laws passed by the Chinino di Stato.

Celli's scientific and social achievements led to his receiving the Laurea Honoris Causa from the University of Athens and the Royal Society for the Promotion of Health in London.