1857 MALMSTEN, Pehr Henrik (1811 – 1883)

Infusorier, sasom intestinaldjur hos menniskan.

Discovery of Balantidium coli, the first parasitic protozoon to be discovered and recognized as such. German translation in Virchows Arch. path. Anat., 1857, 12, 302-09. English translation in Kean et al. (No. 2268.1).

GMN 3455 · https://historyofmedicine.com/id/5581

1898 BOROVSKII, Petr Fokich (1863 – 1932)

On sart sore.

First description of the protozoon later named Leishmania tropica. The paper is in Russian; for a translation, see C. A. Hoare, in Trans. roy. Soc. trop. Med. Hyg., 1938, 32, 78-90.

GMN 5294 · https://historyofmedicine.com/id/6438

1903 –1915 CLARKE, James Jackson (1860 – 1940)

Protozoa and disease. 4 vols.

GMN 2458 · https://historyofmedicine.com/id/2989

1908 NICOLLE, Charles Jules Henri (1866 – 1936); MANCEAUX, Louis Herbert (1865 – 1943)

Sur une infection à corps de Leishman (ou organismes voisins) du gondi.

Toxoplasma described. English translation in Kean (No. 2268.1).

GMN 5534 · https://historyofmedicine.com/id/6684

1908 SPLENDORE, Alfonso (1871 – 1953)

Un nuovo protozoa parassito de’ conigli incontrato nelle lesioni anatomiche d’una malattia che ricorda in molti punti il kala azar dell’uomo.

Splendore discovered Toxoplasma in a rabbit; it was named T. cuniculi.

GMN 5534.1 · https://historyofmedicine.com/id/6689

1914 CASTELLANI, Aldo (1877 – 1971)

Note on certain protozoa-like bodies in a case of protracted fever with splenomegaly.

Castellani was first to suspect that toxoplasmosis could affect humans.

GMN 5535.1 · https://historyofmedicine.com/id/6695

1921 HEGNER, Robert W. (1880 – 1942); CORT, William W. (1887 – 1971)

Diagnosis of protozoa and worms parasitic in man.

GMN 11010 · https://historyofmedicine.com/id/13206

1925 HASSALL, Albert (1862 – 1942); STILES, Charles Wardell (1867 – 1941)

Key-catalogue of the protozoa reported for man.

GMN 2461 · https://historyofmedicine.com/id/3008

1926 WENYON, Charles Morley (1878 – 1948)

Protozoology. 2 vols.

Wenyon was one of the world’s foremost authorities on medical protozoology.

GMN 2462 · https://historyofmedicine.com/id/3012

1937 WOLF, Abner (1902 – 1983); COWEN, David (1907 – 2001)

Granulomatous encephalomyelitis due to an encephalitozoon (encephalitozoic encephalomyelitis), a new protozoon disease of man.

Definite recognition of human toxoplasmosis. See also their later paper in the same journal, 1938, 7, 266-83.

GMN 5544.1 · https://historyofmedicine.com/id/6754