Henrique Beaurepaire Rohan de Aragão, Brazilian microbiologist and parasitologist (Niterói, Rio de Janeiro State 21 December 1879 – Rio de Janeiro 26 February 1956) From French
ancestry Authored
171 papers Considered
as world authority on Myxomatosis and Mite Systematics VIROLOGY/PARASITOLOGY Individualized the etiologic agents of alastrim
and chickenpox (1911) Described smallpox, chickenpox and milkpox viroses
Demonstrated the existence of elementary bodies in chickenpox known as Aragão bodies (1911) and in rabbit myxoma (1912)
Discovered the etiologic agent of rabbit’s myxoma characterizing it as a virosis
Characterized the myxoma infection steps
Showed that rabbit’s myxoma could be transmitted mechanically by mosquito bites (1943)
With A. M. Costa Lima showed that yellow fever could be transmitted mosquito to mosquito With Costa Lima performed studies about behavior of yellow fever virus in mosquito and its transmissibility requirements
Established the identity of African and American virus of yellow fever
First demonstrated experimentally the possibility of transmission of Leishmania brasiliensis by Phlebotomus sp. independently from Sergent studies in Algeria (1922) ZOOLOGY Discovered the exo-erythrocytary cycle of Haemosporidia when elucidated the life cycle of Haemoproteus columbae (1906) Discovered the parthenogenetic reproduction of Ixodidae mites DESCRIBED TAXA Bacteria Genus Calymmatobacterium 1912 with Vianna Species Calymmatobacterium granulomatis 1912 with Vianna (etiologic agent of granuloma inguinale) Protozoa Valid Genera Polytomella 1910 Copromastix 1916 Species Amoeba diplomitotica 1909 Atoxoplasma adiei 1911 Atoxoplasma serini 1933 Atoxoplasma sporophilae 1911 Atoxoplasma sicalidis 1911 Copromastix prowazeki 1916 Entamoeba brasiliensis 1912 Hepatozoon alticorae 1911 Hepatozoon paroariae 1911 Hepatozoon rhamphocoeli 1911 Phytomonas françai 1927 Plasmodium diploglossi 1909 with Neiva Plasmodium tropiduri 1909 with Neiva Polytomella agilis 1909 Treponema minimum 1913 with Vianna Acari Family Nuttallielidae Species Amblyomma agamum 1912 Amblyomma brasiliensis 1908 Amblyomma conspicuum 1912 Amblyomma lutzi 1908 Amblyomma mantiquirense 1908 Amblyomma minutum 1909 Amblyomma pacae 1911 Amblyomma parkeri 1952 with Fonseca Amblyomma parvum 1908 Amblyomma pseudoconcolor 1908 Dermacentor triangulus 1935 Haemaphysalis kochi 1908 Haemaphysalis proxima 1909 Ixodes cooleyi 1951 with Fonseca Ixodes didelphidis 1952 with Fonseca Ixodes schulzei 1951 with Fonseca Ornithodoros brasiliensis 1923 Ornithodoros rostratus 1911 METHODS Established the protection test in Rhesus monkeys for diagnosis of yellow fever Employed a protective test technique on the
monkey for the retrospective diagnosis of human infections Showed the living virus requirement for immunization against yellow fever Simplified technique of vaccination with serum
and with living cerebral virus Developed a vaccine against spirillosis in chickens (1907) Prepared an efficient vaccine against Treponema gallinarum (1911) First employed formaldehyde as a vaccine sterilizer (1911) A method for bacteriological diagnosis of plague in only 16 hours With H. da Rocha Lima. Nova técnica para o diagnóstico da “peste”. Ann. Braz. Med. (1906) Developed a method for diagnosis and conservation of parasites in blood and faeces using a modified Thoma’s fluid Novo Methodo para facilitar o diagnostico e a conservação dos embryões de filaria no sangue e de parasitas nas fezes. Brasil Médico 33(2):9, 1918 Aragão solution or liquid for examining amebic cysts EPONYMS Aragão-Vianna bacterium (Calymmatobacterium granulomatis)
Aragão bodies HONORS Honorary Member, Société de Pathologie Exotique, France Bernhard Nocht Medal DID YOU KNOW? He suggested Australian government that myxomatosis virus should be used for rabbit control that was adopted decades later (1919) LINKS His son, Mário de Beaurepaire Aragão, parasitologist (Rio de Janeiro 10 May 1918 – Rio de Janeiro 01 October 1999) With N. Margem & E. Frota-Pessoa. A new radioactive method for marking mosquitoes and its application. Proc. Geneve Conference on Peaceful Applications of Atomic Energy. page 40, 1955. HONORS Mariostrongylus Teixeira de Freitas & Franco 1967 (Nematoda)
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