Sadí de Buen Lozano dating history

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Sadi de Buen Lozano (18 July 1893 – 3 September 1936) was a Spanish physician and parasitologist, notable for his efforts in the study and eradication of malaria in Spain, his discovery of the agent and vector of Spanish relapsing fever, a form of borreliosis, and his role in introducing the mosquito-eating fish Gambusia affinis to Europe as a biological control method. He was executed by Nationalist forces at the beginning of the Spanish Civil War.