In 1889 Patrick Manson returned to England to become qualified physician and worked at the Seamen's Hospital Society and also as lecturer on tropical diseases in St George's Hospital at London in 1882. His attention was soon drawn towards malaria and began to realise the implications of his own discovery of filarial transmission on malaria.[5] He strongly supported Laveran's germ theory of malaria, which was not yet completely embraced by the entire medical community of the time. He proposed that:[36]