A 29-year-old European woman became infected with Trypanosoma brucei rhodesiense in the Luangwa valley, Zambia. Six days after the initial presentation of this infection she developed evidence of tropical pyomyositis (TP). These diseases, both of which are rare in Europids, were satisfactorily treated. The pathogenesis of TP, which is nearly always caused by Staphylococcus aureus, is undetermined. It seems possible that in this case either (i) both infections were introduced simultaneously by a tsetse-fly bite, or (ii) T. b. rhodesiense produced multiple focal necroses in skeletal muscles which acted as niduses for the staphylococcal infections; immunodepression caused by this parasite might also have been important.

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Royal Society of Tropical Medicine and Hygiene meeting at Manson House, London, 10 December 1992. George Carmichael Low FRCP: twelfth president of the Society and underrated pioneer of tropical medicine.

George Carmichael Low, like so many early pioneers of Tropical Medicine, had his origin(s) in Scotland. Following a distinguished undergraduate (and early postgraduate) career, he joined Dr Patrick Manson at the newly established London School of Tropical Medicine in 1899. His first major contribution to the specialty (in 1900) was to demonstrate filariae in the proboscis sheath of mosquitoes which had been infected with Filaria bancrofti in Australia, using a technique recently learned in Heidelberg and Vienna. Shortly afterwards, he led an expedition to the Roman Campagna; this established beyond doubt mosquito-transmission of Plasmodium vivax infection to Homo sapiens. In 1901-1902, Low undertook a demanding tour of the Caribbean where he made important contributions to the understanding of the filariases, and assisted in malaria eradication. In 1902 he led a small team (the Royal Society's first sleeping sickness expedition) to investigate the 'negro lethargy' which had emerged in epidemic proportions on the northern shores of Lake Victoria in East Africa. This expedition narrowly failed to establish the aetiological agent (Trypanosoma sp.) of this disease. Following his return to London, Low became superintendent of the Albert Dock Hospital and from then onwards devoted most of his career to the London School of Tropical Medicine and the Hospital for Tropical Diseases (where he became senior physician). He wrote extensively, in addition to his clinical, teaching and administrative commitments. Perhaps Low's major contribution, however, was in establishing the Society (later Royal) of Tropical Medicine and Hygiene in 1907, with Mr (later Sir) James Cantlie.(ABSTRACT TRUNCATED AT 250 WORDS)

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