“…Most cases arise in the wake of a banal upper respiratory tract infection but some have been described in association with diseases presumed to be autoallergic-for example, thrombotic thrombocytopenic purpura (Symmers, 1956), ulcerative colitis (Glotzer et al, 1964), acute rheumatism (Dobbs and de Saram, 1938), acute glomerulonephritis (Aldridge, 1956), and asthma and other atopic phenomena (Greenfield, 1950;Moossy et al, 1954;Aronson and Aronson, 1966). Acute 1942), arsphenamine (Russell, 1937), oxyphenarsine (Symmers, 1956), and para-amino salicylic acid (Edge, 1951;Marsh, 1952;Cavanagh, 1953).…”