Seasonal distribution of Henoch-Schönlein purpura.
A review of 76 Southampton children with Henoch-Schönlein purpura has confirmed that there is no evidence of a streptococcal aetiology in the majority of cases of this disease. Among these patients the frequency of preceding respiratory infection of all kinds was only 7 percent greater than that in controls. Data on month of admission in four areas of England and Scotland show that the incidence of the disease is lowest in the June-August period. Contrary to previous findings there is no marked peak of incidence in any single month.
D000293:Adolescent; D002648:Child; D005260:Female; D006760:Hospitalization; D006801:Humans; D011695:IgA Vasculitis / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D012141:Respiratory Tract Infections / Q000150:complications; D012621:Seasons; D013290:Streptococcal Infections / Q000150:complications; D013997:Time Factors