JAMA : the journal of the American Medical Association
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Age-related differences in etiology were examined in 214 instances of mycobacterial cervical lymphadenopathy. In adults, Mycobacterium tuberculosis was isolated from 147 lymph nodes and "atypical" mycobacteria was isolated from seven nodes. ⋯ The preponderance of Mycobacterium avium-intracellulare in cervical adenitis in children contrasts with reports of Mycobacterium scrofulaceum as the most frequent causative agent in other geographic areas and may reflect either a change in causative agents or geographic differences. However, the finding of M tuberculosis in 8% of nodes indicates that other mycobacteria cannot be assumed to be the only cause of this disease in children.
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From 1976 through 1981, the incidence of tuberculosis in the United States among children 0 through 14 years of age failed to decline. The incidence had declined at a rate of about 9% per year from 1962 through 1975. ⋯ Data confined to 1980 and 1981 suggested that Hispanic children with tuberculosis may have accounted for the stability of the tuberculosis case rate among white children. Tuberculosis among Indochinese refugee children accounted for the stability of the case rate among children of other races.
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Biography Historical Article
Medicine in the USA: historical vignettes. XX. The Flexner report of 1910.