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Previous Volume 330:1750-1751 June 16, 1994 Number 24 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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Two studies reported in this issue of the Journal^1,2 use new techniques of molecular epidemiology to extend our understanding of the transmission and control of an ancient disease -- tuberculosis. The conventional wisdom has been that 90 percent of active cases arose from foci of infection first acquired years or decades ago. In the United States alone, the pool of persons with latent tuberculous infection is estimated at 10 to 15 million³. But where do today's active cases come from? The reports in this issue suggest that at least in San Francisco and New York City, a third or . . . [Full Text of this Article]

References

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Transmission of Tuberculosis
McKenna M., Williams M. H., Pollen R. H., Joy M., Small P. M., Hopewell P. C., Schoolnik G. K., Kalkut G. E., Alland D., Bloom B. R., Frieden T. R., Hamburg M. A.
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N Engl J Med 1994; 331:1093-1096, Oct 20, 1994. Correspondence

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