Exogenous reinfection with tuberculosis in a shelter for the homeless.

  title={Exogenous reinfection with tuberculosis in a shelter for the homeless.},
  author={Edward A Nardell and Bayliss McInnis and Baby M Thomas and S Weidhaas},
  journal={The New England journal of medicine},
  volume={315 25},
We investigated an outbreak of tuberculosis in a large shelter for the homeless to assess the role of exogenous reinfection as opposed to reactivation of endogenous infection as the cause of secondary tuberculosis in this population. Exogenous reinfection is considered relatively unimportant in the United States and other developed countries. Of 49 shelter-related cases, 22 had cultures resistant to both isoniazid and streptomycin and of the same phage type, indicating recent transmission… CONTINUE READING

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