Screening People in Contact With Children May Help Prevent Tuberculosis
"Some of our data depends on the verbal reports of participants, and
this is certainly a limitation of the study. We found a very low incidence of
IV drug abuse, HIV infection, and jail history, which are all associated with
TB," says Soren. "And it's entirely possible that these risk factors
were underreported. It's also possible that some skin tests were positive due
to the boosting effect of BCG vaccinations." Controlling for these
variables in the future will help validate and expand the body of data.
The study was supported by the New York State Department of Health, the
Center for Community Health, and the National Institutes of Health.
- People who have been in contact with someone infected with TB can be
screened to determine whether they have been exposed to the disease.
- In a recent study, no active cases of TB were identified during contact
screening, but more than 30% of contacts had positive skin tests, making them
eligible for preventive therapy.
- Further research is needed to determine whether contact screening is
cost-effective and is a reasonable allocation of resources.