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Tuber Lung Dis. 1992 Apr;73(2):73-6.

Microepidemics of tuberculosis: the stone-in-the-pond principle.

Author information

1
Royal Netherlands Tuberculosis Association, The Hague.

Abstract

In a low prevalence country with no systematic BCG vaccination and a low frequency of environmental mycobacterial infections, for each recognized case of tuberculosis or infection with M. tuberculosis source detection should be undertaken. Sometimes this search will lead to discovery of a microepidemic. The extent of contact screening in a microepidemic can easily be determined if observed group prevalences are compared to expected group prevalences. The described method illustrates this search for contacts in concentric circles around the source case: the stone-in-the-pond principle.

PMID:
1643300
DOI:
10.1016/0962-8479(92)90058-R
[Indexed for MEDLINE]

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