The spatial distribution of leprosy in four villages in Bangladesh: An obersvational study

E.A.J. Fischer, D. pahan, S.K. Chowdhury, L. Oskam, J.H. Richardus

    Research output: Contribution to journalArticleAcademicpeer-review

    17 Citations (Scopus)

    Abstract

    Background - There is a higher case-detection rate for leprosy among spatially proximate contacts such as household members and neighbors. Spatial information regarding the clustering of leprosy can be used to improve intervention strategies. Identifying high-risk areas within villages around known cases can be helpful in finding new cases. Methods - Using geographic information systems, we created digital maps of four villages in a highly endemic area in northwest Bangladesh. The villages were surveyed three times over four years. The spatial pattern of the compounds – a small group of houses – was analyzed, and we looked for spatial clusters of leprosy cases. Results - The four villages had a total population of 4,123. There were 14 previously treated patients and we identified 19 new leprosy patients during the observation period. However, we found no spatial clusters with a probability significantly different from the null hypothesis of random occurrence. Conclusion - Spatial analysis at the microlevel of villages in highly endemic areas does not appear to be useful for identifying clusters of patients. The search for clustering should be extended to a higher aggregation level, such as the subdistrict or regional level. Additionally, in highly endemic areas, it appears to be more effective to target complete villages for contact tracing, rather than narrowly defined contact groups such as households.
    Original languageEnglish
    Article number125
    Number of pages7
    JournalBmc Infectious Diseases
    Volume8
    DOIs
    Publication statusPublished - 2008

    Keywords

    • risk-factors
    • contacts
    • chemoprophylaxis
    • transmission

    Fingerprint

    Dive into the research topics of 'The spatial distribution of leprosy in four villages in Bangladesh: An obersvational study'. Together they form a unique fingerprint.

    Cite this