Temporal and spatial distribution of human cryptosporidiosis in the west of Ireland 2004-2007.
AffiliationEnvironmental Change Institute, National University of Ireland, Galway, Ireland. firstname.lastname@example.org
MetadataShow full item record
CitationTemporal and spatial distribution of human cryptosporidiosis in the west of Ireland 2004-2007. 2009, 8:64 Int J Health Geogr
JournalInternational journal of health geographics
AbstractBACKGROUND: Cryptosporidiosis is increasingly recognised as a cause of gastrointestinal infection in Ireland and has been implicated in several outbreaks. This study aimed to investigate the spatial and temporal distribution of human cryptosporidiosis in the west of Ireland in order to identify high risk seasons and areas and to compare Classically Calculated (CC) and Empirical Bayesian (EB) incidence rates. Two spatial scales of analysis were used with a view to identifying the best one in assessing geographical patterns of infection. Global Moran's I and Local Moran's I tests of autocorrelation were used to test for evidence of global and local spatial clustering. RESULTS: There were statistically significant seasonal patterns of cryptosporidiosis with peaks in spring and an increasing temporal trend. Significant (p < 0.05) global spatial clustering was observed in CC rates at the Electoral Division (ED) level but not in EB rates at the same level. Despite variations in disease, ED level was found to provide the most accurate account of distribution of cryptosporidiosis in the West of Ireland but required spatial EB smoothing of cases. There were a number of areas identified with significant local clustering of cryptosporidiosis rates. CONCLUSION: This study identified spatial and temporal patterns in cryptosporidiosis distribution. The study also showed benefit in performing spatial analyses at more than one spatial scale to assess geographical patterns in disease distribution and that smoothing of disease rates for mapping in small areas enhances visualisation of spatial patterns. These findings are relevant in guiding policy decisions on disease control strategies.
- Geographical and temporal distribution of human giardiasis in Ontario, Canada.
- Authors: Odoi A, Martin SW, Michel P, Holt J, Middleton D, Wilson J
- Issue date: 2003 Aug 11
- Effect of precipitation on seasonal variability in cryptosporidiosis recorded by the North West England surveillance system in 1990-1999.
- Authors: Naumova EN, Christodouleas J, Hunter PR, Syed Q
- Issue date: 2005 Jun
- Spatial analysis of notified cryptosporidiosis infections in Brisbane, Australia.
- Authors: Hu W, Mengersen K, Tong S
- Issue date: 2009 Dec
- Epidemiologic evidence for clustering of equine motor neuron disease in the United States.
- Authors: de la Rúa-Domènech R, Mohammed HO, Atwill ER, Cummings JF, Divers TJ, Summers BA, deLahunta A, Jackson C
- Issue date: 1995 Nov
- Analysis of the spatial distribution of cryptosporidiosis in AIDS patients in San Francisco using density equalizing map projections (DEMP).
- Authors: Khalakdina A, Selvin S, Merrill DW, Erdmann CA, Colford JM Jr
- Issue date: 2003 Oct