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GLIN==> New Infectious Diseases articles




FROM THE CENTERS FOR DISEASE CONTROL....

Southern Ontario in particular pay attention to
this article....great downloadable maps relating
disease to CAFO animal populations in Southern Ontario.

Associations between Indicators of Livestock
Farming Intensity and Incidence of Human Shiga
Toxin-Producing Escherichia coli Infection,
J.E. Valcour

http://www.cdc.gov/ncidod/EID/vol8no3/01-0159.htm

The impact of livestock farming on the incidence of human Shiga
toxin-producing Escherichia coli (STEC) infection was assessed by using 
several livestock density indicators (LDI) that were generated in a 
systematic approach. A total of 80 LDI were considered suitable proxy 
measures for livestock density. Multivariate Poisson regression identified 
several LDI as having a significant spatial association with the incidence 
of human STEC infection. The strongest associations with human STEC 
infection were the ratio of beef cattle number to human population and the 
application of manure to the surface of agricultural land by a solid 
spreader and by a liquid spreader. This study demonstrates the value of 
using a systematic approach in identifying LDI and other spatial
predictors of disease.


=======

Deer and cryptosporidium....

Just published by Centers for Disease Control
with implication for Michigan and its large deer
herd....

http://www.cdc.gov/ncidod/EID/vol8no3/01-0194.htm

Novel Cryptosporidium Genotypes in Sporadic Cryptosporidiosis
Cases: First Report of Human Infections with a Cervine Genotype

Corinne S. L. Ong,*† Diane L. Eisler,* Alireza Alikhani,* Vicki W. K. 
Fung,* Joan Tomblin,‡ William R. Bowie,* and Judith L. Isaac-Renton*†
*University of British Columbia, Vancouver, British Columbia; †BC Centre 
for Disease Control, Vancouver, British Columbia; ‡BC Biomedical 
Laboratories Ltd., Surrey, British Columbia, Canada.


In this study, we genotyped parasites from the fecal specimens of sporadic 
cryptosporidiosis cases in British Columbia from 1995 to 1999. Genotyping 
was conducted by polymerase chain amplification of the internal transcribed 
spacer region, a hypervariable region in the 18SrRNA gene and the 
Cryptosporidium oocyst wall protein gene. Subsequent analysis was by
restriction fragment length polymorphism and DNA sequencing. We identified 
two new Cryptosporidium genotypes in humans. One of these genotypes has 
been found recently in deer in New York state. The other genotype has not 
been identified in humans or animals.

These results have important implications for drinking water quality 
strategies, especially for communities that obtain drinking water supplies 
from surface sources located in forested regions with deer populations.

Full article at URL




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