Odor from industrial hog farming operations and mucosal immune function in neighbors.

From: Archives of Environmental Health | Date: February 1, 2004| Author: | Copyright information

The authors evaluated whether exposure to malodor from industrial hog farming operations has a psychophysiologically mediated immunosuppressive effect on secretory immunoglobulin A (slgA) in neighbors. Fifteen adults living within 2.4 km (1.5 mi) of at least one hog farming operation rated odor intensity on a 9-point scale and provided saliva samples twice daily for two weeks. The authors used hierarchical regression to model the association between reported odor and slgA; study participants were their own controls. The natural log of slgA concentration and secretion rate declined, on ...

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