Microbial incidence in upper respiratory tracts of workers in the paper industry

Publisher Website
Google Scholar
Abstract
The incidence of microbes in the nasal cavities of workers in 3 paper and board mills was investigated. A total of 234 persons exposed to mirobial aerosols and splashes from paper machine wires and debarker drums formed the exposure group. The control group consisted of 294 workers from the dry working areas: the winding and packing sections. Chi-square analysis was used to test the differences in the frequency of microbial incidence and various symptoms between the exposed and control groups. The nasal cavities of many workers, particularly workers in the debarkers, proved to be contaminated by Klebsiella pneumoniae, other coliforms, yeasts and molds; usually only 1 microbe was involved, but sometimes 2 or several species were found. Nasal bacteria and yeasts were largely derived from the mill and debarker air; the microbes in the air came mainly from process waters. Lack of association of nasopharyngeal symptoms with exposure to aerosols or nasal microbial contamination was interpreted as an indication of host defenses that were adequate to protect workers from harmful microbial colonization in paper mill environments.

This publication has 6 references indexed in Scilit: