Chronic inﬂammatory thickening of the lung tissue, due to the inhalation of dust in textile factories. It is found chieﬂy among cotton and ﬂax workers and, to a lesser extent, among workers in soft hemp. It is rare or absent in workers in jute and the hard ﬁbres of hemp and sisal. With much-improved working conditions in the UK, where byssinosis is one of the PRESCRIBED DISEASES, the disease is rare, but it is still common in some Asian countries where textiles are manufactured.
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