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The World in Medicine
July 9, 2003

Asthma and Swimming Pools

JAMA. 2003;290(2):184. doi:10.1001/jama.290.2.184-a

Research by scientists from Belgium suggests that nitrogen trichloride, a powerful irritant and byproduct of the chlorine used to disinfect swimming pools, could be linked to the rising incidence of childhood asthma (Occup Environ Med. 2003;60:385-394).

The researchers measured levels of lung-specific proteins in the blood of primary school children who had swum regularly at indoor pools since early childhood. The researchers found a consistent and significant association between regular attendance at indoor swimming pools with the lung-specific proteins, which are markers of lung permeability and epithelial damage.

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