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Disinfectants (humidifier disinfectants used in the home or occupational setting)

Household compounds containing polyhexamethyleneguanidine phosphate were used in the 2010s in Korea (PMID 26987713, 26990641, 34204162)

Last update : 06/07/2021

Diagnosing DIRD

Drug and radiation history

Drug singularity - Correct identification of the drug

Consistent timing of exposure v. onset of symptoms

Clinical, imaging, BAL, pathological pattern consistent with the specific drug

Careful exlusion of another cause

Remission of symptoms with removal of drug

Recurrence with rechallenge (rarely advisable)

Causality assessment