Launch of in-house sensitive cell-free deoxyribonucleic acid (cfDNA) mould polymerase chain reaction (PCR) assays increased detection of moulds meeting suspected healthcare-associated infection (HAI) criteria. Definition was based on time from admission and mould detection in culture or via molecular methods. We created a modified mould HAI algorithm incorporating clinical context into the case definition, which allowed for better capture of possible mould HAIs, decreased number of investigations, and improved utilization of Infection Prevention and Control (IPC) resources.
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