A major public health investigation is underway in Sydney after a cluster of rare fungal infections, linked to hospital construction activity, resulted in two patient fatalities and four serious illnesses. The outbreak occurred within the transplant unit of the Royal Prince Alfred (RPA) Hospital in Camperdown between October and December of last year.
The causative agent has been identified as Aspergillus, a common mold typically found in soil, plants, and damp environments. Health experts indicate that construction work and excavation on the hospital’s grounds likely disturbed deposits of the mold, releasing its spores into the air. While generally harmless to the general public, Aspergillus poses a severe threat to immunocompromised individuals, particularly transplant recipients whose immune systems are deliberately suppressed.
Upon detecting an unexpected surge in infections, hospital infectious disease clinicians initiated an immediate response. As a precautionary measure, all patients were evacuated from the transplant ward and relocated while a specialized remediation team executed an intensive deep cleaning protocol. Concurrently, significant upgrades were implemented for the ward’s air filtration systems, with subsequent air quality tests confirming the successful reduction of Aspergillus to safe levels.
The Sydney Local Health District has extended its deepest condolences to the families of the deceased patients. Hospital authorities proactively notified other vulnerable patients who had been on the ward; however, no additional cases have been reported. Some high-risk individuals were administered antifungal medication as a preventive measure.
NSW Chief Health Officer Dr. Kerry Chant, leading an advisory panel, has since certified the ward as safe for reopening. The investigation continues to focus on the precise transmission pathway, with NSW Health pledging to collaborate with construction contractors to implement any recommended safety measures. The incident has cast a spotlight on the RPA Hospital’s ongoing $940 million redevelopment project, which is situated near the transplant unit and is scheduled to continue until 2029.