Invasive filamentous fungal infection is a permanent threat in
the hospital setting, particularly in tertiary care hospitals.
Indeed, immunocompromised patients inhale mold conidia
outside the hospital (i.e., at home or outdoors), as well as
within the hospital environment. Invasive aspergillosis has
been linked to fungal contamination of hospital buildings,
with the risk of acquisition increasing with the level of
contamination [1]. Construction works and contaminated
air-handling systems have been identified as sources of
infection in many outbreaks of nosocomial aspergillosis
[3,12] .