Epidemiology and Prevention of Invasive Aspergillosis

David W. Warnock1, Rana A. Hajjeh, Brent A. Lasker

  • 1Mycotic Diseases Branch, Centers for Disease Control and Prevention, 1600 Clifton Road, Mailstop G-11, Atlanta, GA 30333, USA. DWarnock@cdc.gov

Insights

Invasive aspergillosis, a serious mold infection, is increasing in immunocompromised patients. Many infections are now acquired outside hospitals, highlighting the need for better prevention strategies.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Immunocompromised Host

Background:

  • Aspergillus species are common causes of invasive mold infections.
  • Immunocompromised individuals, including those with leukemia and transplant recipients, are at high risk.
  • The incidence of invasive aspergillosis is rising in these vulnerable populations.

Purpose of the Study:

  • To review the rising incidence of invasive aspergillosis in high-risk groups.
  • To discuss risk factors associated with these infections.
  • To explore prevention strategies for both hospital- and community-acquired aspergillosis.

Main Methods:

  • Review of existing literature on invasive aspergillosis.
  • Analysis of epidemiological data on incidence and risk factors.
  • Discussion of molecular typing and environmental exposure studies.

Main Results:

  • Invasive aspergillosis incidence is increasing in immunocompromised patients.
  • A significant proportion of infections are acquired in the community, not just healthcare settings.
  • Identifying specific environmental sources remains challenging.

Conclusions:

  • Invasive aspergillosis poses a growing threat to immunocompromised individuals.
  • Community-acquired infections are a significant concern, necessitating broader prevention efforts.
  • Environmental control and antifungal prophylaxis are crucial for mitigating infection risk.

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