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Detection of Invasive Pulmonary Aspergillosis in Haematological Malignancy Patients by using Lateral-flow Technology
Published on: March 22, 2012
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
Abstract:
Aspergillus species are the most common causes of invasive mold infections in immunocompromised persons. This review examines the available information regarding the rising incidence of invasive aspergillosis in different high-risk groups, including persons with acute leukemia, hematopoietic stem cell transplant recipients, and liver and lung transplant recipients. The risk factors for infection in these groups are discussed. Because Aspergillus species are widespread in the environment, it is difficult to link specific sources and exposures to the development of human infections. However, molecular strain typing and other studies indicate that a significant number of Aspergillus infections are now being acquired outside the health care setting, either before patients are admitted to hospital, or after they have been discharged. The role of environmental control measures and antifungal drug prophylaxis in the prevention of hospital- and community-acquired aspergillosis is discussed.
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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