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10:10
A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
Published on: October 5, 2015
Tuberculosis infection after humanitarian assistance, Guantanamo Bay, 1995
1Operational Medicine Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA.
Military Medicine
|March 29, 2001
Summary
Military personnel may contract tuberculosis infection from working with migrants. Risk factors include close contact with coughing individuals and foreign birth. Early detection and treatment are crucial for service members.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Military Medicine
Background:
- A military police unit redeployed from Guantanamo Bay, Cuba, had 5% of personnel test positive for purified protein derivative (PPD).
- Operation Sea Signal involved humanitarian and refugee operations in areas with high tuberculosis endemicity.
- Service members deployed to such regions face increased risk of tuberculosis infection.
Purpose of the Study:
- To determine the incidence of PPD conversion in soldiers deployed to Cuba.
- To identify risk factors associated with PPD conversion during deployment.
- To assess potential protective factors against tuberculosis infection in this population.
Main Methods:
- A case-control study was conducted among military personnel.
- Purified protein derivative (PPD) conversion was defined based on study criteria.
- Logistic regression analysis was used to identify independent risk and protective factors.
Main Results:
- 3.7% of the unit (46 soldiers) converted to PPD positive post-deployment.
- Working around coughing migrants (OR=6.73) and being born outside the U.S. (OR=4.89) were significant risk factors.
- Contact with psychiatric patients or individuals with known tuberculosis appeared protective (OR=0.22 and OR=0.16, respectively).
Conclusions:
- Military deployments to tuberculosis-endemic regions increase infection risk for service members.
- Occupational exposure to coughing migrants and foreign birth are key risk factors for PPD conversion.
- Enhanced tuberculosis screening and treatment protocols are recommended for U.S. military personnel.
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