BSL-3 Aerosol Exposure Capabilities

IITRI’s BSL-3 / ABSL-3 containment facility includes an aerosol exposure laboratory for inhalation delivery of pathogens, select agents and toxins. Aerosol inhalation challenge studies in a high-containment environment can be used for evaluation of medical countermeasures (MCMs) against aerosol-delivered infectious disease bioterrorism agents such as anthrax, Francisella tularensis, or Yersinia pestis, or for evaluation of treatments or vaccines towards aerosol-transmitted emerging diseases such as VEE, WEE, Mycobacterium tuberculosis, and high-path influenza.

Aerosol generation systems for biological solutions (bacterial and viral cultures, proteins) must be designed to minimize destruction of bacterial and viral solutions, which are sensitive to shear stress generated by aerosolization systems. IITRI utilizes a proprietary bioaerosol generation system that is comprised of six PARI LC plus nebulizers operated at lower pressures to minimize damage to microorganisms or biomolecules, and a 64-port nose-only exposure chamber through which supply and exhaust air are controlled by regulators and flow meters. Advantages of this system include:

IITRI Inhalation System Feature Advantage
Lower pressures for aerosol generation Higher bacterial and viral survival rates
Shorter exposure times, higher spray factors
Nose only administration (rodents, rabbits) Provides localized and quantifiable administration of test agent
Head-only administration (NHPs) Quantifiable administration of test article along with real-time plethysmography
64-port inhalation exposure chamber Allows testing a larger number of animals at once
Reduces number of exposure runs and decreases variability in the study
Efficient aerosol generation mechanism Eliminates the need for concentration steps prior to aerosol generation
Reduced foaming incidence Eliminates the need for surfactants that weaken bacterial cell walls
Animal models Rodent, Rabbit, Non-human primate (NHP)

Contact us to learn more about our bioaerosol generation capabilities.