Evidence of Infection among Ferrets exposed to high levels of nebulized NC99.

aFor exposures to ferrets 2-C and 2-D, the diffusion dryer was inserted into the line exiting the Collison generator, reducing the humidity at the end of the hour nebulization.bCalculation of inhaled virus based on measured viral RNA in aerosol inhaled during 60 min of aerosol exposure.cNasal wash was collected on day 2 post exposure (pe) in Exp 1, and daily in Exp 2; culture results are reported for the entire collection as FFU/mL; viral RNA is the peak titer on day 3 pe and is reported as GEq/collection.