Figure 6. Deposition of virus in the respiratory tract of Syrian hamsters after inoculation with Nipah virus.

Nipah virus was purified and fluorescently labeled with Alexa Fluor 680; three hamsters were inoculated intranasally, esophageally or via drinking with 10⁷ TCID₅₀ of labeled virus; two hamsters were not inoculated (mock). The head and respiratory tract were collected and imaged in an IVIS Spectrum imager. Scale bar indicates average radiant efficiency. Graph bar indicates average radiant efficiency in the head (top) and lungs (bottom) averaged from 3 animals per inoculation route and 2 animals for mock; error bars indicate standard error of the mean.