Extended Data Figure 4: Airborne transmission of α2,3 H1N1pdm virus after 48 h exposure time.
From: The soft palate is an important site of adaptation for transmissible influenza viruses
Transmission studies were performed with 4 pairs of animals (8 animals total) in double secure cages with perforated dividers. One ferret in each pair was infected with 106 TCID50 of the indicated virus; a naive ferret (referred to as airborne-contact) was introduced into the adjacent compartment 24 h later. The airborne-contact animal was removed from the transmission cage on day 3 post-infection as indicated by the black arrow. Nasal secretions were collected every other day for 14 days. Viral titres from the nasal secretions are graphed for each infected or airborne-contact animal. The grey shading indicates the exposure time between the infected and airborne-contact animals.
