Fig. 1.

Coincident airway exposure to CMV and antigen sensitizes for AAD. Top Experimental protocol and time schedule. OVA-tagged Ovalbumin, fluorochrome-conjugated with Alexa Fluor 647 for red fluorescence. Lower panels Histological images of bronchial mucosa tissue sections stained by Periodic Acid Schiff (PAS) combined with hematoxylin/eosin (HE). GC goblet cells stained in red. Bar marker: 25 µm, applying to all images. Based on the work by Reuter et al. (2019) [17], with new graphical arrangement and using new tissue sections from stored specimens. Histological images courtesy of J. Podlech, Institute for Virology, Mainz