Figure 5From: Feline aminopeptidase N is not a functional receptor for avian infectious bronchitis virusIBV field isolates efficiently infect primary chicken kidney cells. Monolayers of CK cells were separately infected with IBV strain Ark99, Ark_DPI, CA99, Conn46, H52, Iowa97, and Mass41 for 12 h. Cell monolayers were labeled with monoclonal α-S1 or M (15:88, 13:18, or 9:19) antibodies to detect viral infection.Back to article page