In the HG , the number of IgA - and IgY - producing cells increased after the ocular inoculation of an adenovirus 5 vector expressing the avian influenza H5 protein [ 15 ] , and T effector cells ( CD3 + , CD44 + ) were detected in the HG and the CALT after infectious bronchitis virus ( IBV ) ocular inoculation [ 16 ] .