Fig. 2
From: Detection of avian, murine, bovine, shrew, and bat coronaviruses in wild mammals from Mexico

Characteristic lesions of AIBV infection in chicken embryos inoculated with rectal swab isolates. The embryo on the right shows representative lesions of IBV infection, including dwarfism, curling, and abnormal down-feather development. The embryo on the left is an uninoculated control of the same age