LYZ and viral infectious disease: Lysozyme (hen egg white lysozyme) at concentrations ranging from 0.312 to 40 mg/mL was also tested on bovine diarrhea viruses, showing antiviral activity that depended on its presence throughout the course of virus infection (e.g., during the adsorption phase and the subsequent post-adsorption phase) and whose activity was directly proportional to the incubation period [63].