Greg frequently gets cold sores (caused by HSV-1). He recently noticed that his left eye had a painful lesion, and he immediately made an appointment with his doctor. Greg's eye most likely became infected with the herpes virus when he touched his mouth and shortly afterward rubbed his eye, which is transmission via:

autoinoculation.

Explanation:

The autoinoculation is a kind of self infection or it may occur when someone implant or infect oneself due to one's negligence. This can be considered both as beneficial medical process and a harmful natural mistake.

The autoinoculation is used for the treatment purpose in this the cells are removed from the body and they are modified and treated, then again placed back in the body. This is done to prevent the immune reaction, or for the purpose of treatment of illness.

The given situation, is an example of autoinoculation this is because of the fact that the infection caused to the eye is because the herpes virus transferred from the mouth to the eye, which is responsible for creation of lesion in the eye as infection.

proteins is the answer