ERBB2 and cancer: Zhang et al. [115] focused on the expression of the LMP2A protein, which is one of the proteins usually expressed by EBV in infected cells, and human epidermal growth factor receptor 2 (HER2), which is a protooncogen that has been associated with the development of different cancer types, such as esophageal [116], gastric [117], and breast [118] cancer.