EBV is the herpes virus, which is closely related to nasopharyngeal cancer and is not the same as herpes pharyngitis. EBV is a pathogenic microorganism that is widespread in the population and can spread infection through saliva. It is the causative agent of infectious mononucleosis. In addition, EBV is closely related to nasopharyngeal cancer and childhood lymphoma, and is classified as one of the human tumor viruses that may cause cancer. Herpes isthmus is an inflammatory disease of the pharyngeal isthmus caused by coxsackievirus and other pathogens. It occurs in children aged 3-10 years old, and can also occur in adults. It is characterized by acute onset and is highly contagious, and the main symptoms include fever, sore throat, and pharyngeal herpes, which mostly appear in the pharyngeal portal, soft palate, and uvula. There is also loss of appetite, nausea and vomiting, headache and other symptoms. EBV and herpes pharyngitis are completely different.